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Liu JB, Zhou YJ, Du FZ, Man YB, Wong MH, Cheng Z. Human health risk assessment based on a total diet study of daily mercury intake in Chengdu, China. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:138. [PMID: 38483661 DOI: 10.1007/s10653-024-01910-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 02/10/2024] [Indexed: 03/19/2024]
Abstract
To assess the total daily mercury intake and main exposure sources of residents, six food groups, including marine fish, freshwater fish, poultry, livestock, vegetables, and cereals, were collected from five districts of Chengdu, China. The median concentrations of total mercury (THg) and methylmercury (MeHg) were 12.8 and 6.94 μg kg-1 ww, respectively. Cereals (32.2%), vegetables (30.5%), and livestock (16.2%) contributed to a much larger extent to the total consumption for the participants in Chengdu. All food categories that contributed the most of THg (2.16 μg day-1) and MeHg 1.44 (μg day-1) to the daily intake in Chengdu were cereals and marine fish, respectively. The total Hazard Ratios values below 1 in this study indicate that there is no health risk associated with Hg ingestion from the consumption of these foods for the residents in Chengdu.
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Affiliation(s)
- Jun Bo Liu
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Ya Jun Zhou
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Fang Zhou Du
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Yu Bon Man
- Consortium on Health, Environment, Education, and Research (CHEER), and Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong, People's Republic of China
| | - Ming Hung Wong
- Consortium on Health, Environment, Education, and Research (CHEER), and Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong, People's Republic of China
| | - Zhang Cheng
- College of Environment, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China.
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Mufakhir FR, Yoga GP, Darusman T, Lestari DP, Arriyadi D, Utami RR, Sumardi S, Astuti W, Prasetia H. Mercury risk assessment scenarios: exposure from fish dietary behaviors of Katingan River Basin community. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024:1-17. [PMID: 38245837 DOI: 10.1080/09603123.2024.2303980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 01/07/2024] [Indexed: 01/22/2024]
Abstract
Katingan River has been contaminated by mercury from ASGM activities since the early 2000s. This study aims to assess the risk of mercury exposure from Katingan fish consumption and analyze relationships between exposure variables. We proposed two risk assessment scenarios based on mercury analysis of 74 fish samples and fish consumption questionnaire. The risk assessment result revealed that estimated daily intakes (EDIs) of Scenario 2 were generally 3-4 times higher than Scenario 1. The statistical test results showed significant differences (p < 0.05) in EDI values between scenarios, indicating that variations in fish consumption influenced the mercury intake. Three different health reference-based values (HRVs) were applied in estimating the hazard quotient (HQ) and it influenced the HQ results (p < 0.05), for both scenarios. The relationship analysis between variables presented a strong non-linear correlation between EDI and hair mercury level for both scenarios, but a weak relationship between age and hair mercury level.
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Affiliation(s)
- Fika R Mufakhir
- Research Center for Mining Technology, National Research and Innovation Agency (BRIN), South Lampung, Indonesia
| | - Gunawan P Yoga
- Research Center for Limnology and Water Resources, National Research and Innovation Agency (BRIN), Bogor, Indonesia
| | - Taryono Darusman
- Research and Development Department, PT Rimba Makmur Utama, Bogor, Indonesia
| | - Dwi P Lestari
- Research and Development Department, PT Rimba Makmur Utama, Bogor, Indonesia
| | - Desra Arriyadi
- Research and Development Department, PT Rimba Makmur Utama, Bogor, Indonesia
| | - Rosetyati R Utami
- Research Center for Limnology and Water Resources, National Research and Innovation Agency (BRIN), Bogor, Indonesia
- Institute for Science in Society, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Slamet Sumardi
- Research Center for Mining Technology, National Research and Innovation Agency (BRIN), South Lampung, Indonesia
| | - Widi Astuti
- Research Center for Mining Technology, National Research and Innovation Agency (BRIN), South Lampung, Indonesia
| | - Hendra Prasetia
- Research Center for Mining Technology, National Research and Innovation Agency (BRIN), South Lampung, Indonesia
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Mir Y, Wu S, Ma M, Ran Y, Zhu K, Mangwandi C, Mirza ZA. Mercury contamination in the riparian ecosystem during the reservoir discharging regulated by a mega dam. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:4405-4422. [PMID: 35089477 DOI: 10.1007/s10653-022-01205-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Mercury (Hg) is extremely poisonous and can be absorbed through touch, inhalation, or consumption. In the living environment, Hg in contaminated sediment can be transferred into grass by the direct absorption through the roots or shoots. The intake of Hg due to Hg emissions may pose a threat to living bodies especially to human beings. The present study aims to provide a novel insight about total mercury (THg) and methyl mercury (MeHg) in a riparian grass (Cynodon dactylon (L).Pers) and sediments during the discharging phase (summertime at 145 m water level) in Three Gorges Reservoir (TGR-China); where C. dactylon is a dominant perennial herb in the riparian zone. Yet, the potential risk of Hg contamination in the riparian ecosystem is not thoroughly assessed in the dam regulated reservoir. This study was conducted in the riparian zones of the reservoir formed by a mega dam (Three Gorge Dam) which regulates the water levels during the summer and winter period in the TGR. Our results showed that riparian sediments were acting as a sink for THg and MeHg. Insignificant correlation of THg and MeHg was found between the amphiphyte C. dactylon and its surrounding sediments in the TGR. Bioconcentration factors values for MeHg were found higher than 1 in all study locations in the riparian zones in TGR, which could be due to action of certain bacteria/purely chemical-based methylation on inorganic form of Hg. Additionally, translocation factor indices also highlighted that the amphiphyte C. dactylon was MeHg accumulator in riparian zones. These results suggested that since riparian sediment was found acting as the sink for THg and MeHg during discharging phase, MeHg contamination in the amphiphyte C. dactylon in riparian zones was not caused by the riparian sediments but by other factors, for instance, the anthropogenic activities in the TGR. Finally, this study leads to conclude that amphiphyte C. dactylon can be used as biomonitoring agent for Hg pollution in the TGR.
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Affiliation(s)
- Yaseen Mir
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shengjun Wu
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Maohua Ma
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Yiguo Ran
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kai Zhu
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Chirangano Mangwandi
- School of Chemistry and Chemical Engineering, David Kier Building Queen's University Belfast, Belfast, BT95AG, UK
| | - Zakaria Ahmed Mirza
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
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Qing Y, Li Y, Yang J, Li S, Gu K, Bao Y, Zhan Y, He K, Wang X, Li Y. Risk assessment of mercury through dietary exposure in China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 312:120026. [PMID: 36029907 DOI: 10.1016/j.envpol.2022.120026] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/25/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
Mercury (Hg) is a widespread heavy metal causing various damages to health, while insufficient studies assessed its exposure risk across China. This study explored concentrations in food items and dietary exposure risks across China by comprehensively analyzing the researches on total Hg (THg) in eight food items and methylmercury (MeHg) in aquatic foods published between 1980 and 2021. According to the included 695 studies, the average THg concentration in all food items was 0.033 mg/kg (ranging from 0.004 to 0.185 mg/kg), with the highest concentration in edible fungi. The average daily dietary THg exposure from all foods was 12.9 μg/day. Plant-based foods accounted for 62.7% of the dietary THg exposure. Cereals and vegetables were the primary source of THg exposure. The MeHg concentration in aquatic foods was 0.08 mg/kg, and the average dietary exposure was 3.8 μg/day. Monte Carlo simulations of the dietary exposure risk assessment of THg and MeHg showed that approximately 6.4 and 7.0% of residents exceeded the health-based guidance value set by the European Food Safety Authority, with higher exposure risk in Southwest and South China. The nationwide target hazard quotient index of THg was greater than 1, suggesting that the non-carcinogenic risk of dietary exposure to THg needed further concern. In summary, this study has a comprehensive understanding of dietary Hg exposure risks across China, which provide a data basis for Hg exposure risk assessment and policy formulation.
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Affiliation(s)
- Ying Qing
- Shanghai University of Medicine & Health Sciences, Shanghai, 201318, China
| | - Yongzhen Li
- Children's hospital affiliated to Fudan University, Shanghai, 201102, China
| | - Jiaqi Yang
- School of Public Health/Key Laboratory of Public Health Safety, Ministry of Education, Department of Nutrition and Food Science, Fudan University, Shanghai, 200032, China
| | - Shichun Li
- Shanghai University of Medicine & Health Sciences, Shanghai, 201318, China
| | - Kaixin Gu
- Shanghai University of Medicine & Health Sciences, Shanghai, 201318, China
| | - Yunxia Bao
- Shanghai University of Medicine & Health Sciences, Shanghai, 201318, China
| | - Yuhao Zhan
- Shanghai University of Medicine & Health Sciences, Shanghai, 201318, China
| | - Kai He
- Shanghai University of Medicine & Health Sciences, Shanghai, 201318, China
| | - Xiaoying Wang
- Shanghai University of Medicine & Health Sciences, Shanghai, 201318, China
| | - Yanfei Li
- Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, 201300, China.
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Yuan CS, Lee CE, Ie IR, Chiang KC, Tseng YL, Wong KW. Seasonal variation and source identification of atmospheric speciated mercury in an industrial harbor area in East Asia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 815:152785. [PMID: 34990687 DOI: 10.1016/j.scitotenv.2021.152785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 12/23/2021] [Accepted: 12/26/2021] [Indexed: 06/14/2023]
Abstract
In this study, the pollution characteristics, spatiotemporal variation, and potential sources of atmospheric speciated mercury (ASM) in an industrial harbor area were explored. Gaseous elemental mercury (GEM), gaseous oxidized mercury (GOM), and particle-bound mercury (PBM) were sampled by a self-designed manual system at three harbor sites in four seasons. The yearly average concentrations of GEM, GOM, and PBM were 6.7 ± 2.0 ng/m3, 244 ± 70 pg/m3, and 410 ± 105 pg/m3, respectively. The seasonal average ASM concentration was in the order of: winter > fall > spring > summer. In terms of species, GEM dominated ASM, while reactive mercury (RM = GOM + PBM) accounted for 6.0-15.7%of ASM, implying that ASM was governed by anthropogenic sources in the harbor area. The highest ASM concentrations were observed at Site Zhonghe (ZH), which is mainly influenced by both ship exhausts and industrial emissions, and positively correlated with CO, NOx, and SO2. In particular, GOM was positively correlated with O3, and negatively correlated with air temperature and relative humidity, showing high impact from atmospheric photochemical reactions. Air masses transporting westerly in spring were mainly from ship exhausts. In summer, air masses transporting from the south were from utility power plants and machinery exhausts. In fall and winter, air masses were transported mainly from the north, blowing by the long-range transport of polluted air masses originated from the north. Both principal component analysis and positive matrix factorization results indicate that coal burning, industrial emissions, and vehicular exhausts are the main contributors to ASM. Site Zhongdao (ZD) was close to the bulk carrier loading and unloading zones and was highly influenced by mobile sources, while Site ZH was mainly influenced by the neighboring industrial complex.
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Affiliation(s)
- Chung-Shin Yuan
- Institute of Environmental Engineering, National Sun Yat-Sen University, 70, Lian-Hai Road, Kaohsiung 804, Taiwan, ROC.
| | - Cheng-En Lee
- Institute of Environmental Engineering, National Sun Yat-Sen University, 70, Lian-Hai Road, Kaohsiung 804, Taiwan, ROC
| | - Iau-Ren Ie
- Institute of Environmental Engineering, National Sun Yat-Sen University, 70, Lian-Hai Road, Kaohsiung 804, Taiwan, ROC
| | - Kuan-Chen Chiang
- Institute of Environmental Engineering, National Sun Yat-Sen University, 70, Lian-Hai Road, Kaohsiung 804, Taiwan, ROC
| | - Yu-Lun Tseng
- Institute of Environmental Engineering, National Sun Yat-Sen University, 70, Lian-Hai Road, Kaohsiung 804, Taiwan, ROC
| | - Kwok-Wai Wong
- Institute of Environmental Engineering, National Sun Yat-Sen University, 70, Lian-Hai Road, Kaohsiung 804, Taiwan, ROC
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Aslam MW, Meng B, Abdelhafiz MA, Liu J, Feng X. Unravelling the interactive effect of soil and atmospheric mercury influencing mercury distribution and accumulation in the soil-rice system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 803:149967. [PMID: 34482140 DOI: 10.1016/j.scitotenv.2021.149967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/24/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Mercury (Hg) accumulation in rice is an emerging health concern worldwide. However, sources and interactions responsible for Hg species accumulation in different rice tissues are still uncertain. Four experimental plots were carefully designed at an artisanal Hg mining site and a control site to evaluate the effect of atmospheric and soil Hg contents on Hg accumulation in rice. We showed that inorganic Hg (IHg) contents in rice tissues grown either in contaminated or control site soil (non-contaminated soil) were higher at Hg artisanal mining site than those at the control site. Elevated total gaseous mercury (TGM) levels in ambient air were the predominant source of IHg to rice at the Hg mining area. Methylmercury (MeHg) concentrations in rice plant tissues increased in proportionality with MeHg contents in paddy soil. Our results suggest that both atmosphere and soil Hg sources have been impacted the IHg accumulation in rice. Above ground rice tissues, grains, leaves, and stalk accumulated IHg from both atmosphere and soil to varying degrees. Nonetheless, the study also provides the first direct evidence that atmospheric Hg accumulated by above-ground rice tissues could be translocated to below-ground tissues (roots). However, the extent to which atmosphere or soil Hg contributes to IHg in rice tissues may vary with each source's concentration gradient at the given site. No evidence of in planta Hg methylation was found during the current study. Hence, paddy fields are potential MeHg production sites, whereas paddy soil is a unique MeHg accumulation source in rice plants. This study expands and clarifies the contribution of various sources involved in Hg accumulation in the soil rice system. The findings here provide the basis for future research strategies to deal with the global issue of Hg contaminated rice.
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Affiliation(s)
- Muhammad Wajahat Aslam
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, PR China
| | - Bo Meng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, PR China.
| | - Mahmoud A Abdelhafiz
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Geology Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Jiang Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, PR China
| | - Xinbin Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, PR China; Center for Excellence in Quaternary Science and Global Change, Chinese Academy of Sciences, Xian 710061, PR China.
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Wang L, Han J, Katuwal HB, Xia P, Xu X, Feng X, Qiu G. Occurrence of total mercury and methylmercury in rice: Exposure and health implications in Nepal. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 228:113019. [PMID: 34823213 DOI: 10.1016/j.ecoenv.2021.113019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/08/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
Emerging studies have indicated that the consumption of rice could be the major methylmercury (MeHg) contributor to human mercury (Hg) exposure. Nonetheless, few studies are available on Hg in rice around the world, especially in countries with heavy rice diet. In this study, total Hg (THg) and MeHg levels in rice samples (n = 172) across Nepal were first investigated. The geometric mean THg was 7.05 ± 7.71 µg/kg with a range of 0.622 µg/kg to 158 µg/kg, and the maximum THg level was up to 791% of the Chinese National Standard Limit for THg in rice (20 µg/kg). The geometric mean MeHg was 0.820 ± 0.660 µg/kg with a range of 0.189 µg/kg to 8.59 µg/kg. Overall, the mean MeHg exposure (0.00445 ± 0.00477 µg/kg bw/day) and inorganic Hg (IHg) exposure (0.0360 ± 0.0739 µg/kg bw/day) were lower than the reference dose (RfD) of 0.1 µg/kg bw/day for MeHg and the provisional tolerable weekly intake (PTWI) of 0.571 µg/kg bw/day for IHg, respectively. Concerning different groups of vulnerable populations, the highest MeHg exposure (0.126 µg/kg bw/day) and IHg exposure (1.57 µg/kg bw/day) of preschoolers (37-50 months old) were approximately 126% of the RfD for MeHg and 275% of the PTWI for IHg. When the pregnant mothers eat the rice without awareness of the Hg content in rice, the mean and highest intelligence quotients (IQs) losses were 9554 and 118659 points, respectively, and the corresponding economic costs due to IQ loss could be 15.1 million USD and 188 million USD in Nepal. The results of rice THg and MeHg levels and corresponding exposure in populations highlighted the occurrence of rice THg and MeHg pollution issues in Nepal. More efforts should be made to protect younger groups in Nepal from high rice Hg exposure. CAPSULE: Owing to the high rice consumption rates relative to body mass, preschoolers (37-50 months) may meet the 126% reference dose (0.1 µg/kg bw/day) for MeHg and 275% provisional tolerable weekly intake (0.571 µg/kg bw/day) for IHg exposure in Nepal.
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Affiliation(s)
- Le Wang
- Guizhou Province Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang 550001, China
| | - Jialiang Han
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hem Bahadur Katuwal
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - Pinhua Xia
- Guizhou Province Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang 550001, China.
| | - Xiaohang Xu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang 550025, China; College of Resources and Environment Engineering, Guizhou University, Guiyang 550025, China.
| | - Xinbin Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Guangle Qiu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
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Barone G, Storelli A, Quaglia NC, Garofalo R, Meleleo D, Busco A, Storelli MM. Trace Metals in Pork Meat Products Marketed in Italy: Occurrence and Health Risk Characterization. Biol Trace Elem Res 2021; 199:2826-2836. [PMID: 33184739 PMCID: PMC8222035 DOI: 10.1007/s12011-020-02417-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/30/2020] [Indexed: 11/07/2022]
Abstract
This study provides valuable information on the levels of various trace metals (Pb, Cd, Hg, Zn, Cu, Cr) in meat products (baked ham, raw ham, mortadella, cured sausage, würstel, salami) from South Italy and calculates potential health risk toxicity associated with their consumption for the total population and for children. In the samples studied metal concentrations are within the permissible legal limits (Cd: 0.01-0.03 μg g-1 w.w., Hg: 0.01-0.02 μg g-1 w.w., Zn: 5.71-7.32 μg g-1 w.w., Cu: 1.08-1.21 μg g-1 w.w., Cr: 0.15-0.23 μg g-1 w.w.), except for Pb (Pb: 0.22-0.38 μg g-1 w.w.). The estimated intake values are within the provisional tolerable daily intake limits for toxic metals and recommended daily intake values for essential metals in both tested groups. The noncarcinogenic risk values of the individual metals indicate that there is no health risk, but their combined effects might constitute a potential risk for children. Furthermore, the cumulative cancer risk of all samples studied exceeds the recommended threshold risk limit (> 10-4) in both total population and children, indicating a risk of potential health problems for consumers especially for children, who are more vulnerable to toxic metal exposure.
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Affiliation(s)
- Grazia Barone
- Biosciences, Biotechnology and Biopharmaceutical Department, University of Bari, Strada Prov.le per Casamassima Km 3, 70010, Valenzano (BA), Italy
| | - Arianna Storelli
- Biosciences, Biotechnology and Biopharmaceutical Department, University of Bari, Strada Prov.le per Casamassima Km 3, 70010, Valenzano (BA), Italy
| | - Nicoletta C Quaglia
- Department of Emergency and Organ Transplant, University of Bari "Aldo Moro", Strada Prov.le per Casamassima Km 3, 70010, Valenzano (BA), Italy
| | - Rita Garofalo
- Biosciences, Biotechnology and Biopharmaceutical Department, University of Bari, Strada Prov.le per Casamassima Km 3, 70010, Valenzano (BA), Italy
| | - Daniela Meleleo
- Biosciences, Biotechnology and Biopharmaceutical Department, University of Bari, Strada Prov.le per Casamassima Km 3, 70010, Valenzano (BA), Italy
| | - Antonio Busco
- Biosciences, Biotechnology and Biopharmaceutical Department, University of Bari, Strada Prov.le per Casamassima Km 3, 70010, Valenzano (BA), Italy
| | - Maria Maddalena Storelli
- Biosciences, Biotechnology and Biopharmaceutical Department, University of Bari, Strada Prov.le per Casamassima Km 3, 70010, Valenzano (BA), Italy.
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Windus JL, Burrows TL, Duncanson K, Collins CE, Rollo ME. Scoping review of nutrition intervention and dietary assessment studies in Khmer populations living in Cambodia. J Hum Nutr Diet 2021; 34:953-968. [PMID: 34231266 DOI: 10.1111/jhn.12932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 06/04/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND This scoping review aims to describe the body of nutrition intervention and dietary assessment research undertaken with Khmer populations in Cambodia, as well as summarise the nutrition knowledge base and highlight priority areas for future research. METHODS Five databases and the grey literature were searched, following PRISMA-ScR guidelines. Studies involving dietary assessment or nutrition interventions published after 1992 were identified using specific search terms and extracted to a customised data extraction table for categorisation and analysis. Study participants were Khmer people of any age and gender, living in rural or urban Cambodia. RESULTS Of the 100 included studies, 58 were dietary assessment only studies, 24 were nutrition interventions only, and 18 studies involved both assessment of intake and an intervention. Sixty-eight percent of study populations were mothers and young children, of which 52 studies focused on children aged under 5 years. Nineteen interventions involved supplementation and six trialled fortification of rice or fish sauce. Anaemia was the most common nutrition condition studied (n = 17), followed by malnutrition (n = 15) and malnutrition risk factors (n = 11). General nutrition status was explored in 25 studies, and individual micronutrients that were studied included iron (n = 27), zinc (n = 6), vitamin A (n = 4) and thiamine (n = 3). CONCLUSIONS Diet-related research in Khmer populations in Cambodia has predominantly focused on dietary assessment or evaluation of interventions aimed at reducing malnutrition and resolving micronutrient deficiencies. Areas identified as emerging needs included non-communicable diseases, the ageing population and non-iron deficiency anaemia.
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Affiliation(s)
- Janelle L Windus
- Faculty of Health and Medicine, School of Health Sciences University of Newcastle, University Drive, Callaghan, NSW, Australia
| | - Tracy L Burrows
- Faculty of Health and Medicine, School of Health Sciences University of Newcastle, University Drive, Callaghan, NSW, Australia
| | - Kerith Duncanson
- Faculty of Health and Medicine, School of Health Sciences University of Newcastle, University Drive, Callaghan, NSW, Australia
| | - Clare E Collins
- Faculty of Health and Medicine, School of Health Sciences University of Newcastle, University Drive, Callaghan, NSW, Australia
| | - Megan E Rollo
- Faculty of Health and Medicine, School of Health Sciences University of Newcastle, University Drive, Callaghan, NSW, Australia
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Ngo HTT, Watchalayann P, Nguyen DB, Doan HN, Liang L. Environmental health risk assessment of heavy metal exposure among children living in an informal e-waste processing village in Viet Nam. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 763:142982. [PMID: 33129545 DOI: 10.1016/j.scitotenv.2020.142982] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/16/2020] [Accepted: 10/04/2020] [Indexed: 06/11/2023]
Abstract
This study was conducted to compare the exposure levels of five heavy metals via different pathways based on the field samplings and questionnaire surveys of children residing in an informal e-waste processing village and a reference village in Viet Nam. The findings revealed that levels of the total average daily intake (ADI) of the five heavy metals collected from a child at the exposed village were 3.90 times higher (p < 0.01) than that of a child at the reference village. Ingestion of cooked rice was the largest contributor to the total ADI of the children tested at both villages. However, the risks from water drinking and dermal contact of soil were negligible. The total non-carcinogenic risk and carcinogenic risk in an exposed child were significantly higher (p < 0.01) than their respective risks in a reference child. The non-carcinogenic risk to an exposed child was likely to occur, while the risk to a reference child was negligible. The carcinogenic risks found in children from both of the villages, however, were higher than the acceptable values, indicating the potential health risks to the children from both villages. The susceptibility of children to heavy metal contaminations shown in this study suggests that a mitigating measure need to be initiated jointly by a public agency and a private organization to prevent children from the risks of being exposed to the contaminants.
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Affiliation(s)
- Hien Thi Thu Ngo
- Department of Public Health, Thang Long University, Hanoi, Viet Nam.
| | - Pensri Watchalayann
- Faculty of Public Health, Thammasat University, Rangsit Campus, Pathum Thani, Thailand
| | - Diep Bich Nguyen
- The National Institute of Occupational and Environmental Health, Hanoi, Viet Nam
| | - Hai Ngoc Doan
- The National Institute of Occupational and Environmental Health, Hanoi, Viet Nam
| | - Li Liang
- Faculty of Public Health, Thammasat University, Rangsit Campus, Pathum Thani, Thailand.
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11
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Gao P, Mohd Noor NQI, Md Shaarani S. Current status of food safety hazards and health risks connected with aquatic food products from Southeast Asian region. Crit Rev Food Sci Nutr 2020; 62:3471-3489. [PMID: 33356490 DOI: 10.1080/10408398.2020.1866490] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Food safety issues associated with aquatic food products become more important with the increasing consumption and followed by its ongoing challenges. The objective of this paper is to review the food safety hazards and health risks related to aquatic food products for the Southeast Asian region. These hazards can be categorized as microplastics (MPs) hazard, biological hazards (pathogenic bacteria, biogenic amines, viruses, parasites), and chemical hazards (antimicrobial, formaldehyde, heavy metal). In different Southeast Asian countries, the potential health risks of aquatic food products brought by food hazards to consumers were at different intensity and classes. Among all these hazards, pathogenic bacteria, antimicrobials, and heavy metal were a particular concern in the Southeast Asian region. With environmental changes, evolving consumption patterns, and the globalization of trade, new food safety challenges are created, which put forward higher requirements on food technologies, food safety regulations, and international cooperation.
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Affiliation(s)
- Peiru Gao
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu, Sabah, Malaysia
| | | | - Sharifudin Md Shaarani
- Food Biotechnology Programme, Faculty of Science and Technology, Universiti Sains Islam Malaysia, Nilai, Negeri Sembilan, Malaysia
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12
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Wang Y, Habibullah-Al-Mamun M, Han J, Wang L, Zhu Y, Xu X, Li N, Qiu G. Total mercury and methylmercury in rice: Exposure and health implications in Bangladesh. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114991. [PMID: 32574891 DOI: 10.1016/j.envpol.2020.114991] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 06/05/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
Rice methylmercury (MeHg) contamination has attracted global attention, especially in countries where rice is considered a staple food. The daily rice intake rate in Bangladesh ranks first in the world; however, no attention has been paid to rice MeHg contamination in Bangladesh. Total Hg (THg) and MeHg concentrations of commercial rice (n = 172) from Bangladesh were first analyzed to accurately evaluate both rice MeHg and inorganic Hg (IHg) exposure in different age-gender groups of Bangladeshis. The corresponding adverse health impacts and associated economic loss were also assessed. The results showed that THg concentration in all samples ranged from 0.42 to 14.4 ng/g, with an average of 2.48 ± 1.41 ng/g, while the MeHg concentration ranged from 0.026 to 7.47 ng/g, with an average of 0.83 ± 0.60 ng/g. The highest average MeHg and IHg were both recorded in rice from Chittagong. The highest mean MeHg and IHg exposures were observed in 2-5 years-old group and were 16.2% of the reference dose (RfD) of 0.1 μg/kg/day for MeHg and 7.09% of the provisional tolerable weekly intake (PTWI) of 0.571 μg/kg/day for IHg. Surprisingly, MeHg exposure of the 2-5 year-old children could be up to 93.7% of the RfD at a high percentile (P99.9). The total intelligence quotient reduction caused by rice MeHg exposure could be 54700 points, and the associated economic loss is approximately 42.5 million USD. To avoid high rice MeHg exposure, it was suggested that diet structure be improved. More attention should be paid to residents with long-term rice MeHg exposure, especially children in the 2-5 year-old group.
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Affiliation(s)
- Yajie Wang
- College of Food Science, Guizhou Medical University, Guiyang, 550025, China
| | - Md Habibullah-Al-Mamun
- Department of Fisheries, Faculty of Biological Sciences, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Jialiang Han
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Le Wang
- Guizhou Province Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China; Plateau Wetland Ecology and Environment Research Center, Guizhou Normal University, Guiyang, 550001, China
| | - Yaru Zhu
- College of Resource & Environment, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xiaohang Xu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Ning Li
- National Grid Ningxia Electric Power Co., Ltd, Yinchuan Institute of Economy and Technology, Yinchuan, 750002, China
| | - Guangle Qiu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
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13
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Ricketts P, Voutchkov M, Chan HM. Risk-Benefit Assessment for Total Mercury, Arsenic, Selenium, and Omega-3 Fatty Acids Exposure from Fish Consumption in Jamaica. Biol Trace Elem Res 2020; 197:262-270. [PMID: 31713772 DOI: 10.1007/s12011-019-01965-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 10/29/2019] [Indexed: 12/27/2022]
Abstract
Fish is important in the traditional diet of Jamaicans, and the fishing industry contributes to social and economic development, as well as food security in Jamaica. However, there are associated health risks from contaminant exposure. The aim of this paper was to use risk-benefit analysis methods to determine the best fish species for consumption. Composite samples consisting of 14 fish species were collected from major fishing villages in 2016 and measured for total mercury, arsenic, selenium, and omega-3 fatty acids (EPA and DHA). Food frequency questionnaires were randomly distributed to 400 participants from different locations on the island. Participants were asked to identify the types of fish, portion size, and the frequency of consumption. An estimate of their weight was also recorded. Total mercury concentrations in fish samples ranged from 0.003 to 0.215 μg/g. The range of arsenic concentrations was 0.11 to 7.8 μg/g. The range of selenium concentrations was 0.302 μg/g to 1.08 μg/g. The mean omega-3 fatty acid concentration was 123.1 ± 93.6 mg/100 g. The fish consumption rates range from 3.2 to 1132.8 g/day. Cod fish was the most consumed species at 23.2 g/day. Four risk-benefit analysis methods were able to recommend four fish species that were best for consumption based on the levels of mercury, arsenic, selenium, and omega-3 fatty acids. They were doctorfish, parrotfish, snappers, and cod fish. The results of this study concluded that there was a low risk of mercury exposure from fish consumed in Jamaica.
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Affiliation(s)
- Phylicia Ricketts
- Department of Physics, Radioecological Laboratory, The University of the West Indies Mona campus, Kingston, Jamaica.
| | - Mitko Voutchkov
- Department of Physics, Radioecological Laboratory, The University of the West Indies Mona campus, Kingston, Jamaica
| | - Hing Man Chan
- Department of Biology, University of Ottawa, Ottawa, Canada
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14
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Zhao X, Ma L, Qu P, Yue B, Zhao X, Shang X, Zhao Y, Wu Y. Total mercury and methylmercury in Chinese rice and dietary exposure assessment. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2020; 13:148-153. [PMID: 32208916 DOI: 10.1080/19393210.2020.1741690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Total mercury levels and methylmercury levels were investigated for various grain parts (whole rice, rice husk, brown rice, polished rice, and bran) of 507 rice samples from 15 main rice-producing areas of China. The average total mercury contents in brown rice samples and polished rice samples were 4.2 and 3.3 μg/kg, respectively, the percentages exceeding the national standard limit were 0.59% and 0.39%, respectively. The average methylmercury levels were 2.9 and 2.4 μg/kg in brown rice and polished rice, respectively. The order of total mercury contents in different parts of rice was bran > brown rice > whole rice > rice husk > polished rice, and the order for methylmercury was bran > brown rice > whole rice > polished rice > rice husk. Total mercury intakes and methylmercury intakes were estimated for the Chinese population and the associated health risks were assessed.
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Affiliation(s)
- Xin Zhao
- The Key Laboratory of Food Safety Risk Assessment, Ministry of Health (CFSA) and China National Center for Food Safety Risk Assessment , Beijing, China
| | - Lan Ma
- The Key Laboratory of Food Safety Risk Assessment, Ministry of Health (CFSA) and China National Center for Food Safety Risk Assessment , Beijing, China
| | - Pengfeng Qu
- The Key Laboratory of Food Safety Risk Assessment, Ministry of Health (CFSA) and China National Center for Food Safety Risk Assessment , Beijing, China
| | - Bing Yue
- The Key Laboratory of Food Safety Risk Assessment, Ministry of Health (CFSA) and China National Center for Food Safety Risk Assessment , Beijing, China
| | - Xiaoxue Zhao
- The Key Laboratory of Food Safety Risk Assessment, Ministry of Health (CFSA) and China National Center for Food Safety Risk Assessment , Beijing, China
| | - Xiaohong Shang
- The Key Laboratory of Food Safety Risk Assessment, Ministry of Health (CFSA) and China National Center for Food Safety Risk Assessment , Beijing, China
| | - Yunfeng Zhao
- The Key Laboratory of Food Safety Risk Assessment, Ministry of Health (CFSA) and China National Center for Food Safety Risk Assessment , Beijing, China
| | - Yongning Wu
- The Key Laboratory of Food Safety Risk Assessment, Ministry of Health (CFSA) and China National Center for Food Safety Risk Assessment , Beijing, China
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15
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Wang J, Shaheen SM, Anderson CWN, Xing Y, Liu S, Xia J, Feng X, Rinklebe J. Nanoactivated Carbon Reduces Mercury Mobility and Uptake by Oryza sativa L: Mechanistic Investigation Using Spectroscopic and Microscopic Techniques. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:2698-2706. [PMID: 32045518 DOI: 10.1021/acs.est.9b05685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mercury (Hg) contamination of paddy field poses a health risk to rice consumers, and its remediation is a subject of global scientific attention. In recent years focus has been given to in situ techniques which reduce the risk of Hg entering the food chain. Here, we investigate the use of nanoactivated carbon (NAC) as a soil amendment to minimize Hg uptake by rice plants. Application of 1-3% NAC to soil (by weight) reduced Hg concentration in the pore water (by 61-76%) and its bioaccumulation in the tissues of rice plants (by 15-63%), relative to the corresponding control. Specifically, NAC reduced the Hg concentration of polished rice by 47-63% compared to the control, to a level that was 29-49% lower than the food safety value (20 ng g-1) defined by the Chinese government. The NAC induced a change in Hg binding from organic matter to nano-HgS in the soil as a function of soil amendment. This Hg speciation transformation might be coupled to the reduction of sulfoxide to reduced sulfur species (S0) by NAC. The NAC amendment may be a practical and effective solution to mitigate the risk of Hg transferring from contaminated soil to rice grains at locations around the world.
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Affiliation(s)
- Jianxu Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550081 Guiyang, P. R. China
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
- CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, P. R. China
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
- King Abdulaziz University, Faculty of Meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, Jeddah 21589, Kingdom of Saudi Arabia
- University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33516 Kafr El-Sheikh, Egypt
| | - Christopher W N Anderson
- Environmental Sciences, School of Agriculture and Environment, Massey University, 4442 Palmerston North, New Zealand
| | - Ying Xing
- School of Chemistry and Materials Science, Guizhou Normal University, 550001 Guiyang, P. R. China
| | - Shirong Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550081 Guiyang, P. R. China
| | - Jicheng Xia
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550081 Guiyang, P. R. China
| | - Xinbin Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550081 Guiyang, P. R. China
- CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, P. R. China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
- University of Sejong, Department of Environment, Energy and Geoinformatics, 98 Gunja-Dong, Guangjin-Gu, Seoul 05006, Republic of Korea
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16
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Novirsa R, Dinh QP, Jeong H, Addai-Arhin S, Nugraha WC, Hirota N, Wispriyono B, Ishibashi Y, Arizono K. The dietary intake of mercury from rice and human health risk in artisanal small-scale gold mining area, Indonesia. ACTA ACUST UNITED AC 2020. [DOI: 10.2131/fts.7.215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Randy Novirsa
- Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Quang Phan Dinh
- Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Huiho Jeong
- Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Sylvester Addai-Arhin
- Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Willy Cahya Nugraha
- Graduate School of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Nana Hirota
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Bambang Wispriyono
- Department of Environmental Health, Faculty of Public Health, University of Indonesia
| | - Yasuhiro Ishibashi
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
| | - Koji Arizono
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto
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17
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Xu X, Han J, Abeysinghe KS, Atapattu AJ, De Silva PMCS, Xu Z, Long S, Qiu G. Dietary exposure assessment of total mercury and methylmercury in commercial rice in Sri Lanka. CHEMOSPHERE 2020; 239:124749. [PMID: 31505443 DOI: 10.1016/j.chemosphere.2019.124749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 08/28/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Methylmercury (MeHg) in rice has attracted growing health concern over the past decade, due to the accumulation of high MeHg levels, which may pose potential health risk to humans. Rice is the staple food in Sri Lanka; nevertheless, the presence of micro pollutants, such as MeHg has been not investigated. Therefore, commercial rice samples from the Sri Lankan market (n = 163) were measured to reveal the total mercury (THg) and MeHg levels. THg (mean: 1.73 ± 0.89 ng/g, range: 0.21-6.13 ng/g) and MeHg concentrations (mean: 0.51 ± 0.37 ng/g; range: 0.03-3.81 ng/g) were low. Compared to the fish MeHg exposure, the rice MeHg exposure was generally lower in different consumption groups, suggesting that rice plays a less role than fish in MeHg exposure in Sri Lanka. Babies (infants and toddlers) at one year old may face fish MeHg exposure (0.17 μg/kg bw/day) higher than the reference dose for MeHg (RfD)-0.1 μg/kg bw/day, which was more than 5 times that of rice MeHg exposure (0.031 μg/kg bw/day). Future studies in Sri Lanka should focus on health impacts under long-term overexposure of MeHg, especially in vulnerable populations. Some diet changes should be made to mitigate MeHg exposure levels in Sri Lankans.
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Affiliation(s)
- Xiaohang Xu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jialiang Han
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kasun S Abeysinghe
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Anjana J Atapattu
- University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan, 666303, China; Agronomy Division, Coconut Research Institute, Lunuwila, 61150, Sri Lanka
| | | | - Zhidong Xu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | | | - Guangle Qiu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
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18
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Raj D, Maiti SK. Sources, toxicity, and remediation of mercury: an essence review. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:566. [PMID: 31418123 DOI: 10.1007/s10661-019-7743-2] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 08/06/2019] [Indexed: 05/27/2023]
Abstract
Mercury (Hg) is a pollutant that poses a global threat, and it was listed as one of the ten leading 'chemicals of concern' by the World Health Organization in 2017. The review aims to summarize the sources of Hg, its combined effects on the ecosystem, and its remediation in the environment. The flow of Hg from coal to fly ash (FA), soil, and plants has become a serious concern. Hg chemically binds to sulphur-containing components in coal during coal formation. Coal combustion in thermal power plants is the major anthropogenic source of Hg in the environment. Hg is taken up by plant roots from contaminated soil and transferred to the stem and aerial parts. Through bioaccumulation in the plant system, Hg moves into the food chain, resulting in potential health and ecological risks. The world average Hg concentrations reported in coal and FA are 0.01-1 and 0.62 mg/kg, respectively. The mass of Hg accumulated globally in the soil is estimated to be 250-1000 Gg. Several techniques have been applied to remove or minimize elevated levels of Hg from FA, soil, and water (soil washing, selective catalytic reduction, wet flue gas desulphurization, stabilization, adsorption, thermal treatment, electro-remediation, and phytoremediation). Adsorbents such as activated carbon and carbon nanotubes have been used for Hg removal. The application of phytoremediation techniques has been proven as a promising approach in the removal of Hg from contaminated soil. Plant species such as Brassica juncea are potential candidates for Hg removal from soil.
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Affiliation(s)
- Deep Raj
- Ecological Restoration Laboratory, Department of Environmental Science & Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, 826 004, India
| | - Subodh Kumar Maiti
- Ecological Restoration Laboratory, Department of Environmental Science & Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, 826 004, India.
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19
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Zhao H, Yan H, Zhang L, Sun G, Li P, Feng X. Mercury contents in rice and potential health risks across China. ENVIRONMENT INTERNATIONAL 2019; 126:406-412. [PMID: 30826619 DOI: 10.1016/j.envint.2019.02.055] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/21/2019] [Accepted: 02/21/2019] [Indexed: 05/08/2023]
Abstract
Rice samples were collected at 560 sites in 15 provinces across China in areas without known point mercury (Hg) sources. Total mercury (THg) and methylmercury (MeHg) concentrations were analyzed in these rice samples for risk assessment. Relatively low THg and MeHg concentrations were found in the majority of the white rice samples with an overall mean of 4.74 (1.06-22.7) μg kg-1 and 0.682 (0.03-8.71) μg kg-1, respectively. The means (range of) THg concentration of rice in each geographical region were 5.23 (1.07-19.5) μg kg-1, 5.14 (1.06-17.2) μg kg-1, 4.45 (1.41-17.2) μg kg-1, 4.20 (1.48-19.4) μg kg-1, 3.49 (1.49-10.7) μg kg-1, and 4.53 (1.30-19.4) μg kg-1 in east, centre, south, southwest, northwest and northeast, China, respectively, and the corresponding values for MeHg concentrations were 0.898 (0.127-8.35) μg kg-1, 0.603 (0.207-2.48) μg kg-1, 0.516 (0.032-1.50) μg kg-1, 0.615 (0.050-5.03) μg kg-1, 0.704 (0.148-2.41) μg kg-1 and 0.565 (0.035-8.71) μg kg-1, respectively. Hg contents in rice across China were found to be at background levels. Both the probable daily intakes (PDIs) of inorganic Hg (IHg) and MeHg from rice consumption showed low risks for general population in the investigated regions.
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Affiliation(s)
- Huifang Zhao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Haiyu Yan
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Leiming Zhang
- Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, M3H5T4, Canada
| | - Guangyi Sun
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Ping Li
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
| | - Xinbin Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
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20
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Han J, Chen Z, Pang J, Liang L, Fan X, Li Q. Health Risk Assessment of Inorganic Mercury and Methylmercury via Rice Consumption in the Urban City of Guiyang, Southwest China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16020216. [PMID: 30646539 PMCID: PMC6352273 DOI: 10.3390/ijerph16020216] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/29/2018] [Accepted: 01/08/2019] [Indexed: 11/28/2022]
Abstract
Rice consumption is the main methylmercury (MeHg) exposure route for residents in mercury (Hg) mining areas. However, there is limited studies on mercury in commercial rice, which has high liquidity and can be directly consumed by urban residents. This study measured the total Hg (THg) and MeHg concentrations in 146 rice samples purchased from the markets in Guiyang city, southwest China, and both the inorganic Hg (IHg) and MeHg estimated daily intakes (EDIs) and hazard quotients (HQs) were calculated according to rice consumption. The THg concentrations in all rice samples (range: 0.97 to 13.10 μg·kg−1; mean: 3.88 μg·kg−1) were lower than the Chinese national standard (20 μg·kg−1). The average MeHg concentration in rice was 1.16 μg·kg−1. The total HQs (THQs) ranged from 0.0106 to 0.1048, with a mean of 0.0462, which was far lower than 1. This result suggests that there were low Hg exposure levels through consumption of commercial rice in residents of Guiyang.
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Affiliation(s)
- Jialiang Han
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550003, China.
| | - Zhuo Chen
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, China.
| | - Jian Pang
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, China.
| | - Longchao Liang
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550003, China.
| | - Xuelu Fan
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, China.
| | - Qiuhua Li
- Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang 550001, China.
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21
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Kelly BC, Myo AN, Pi N, Bayen S, Leakhena PC, Chou M, Tan BH. Human exposure to trace elements in central Cambodia: Influence of seasonal hydrology and food-chain bioaccumulation behaviour. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 162:112-120. [PMID: 29990722 DOI: 10.1016/j.ecoenv.2018.06.071] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 06/19/2018] [Accepted: 06/25/2018] [Indexed: 06/08/2023]
Abstract
Exposure to mercury and other trace elements remains an important public health concern, worldwide. The present study involved a comprehensive field study to determine concentrations of fourteen trace elements (Al, As, Cr, Co, Cd, Cu, Fe, Hg, Mn, Ni, Pb, Se, V and Zn) in surface water and different fish species from Tonlé Sap Lake in central Cambodia, during both the dry and wet seasons. Total arsenic (tAs) and Mn in surface water during the dry season exceeded WHO drinking water guidelines. Total mercury (tHg) concentrations (µg/g wet wt.) in fish during the wet season (GM = 0.055; CI95 = 0.01-0.26) were approximately 15 times higher (P < 0.05) compared to those during the dry season (GM = 0.0035; CI95 = 0.0004-0.033). Mean target hazard quotients (THQs) for inorganic arsenic (iAs), methyl mercury (MeHg), Mn and Pb were > 1, with estimated maximum values greatly exceeding 1. Mean THQs of Zn, Cd, Ni and Se were very near 1, with estimated maximum values exceeding 1. The MeHg THQ (min-max range: 0.16-9.09) during the wet season was 7 times higher than in the dry season (min-max range: 0.05-1.35). Concentrations of Hg and other trace elements varied widely between fish species. The findings suggest that exposure of some trace elements via water and food is of concern in this region. High consumption rates of fish and rice key factors related to trace element exposure. Seasonal hydrology and species-specific bioaccumulation behaviour in the Tonlé Sap Lake watershed also play an important role. The generated information will be useful to better mitigate trace element exposure in this region.
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Affiliation(s)
- Barry C Kelly
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore.
| | - Aung Naing Myo
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore
| | - Na Pi
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore
| | - Stéphane Bayen
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore
| | - Phoeung Chan Leakhena
- Faculty of Pharmacy, University of Health Sciences of Cambodia, Phnom Penh, Cambodia
| | - Mondarin Chou
- Faculty of Pharmacy, University of Health Sciences of Cambodia, Phnom Penh, Cambodia
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Rim CH, Lee CW, Heo YS, Aieng R, Jun SY, Choi SH, Rim JS. Common Illnesses in Tropical Asia and Significance of Medical Volunteering. Open Med (Wars) 2018; 13:285-293. [PMID: 30090865 PMCID: PMC6077925 DOI: 10.1515/med-2018-0044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 06/08/2018] [Indexed: 11/18/2022] Open
Abstract
This study was conducted to provide practical information for actual preparation of medical volunteering in tropical Asia, mainly the distribution of common illnesses encountered during mission. From 2012 to 2017, we visited two rural areas of Eastern Cambodia for medical volunteering missions, Cham Lak and Khsoem. Neither area has electricity or public water. We classified the common cases encountered during missions into six groups (upper respiratory infection, gastroenteritis, vaginitis and/or cystitis, dermatitis, work-related pain and parasite prevention) and assessed the distribution. In Cham Lak and Khsoem, 558 and 371 people were treated, respectively. The most commonly encountered cases in children under age of 18 were upper respiratory infection, followed by parasite control and dermatitis, in both areas. There was no significant difference in distribution between the two areas. For adults, the most common illnesses in Cham Lak area were vaginitis and/or cystitis, followed by gastroenteritis and work-related pain. In Khsoem area, the common illnesses were work-related pain followed by gastroenteritis, and upper respiratory infection. The distribution between the two areas differed significantly (p <0.001). The difference might be due to the water source and main crops of agriculture. Successful preparation of a medical volunteering needs deep understanding of the destination community.
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Affiliation(s)
- Chai Hong Rim
- Department of Radiation Oncology, Ansan Hospital, Korea University College of Medicine, Ansan, Gyeonggi-do, Republic of Korea
| | | | - Young Soo Heo
- Department of Dermatology, Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | | | - Sung Yeon Jun
- Ansan Hospital, Korea University College of Medicine, Ansan, Gyeonggi-do, Republic of Korea
| | - Sung Hun Choi
- Department of Internal Medicine, Dongguk University Ilsan Hospital, College of Medicine, Ilsan, Republic of Korea
| | - Jae Suk Rim
- Department of Oral & Maxillofacial Surgery, Guro Hospital, 148 Gurodong-ro, Guro 2-dong, Guro-gu, Seoul, 08308, Republic of Korea
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Gong Y, Nunes LM, Greenfield BK, Qin Z, Yang Q, Huang L, Bu W, Zhong H. Bioaccessibility-corrected risk assessment of urban dietary methylmercury exposure via fish and rice consumption in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 630:222-230. [PMID: 29477821 DOI: 10.1016/j.scitotenv.2018.02.224] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 02/18/2018] [Accepted: 02/18/2018] [Indexed: 06/08/2023]
Abstract
The role of seafood consumption for dietary methylmercury (MeHg) exposure is well established. Recent studies also reveal that rice consumption can be an important pathway for dietary MeHg exposure in some Hg-contaminated areas. However, little is known about the relative importance of rice versus finfish in MeHg exposure for urban residents in uncontaminated areas. Especially, the lack of data on MeHg bioaccessibility in rice hinders accurately assessing MeHg exposure via rice consumption, and its importance compared to fish. By correcting commonly used risk models with quantified MeHg bioaccessibility, we provide the first bioaccessibility-corrected comparison on MeHg risk in rice and fish for consumers in non-contaminated urban areas of China, on both city- and province-scales. Market-available fish and rice samples were cooked and quantified for MeHg bioaccessibility. Methylmercury bioaccessibility in rice (40.5±9.4%) was significantly (p<0.05) lower than in fish (61.4±14.2%). This difference does not result from selenium content but may result from differences in protein or fiber content. Bioaccessibility-corrected hazard quotients (HQs) were calculated to evaluate consumption hazard of MeHg for consumers in Nanjing city, and Monte Carlo Simulations were employed to evaluate uncertainty and variability. Results indicate that MeHg HQs were 0.14 (P50) and 0.54 (P90). Rice consumption comprised 27.2% of the overall dietary exposure to MeHg in Nanjing, while fish comprised 72.8%. Employing our bioaccessibility data combined with literature parameters, calculated relative contribution to MeHg exposure from rice (versus fish) was high in western provinces of China, including Sichuan (95.6%) and Guizhou (81.5%), and low to moderate in eastern and southern provinces (Guangdong: 6.6%, Jiangsu: 17.7%, Shanghai: 15.1%, Guangxi: 20.6%, Jiangxi: 22.8% and Hunan: 25.9%). This bioaccessibility-corrected comparison of rice versus fish indicates that rice consumption can substantively contribute to dietary MeHg exposure risk for urban populations in Asia, and should be regularly included in dietary MeHg exposure assessment.
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Affiliation(s)
- Yu Gong
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, Jiangsu Province, People's Republic of China
| | - Luís M Nunes
- University of Algarve, Civil Engineering Research and Innovation for Sustainability Center, Faro, Portugal
| | - Ben K Greenfield
- Department of Environmental Sciences, Southern Illinois University Edwardsville, Edwardsville, IL 62026, USA
| | - Zhen Qin
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, Jiangsu Province, People's Republic of China
| | - Qianqi Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, Jiangsu Province, People's Republic of China
| | - Lei Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, Jiangsu Province, People's Republic of China
| | - Wenbo Bu
- Institute of Dermatology, Chinese Academy of Medical Sciences, Peking Union Medical College, Nanjing, Jiangsu Province, People's Republic of China
| | - Huan Zhong
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, Jiangsu Province, People's Republic of China; Environmental and Life Sciences Program (EnLS), Trent University, Peterborough, Ontario, Canada.
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Marín S, Pardo O, Sánchez A, Sanchis Y, Vélez D, Devesa V, Font G, Yusà V. Assessment of metal levels in foodstuffs from the Region of Valencia (Spain). Toxicol Rep 2018; 5:654-670. [PMID: 30003045 PMCID: PMC6040579 DOI: 10.1016/j.toxrep.2018.05.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 05/02/2018] [Accepted: 05/13/2018] [Indexed: 11/13/2022] Open
Abstract
Concentrations of lead, mercury, cadmium, arsenic, tin, copper and chromium were measured in a study carried out in 2010-2011. A total of 8100 food samples were collected and composite samples for 12 food groups were analysed for metal concentration levels. Metal levels were, in general, below the maximum levels set by the current European legislation. The fish group presented the highest Cd, Hg and As levels, whereas sweeteners and condiments group was the most contaminated food group by Pb, Cr and Sn and the meat group had the highest concentrations of Cu. The results of this study are generally similar to or lower than those observed in other studies conducted in other countries, except in the case of Hg, for which high values were obtained, mainly in swordfish. In addition, this survey confirms a decreasing tendency when compared with other studies carried out in Spain.
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Affiliation(s)
- Silvia Marín
- Food Safety Research Area, Foundation for the Promotion of Health and Biomedical Research of Valencia Region, FISABIO. Av. Catalunya, 21, 46020, Valencia, Spain
| | - Olga Pardo
- Food Safety Research Area, Foundation for the Promotion of Health and Biomedical Research of Valencia Region, FISABIO. Av. Catalunya, 21, 46020, Valencia, Spain
- Analytical Chemistry Department. University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Alfredo Sánchez
- Food Safety Research Area, Foundation for the Promotion of Health and Biomedical Research of Valencia Region, FISABIO. Av. Catalunya, 21, 46020, Valencia, Spain
| | - Yovana Sanchis
- Food Safety Research Area, Foundation for the Promotion of Health and Biomedical Research of Valencia Region, FISABIO. Av. Catalunya, 21, 46020, Valencia, Spain
| | - Dinoraz Vélez
- Institute of Agrochemical and Food Technology (IATA-CSIC). Av. Agustín Escardino no 7, 46980 Paterna, Valencia, Spain
| | - Vicenta Devesa
- Institute of Agrochemical and Food Technology (IATA-CSIC). Av. Agustín Escardino no 7, 46980 Paterna, Valencia, Spain
| | - Guillermina Font
- Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine Department, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Vicent Yusà
- Food Safety Research Area, Foundation for the Promotion of Health and Biomedical Research of Valencia Region, FISABIO. Av. Catalunya, 21, 46020, Valencia, Spain
- Analytical Chemistry Department. University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
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Meta-analysis of soil mercury accumulation by vegetables. Sci Rep 2018; 8:1261. [PMID: 29352200 PMCID: PMC5775204 DOI: 10.1038/s41598-018-19519-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 01/04/2018] [Indexed: 11/16/2022] Open
Abstract
Mercury pollution in soil poses serious risks to human health through consumption of contaminated vegetables. We used a meta-analysis to examine the mercury enrichment ability of different vegetables and the main factors affecting mercury uptake. We drew the following conclusions. (1) Plants with a lower bioconcentration factor (BCF) include cowpea, long bean, and radish, whereas plants with a higher BCF include green pepper, spinach, cabbage, and Chinese cabbage. (2) Leaf and cucurbit have the highest and lowest capacity, respectively, for mercury enrichment. (3) When soil pH is <6.5, mercury level uptake by the plant increases, whereas it decreases when the pH is >7.5, meaning that increased soil pH reduces mercury uptake in soil. (4) When soil organic matter (SOM) is lower than 20 g/kg, tuber plants have the highest and eggplant has the lowest mercury adsorption capacity, respectively. When SOM is 20–30 g/kg, cucurbit has the lowest and leaf the highest adsorption capacity, respectively. When SOM is higher than 30 g/kg, however, eggplant has the highest mercury adsorption capacity, but there were no significant differences among the five types of vegetables. We argue that this meta-analysis aids in selecting vegetables suitable for absorption of heavy metals from polluted soil.
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Muñoz O, Zamorano P, Garcia O, Bastías JM. Arsenic, cadmium, mercury, sodium, and potassium concentrations in common foods and estimated daily intake of the population in Valdivia (Chile) using a total diet study. Food Chem Toxicol 2017; 109:1125-1134. [DOI: 10.1016/j.fct.2017.03.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 03/14/2017] [Accepted: 03/15/2017] [Indexed: 12/29/2022]
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Al-Ansari EMAS, Abdel-Moati MAR, Yigiterhan O, Al-Maslamani I, Soliman Y, Rowe GT, Wade TL, Al-Shaikh IM, Helmi A, Kuklyte L, Chatting M, Al-Ansi Al-Yafei MA. Mercury accumulation in Lethrinus nebulosus from the marine waters of the Qatar EEZ. MARINE POLLUTION BULLETIN 2017; 121:143-153. [PMID: 28592359 PMCID: PMC5881578 DOI: 10.1016/j.marpolbul.2017.04.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 04/02/2017] [Accepted: 04/12/2017] [Indexed: 05/13/2023]
Abstract
Total mercury (THg) and methylmercury (MeHg) were recorded in the commercial demersal fish Lethrinus nebulosus, caught from six locations in Qatar EEZ (Exclusive Economic Zone). Concentrations of THg decreased in the order: liver˃muscle˃gonad. THg concentrations in fish tissue ranged from 0.016ppm in gonad to 0.855ppm (mgkg-1w/w) in liver tissues, while concentrations in muscle tissue ranged from 0.24 to 0.49ppm (mgkg-1w/w) among sampling sites. MeHg concentrations were used to validate food web transfer rate calculations. Intake rates were calculated to assess the potential health impact of the fish consumption. There is no major threat to human health from the presence of Hg in L. nebulosus, based upon reasonable consumption patterns, limited to no more than three meals of L. nebulosus per week.
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Affiliation(s)
| | - Mohamed A R Abdel-Moati
- Ministry of Municipality & Environment, Environmental Assessment Department, P.O. Box 39320, Doha, Qatar
| | - Oguz Yigiterhan
- Qatar University, Environmental Science Center, P.O. Box 2713, Doha, Qatar.
| | | | - Yousria Soliman
- Qatar University, Department of Biology and Environmental Science, P.O. Box 2713, Doha, Qatar
| | - Gilbert T Rowe
- Texas A&M University at Galveston Campus, Marine Biology Department, TX, USA
| | - Terry L Wade
- Texas A&M University at College Station, Geochemical and Environmental Research Group, TX, USA
| | - Ismail M Al-Shaikh
- Qatar University, Environmental Science Center, P.O. Box 2713, Doha, Qatar
| | - Ahmed Helmi
- Qatar University, Environmental Science Center, P.O. Box 2713, Doha, Qatar
| | - Ligita Kuklyte
- Texas A&M University at Galveston Campus, Marine Biology Department, TX, USA
| | - Mark Chatting
- Qatar University, Environmental Science Center, P.O. Box 2713, Doha, Qatar
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Al-Saleh I, Abduljabbar M. Heavy metals (lead, cadmium, methylmercury, arsenic) in commonly imported rice grains (Oryza sativa) sold in Saudi Arabia and their potential health risk. Int J Hyg Environ Health 2017; 220:1168-1178. [PMID: 28780210 DOI: 10.1016/j.ijheh.2017.07.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 07/21/2017] [Accepted: 07/21/2017] [Indexed: 11/17/2022]
Abstract
The levels of heavy metals (lead, cadmium, methylmercury and arsenic) were determined in 37 brands of imported rice commonly consumed in Saudi Arabia after soaking and rinsing with water, and their potential health risks to residents were estimated by three indices: hazard quotient (HQ), hazard index (HI) and cancer risk (CR). The mean levels of lead, cadmium, methylmercury and total arsenic in soaked (rinsed) rice grains were 0.034 (0.057), 0.015 (0.027), 0.004 (0.007) and 0.202 (0.183) μg/g dry weight, respectively. Soaking or rinsing rice grains with water decreased lead and cadmium levels in all brands to safe levels. All brands had total arsenic above the acceptable regulatory limits, irrespective of soaking or rinsing, and eight soaked and 12 rinsed brands contained methylmercury. The levels of all heavy metals except cadmium were above the acceptable regulatory limits when the rice was neither rinsed nor soaked. Weekly intakes of lead, cadmium, methylmercury and total arsenic from soaked (rinsed) grains were 0.638 (1.068), 0.279 (0.503), 0.271 (0.309) and 3.769 (3.407) μg/kg body weight (bw). The weekly intakes of lead and methylmercury from the consumption of one rinsed and two soaked rice brands respectively, exceeded the Provisional Tolerance Weekly Intake set by the Food and Agriculture Organization and the World Health Organization. The weekly intake of total arsenic for all brands was above the lowest benchmark dose lower confidence limit (BMDL01) level of 0.3μg/kg bw/d for an increased cancer risk set by European Food Safety Authority. Either soaking or rinsing grains before consumption can minimize the non-carcinogenic health risks to residents from cadmium and lead (HQ<1). Our local consumers, though, may experience health consequences from rice contaminated mainly with arsenic (HQ>1 all brands) and to a lesser extent with methylmercury (HQ>1 in 4 brands), even when soaked or rinsed with water before consumption. The combined non-carcinogenic effect of all metals expressed as HI was >1, including soaked or rinsed rice, with total arsenic the major contributor followed by methylmercury. CR for total arsenic, whether consuming soaked, rinsed, un-soaked or unrinsed grains, exceeded the acceptable level of 10-4. Long-term consumption of rice contaminated with heavy metals, particularly arsenic, can pose potential health risks to the local population, especially vulnerable groups (pregnant women, children, elderly and patients). More attention should thus be given to contaminated rice and preventive measures should be taken.
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Affiliation(s)
- Iman Al-Saleh
- Environmental Health Program, King Faisal Specialist Hospital & Research Centre, PO Box: 3354, Riyadh 11211, Saudi Arabia.
| | - Mai Abduljabbar
- Environmental Health Program, King Faisal Specialist Hospital & Research Centre, PO Box: 3354, Riyadh 11211, Saudi Arabia
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Strickman RJ, Mitchell CPJ. Accumulation and translocation of methylmercury and inorganic mercury in Oryza sativa: An enriched isotope tracer study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 574:1415-1423. [PMID: 27542632 DOI: 10.1016/j.scitotenv.2016.08.068] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/08/2016] [Accepted: 08/09/2016] [Indexed: 06/06/2023]
Abstract
Methylmercury (MeHg) accumulation in rice is an emerging human health issue, but uptake pathways and translocation into the grain remain poorly understood. We grew Oryza sativa plants in pots of wetland soil amended with an enriched mercury isotope (94.3% 200Hg) tracer, alongside unvegetated control pots, and assessed both ambient and tracer MeHg and inorganic Hg (IHg) concentrations in soil and plant tissues at three growth stages. Based on similar ratios of ambient:tracer MeHg concentrations in soil and plant tissues, we provide the first direct evidence that MeHg is first synthesized in saturated soil and subsequently translocated to rice grains. There is no evidence of in planta methylation of IHg, but significant losses of MeHg from plant tissues between flowering and maturity indicates likely in planta demethylation. In this greenhouse experiment, lower percent of tracer MeHg in vegetated soils at late growth stages suggests that rice plants reduce the net MeHg accumulation capacity of soils, although the mechanism remains unclear. For IHg, roots accumulated Hg from the soil, straw from the soil and the atmosphere, and grain almost entirely from the atmosphere. Management strategies that aim to reduce MeHg accumulation in rice should focus on mercury methylation in paddy soils, but IHg reductions will depend on regional controls of atmospheric Hg.
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Affiliation(s)
- R J Strickman
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Ontario M1C 1A4, Canada
| | - C P J Mitchell
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Ontario M1C 1A4, Canada.
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Andrew T, Francis E, Charles M, Irene N, Jesca N, Ocaido M, Drago K, Celsus S, Deborah A, Rumbeiha W. Risk estimates for children and pregnant women exposed to mercury-contaminated Oreochromis niloticus and Lates niloticus in Lake Albert Uganda. COGENT FOOD & AGRICULTURE 2016; 2:1228732. [PMID: 27722183 PMCID: PMC5039401 DOI: 10.1080/23311932.2016.1228732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 08/22/2016] [Indexed: 05/27/2023]
Abstract
Exposure to mercury contaminated fish predisposes populations particularly children and pregnant women to various health hazards including neurotoxicity, reproductive abnormalities and cognitive disorders. Earlier studies in the Lake Albert community have demonstrated the presence of mercury in Nile tilapia and Nile perch. However, the risk estimates for vulnerable groups such as Children and pregnant women is not well documented. Secondary data-set from previous studies were employed comprising family household size and fish consumption history, fish consumption quantity and frequency and mercury levels in fish species in comparison with FAO/WHO guidelines. Data collected was used to establish the hazard quotients (HQs) for the vulnerable group and the general population. A risk model was developed using iRISK to demonstrate the Disability Adjusted Life Years (DALYs) for eating different parts of the fish (muscle and bellyfat). HQ values (HQ = 2.05) above one for the vulnerable group were realized especially with Nile perch muscle. The highest DALYs (0.111) was obtained with tilapia muscle consumption. The study outcome reveals that vulnerable populations are at risk of non-carcinogenic complications. Therefore, there is a need for sensitization of the community especially the vulnerable groups about risks associated with consuming mercury-contaminated fish.
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Affiliation(s)
- Tamale Andrew
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Ejobi Francis
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Muyanja Charles
- Department of Food Technology and Nutrition, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Naigaga Irene
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Nakavuma Jesca
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Micheal Ocaido
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Kato Drago
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Sente Celsus
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Amulen Deborah
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Wilson Rumbeiha
- Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University of Science and Technology, Iowa, IA, USA
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Ricketts P, Basu N, Fletcher H, Voutchkov M, Bassaw B. Assessment of fish consumption and mercury exposure among pregnant women in Jamaica and Trinidad & Tobago. CHEMOSPHERE 2016; 164:462-468. [PMID: 27612166 DOI: 10.1016/j.chemosphere.2016.08.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/08/2016] [Accepted: 08/10/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Fish is an essential and traditional element in the diet of most Caribbean people. However it also contains methylmercury which can have severe effects on fetal neurodevelopment. The objective of this study was to assess the fish intake of a selected group of pregnant women from Jamaica and Trinidad & Tobago and evaluate prenatal mercury exposure, using the placenta as a biomarker. METHOD Food frequency questionnaires and placental samples were obtained from participating parturients at the time of delivery at the University Hospital of the West Indies in Kingston, Jamaica (N = 100, from November 2012 to March 2013) and the Mt Hope Women's hospital in St Joseph, Trinidad & Tobago (N = 30, in June 2015). The participants were asked to identify the species of fish and the frequency of consumption. Placental samples were analysed for mercury using cold vapour atomic absorption. RESULTS The fish consumption preferences for pregnant women, varies based on the marine fish catch production of each country. The main fish species that contributed to the highest estimated methylmercury exposure in Jamaica and Trinidad & Tobago were cod and shark, respectively. There was a weak association between maternal fish intake and placental mercury concentrations. The mean placental mercury concentrations in Jamaica and Trinidad & Tobago were 0.74 ± 0.5 μg/kg and 1.46 ± 0.6 μg/kg, wet weight respectively. CONCLUSION The results from this study showed an influence of Caribbean fish intake preferences on mercury exposure and thus a recommendation for continuous bio-monitoring for public health purposes.
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Affiliation(s)
- Phylicia Ricketts
- Faculty of Science & Technology, The University of the West Indies, Mona, Kingston 7, Jamaica.
| | - Niladri Basu
- Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, Quebec, Canada
| | - Horace Fletcher
- Faculty of Medical Sciences, The University of the West Indies, Mona, Kingston 7, Jamaica
| | - Mitko Voutchkov
- Faculty of Science & Technology, The University of the West Indies, Mona, Kingston 7, Jamaica
| | - Bharat Bassaw
- Faculty of Medical Sciences, The University of the West Indies, St. Augustine, Trinidad and Tobago
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Tao HC, Zhao KY, Ding WY, Li JB, Liang P, Wu SC, Wong MH. The level of mercury contamination in mariculture sites at the estuary of Pearl River and the potential health risk. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 219:829-836. [PMID: 27707601 DOI: 10.1016/j.envpol.2016.07.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 07/15/2016] [Accepted: 07/29/2016] [Indexed: 06/06/2023]
Abstract
In the present study, the Hg contamination in mariculture sites located at the estuary of Pearl River was to investigate with an attempt to analyse associated health risks of dietary exposure to both total mercury (THg) and methyl mercury (MeHg) in cultured fish and shellfish. The highest total mercury concentration (7.037 ± 0.556 ng L-1) of seawater was observed at Zhuhai Estuary. The Hg concentrations of sediment in Guishan Island were significantly higher (p < 0.05) than in Daya Bay (away from the Pearl River). Besides, the both THg and MeHg levels in sediment at mariculture sites were higher (p < 0.05) than corresponding reference sites. It was attributed to the fact that mariculture activities increased Hg loading and promoted MeHg production. The vertical distribution of Hg in sediment cores demonstrated that mercury methylation mostly occurred at the sediment-water interface. Results of health risk assessments showed that fish consumption would impose a higher risk to children but less to adults, while shellfish produced in the studied area was safe for consumption.
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Affiliation(s)
- H C Tao
- Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, PR China
| | - K Y Zhao
- Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, PR China
| | - W Y Ding
- Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, PR China
| | - J B Li
- Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, PR China
| | - P Liang
- School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, Linan, PR China
| | - S C Wu
- School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, Linan, PR China
| | - M H Wong
- Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, PR China; Consortium on Health, Environment, Education and Research (CHEER), The Education University of Hong Kong, Tai Po, Hong Kong Special Administrative Region.
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Hong C, Yu X, Liu J, Cheng Y, Rothenberg SE. Low-level methylmercury exposure through rice ingestion in a cohort of pregnant mothers in rural China. ENVIRONMENTAL RESEARCH 2016; 150:519-527. [PMID: 27423706 PMCID: PMC5003649 DOI: 10.1016/j.envres.2016.06.038] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 05/26/2016] [Accepted: 06/25/2016] [Indexed: 05/20/2023]
Abstract
BACKGROUND Rice ingestion is an important dietary exposure pathway for methylmercury. There are few studies concerning prenatal methylmercury exposure through rice ingestion, yet the health risks are greatest to the developing fetus, and thus should be investigated. OBJECTIVES Our main objective was to quantify dietary methylmercury intake through rice and fish/shellfish ingestion among pregnant mothers living in southern China, where rice was a staple food and mercury contamination was considered minimal. METHODS A total of 398 mothers were recruited at parturition, who donated scalp hair and blood samples. Total mercury and/or methylmercury concentrations were measured in biomarkers, in rice samples from each participant's home, and in fish tissue purchased from local markets. Additional fish/shellfish mercury concentrations were obtained from a literature search. Dietary methylmercury intake during the third trimester was equivalent to the ingestion rate for rice (or fish/shellfish)×the respective methylmercury concentration. RESULTS Dietary methylmercury intake from both rice and fish/shellfish ingestion averaged 1.2±1.8µg/day (median=0.79µg/day, range=0-22µg/day), including on average 71% from rice ingestion (median: 87%, range: 0-100%), and 29% from fish/shellfish consumption (median 13%, range: 0-100%). Median concentrations of hair total mercury, hair methylmercury, and blood total mercury were 0.40µg/g (range: 0.08-1.7µg/g), 0.28µg/g (range: 0.01-1.4µg/g), and 1.2µg/L (range: 0.29-8.6µg/L), respectively, and all three biomarkers were positively correlated with dietary methylmercury intake through rice ingestion (Spearman's rho=0.18-0.21, p≤0.0005), although the correlations were weak. In contrast, biomarkers were not correlated with fish/shellfish methylmercury intake (Spearman's rho=0.04-0.08, p=0.11-0.46). CONCLUSIONS Among pregnant mothers living in rural inland China, rice ingestion contributed to prenatal methylmercury exposure, more so than fish/shellfish ingestion.
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Affiliation(s)
- Chuan Hong
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, USA
| | - Xiaodan Yu
- MOE-Shanghai Key Lab of Children's Environmental Health, XinHua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Jihong Liu
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC, USA
| | - Yue Cheng
- Department of Public Health, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Sarah E Rothenberg
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, USA.
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Cheng Z, Li HH, Wang HS, Zhu XM, Sthiannopkao S, Kim KW, Yasin MSM, Hashim JH, Wong MH. Dietary exposure and human risk assessment of phthalate esters based on total diet study in Cambodia. ENVIRONMENTAL RESEARCH 2016; 150:423-430. [PMID: 27372065 DOI: 10.1016/j.envres.2016.06.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 04/25/2016] [Accepted: 06/06/2016] [Indexed: 05/25/2023]
Abstract
Phthalate esters are used in a wide variety of consumer products, and human exposure to this class of compounds is widespread. Nevertheless, studies on dietary exposure of human to phthalates are limited. In this study, to assess the daily intakes of phthalate esters and the possible adverse health impacts, different food samples were collected from three areas of Cambodia, one of the poorest countries in the world. The ∑phthalate ester concentrations in Kampong Cham, Kratie and Kandal provinces ranged from 0.05 to 2.34 (median 0.88) μgg(-1), 0.19-1.65 (median 0.86) μgg(-1) and 0.24-3.05 (median 0.59) μgg(-1) wet weight (ww), respectively. Di-2-Ethylhexyl phthalate (DEHP) and diisobutyl phthalate (DiBP) were the predominant compounds among all foodstuffs. The estimated daily intake (EDI) of phthalate esters for the general population in Kampong Cham, Kratie and Kandal was 34.3, 35.6 and 35.8μgkg(-1) bw d(-1), respectively. The dietary daily intake of DEHP, benzylbutyl phthalate (BBP) and di-n-butyl phthalate (DBP) in Kampong Cham, Kratie and Kandal were below the tolerable daily intakes (TDI) imposed by the European Food Safety Authority (EFSA) and reference doses (RfD) imposed by The United States Environmental Protection Agency (USEPA). Rice contributed the greatest quantity of DEHP to the daily intake in Cambodia so may deserve further exploration. To our knowledge, this is the first study to investigate the occurrence and the daily intakes of phthalate esters in Cambodia.
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Affiliation(s)
- Zhang Cheng
- College of Environment, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Han-Han Li
- College of Environment, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Hong-Sheng Wang
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, No.132 Waihuandong Road, University Town, Guangzhou 510006, China
| | - Xue-Mei Zhu
- College of Environment, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Suthipong Sthiannopkao
- Department of Environmental and Occupational Health, National Cheng Kung University, Tainan City, Taiwan
| | - Kyoung-Woong Kim
- School of Environmental Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
| | | | - Jamal Hisham Hashim
- United Nations University-International Institute for Global Health, Kuala Lumpur, Malaysia
| | - Ming-Hung Wong
- Consortium on Health, Environment, Education and Research (CHEER), and Department of Science and Environmental Studies, Hong Kong Institute of Education, Tai Po, Hong Kong, China; School of Environment, Jinan University, Guangzhou, China.
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Cao S, Duan X, Zhao X, Chen Y, Wang B, Sun C, Zheng B, Wei F. Health risks of children's cumulative and aggregative exposure to metals and metalloids in a typical urban environment in China. CHEMOSPHERE 2016; 147:404-411. [PMID: 26774306 DOI: 10.1016/j.chemosphere.2015.12.134] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/29/2015] [Accepted: 12/30/2015] [Indexed: 06/05/2023]
Abstract
Rapid development of industrialization and urbanization results in serious environmental contamination by metal(loid)s, which would consequently cause deleterious health effects to the exposed people through multi-pathways. Therefore, total health risk assessment for the population in urban environment is very important. Unfortunately, few studies to date investigate the cumulative health risks of metal(loid)s through aggregative pathways in Children who are often susceptible population. 12 metal(loid)s including Lead(Pb), Cadmium(Cd), Arsenic(As), Chromium(Cr), Zinc(Zn), Copper(Cu), Nickel(Ni), Manganese(Mn), Cobalt(Co), Selenium(Se), Antimony(Se) and Vanadium(V), were analyzed in PM10, drinking water, food, soil and indoor dust in this study. The cumulative and aggregative risks of these metal(loid)s among the local children were then evaluated on a field sampling and questionnaire-survey basis. The results showed that the environments were heavily polluted by metal(loid)s. For most metal(loid)s, food ingestion accounted for more than 80% of the total daily exposure dose. The non-cancer risks were up to 30 times higher than the acceptable level due to the food ingestion via Pb, Cr, Cu, Zn, As, Se, Cd and Sb, and the PM10 inhalation via Cr and Mn. While, the cancer risks were mainly attributed to Cr via food ingestion and As via food and dust ingestion, and approximately 100 times of the maximum acceptable level of 1.0 × 10(-4). The study highlights the cumulative and aggregative exposure assessment, instead of pollutant investigation to evaluate the potential health risks and emphasizes concerns to improve indoor hygienic and environmental quality and to decrease the potential harmful health effects of children living in urban area.
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Affiliation(s)
- Suzhen Cao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xiaoli Duan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Xiuge Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yiting Chen
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Sichuan Academy of Environmental Sciences, Chengdu 610041, China
| | - Beibei Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Chengye Sun
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Binghui Zheng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Fusheng Wei
- China National Environmental Monitoring Center, Beijing 100012, China
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Oral bioaccessibility of arsenic, mercury and methylmercury in marine species commercialized in Catalonia (Spain) and health risks for the consumers. Food Chem Toxicol 2015; 86:34-40. [DOI: 10.1016/j.fct.2015.09.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 09/08/2015] [Accepted: 09/21/2015] [Indexed: 11/20/2022]
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Jiang J, Lu S, Zhang H, Liu G, Lin K, Huang W, Luo R, Zhang X, Tang C, Yu Y. Dietary intake of human essential elements from a Total Diet Study in Shenzhen, Guangdong Province, China. J Food Compost Anal 2015. [DOI: 10.1016/j.jfca.2014.10.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yang HR, Kim NY, Hwang LH, Park JS, Kim JH. Mercury contamination and exposure assessment of fishery products in Korea. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2014; 8:44-9. [DOI: 10.1080/19393210.2014.968808] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Perelló G, Llobet JM, Gómez-Catalán J, Castell V, Centrich F, Nadal M, Domingo JL. Human health risks derived from dietary exposure to toxic metals in Catalonia, Spain: temporal trend. Biol Trace Elem Res 2014; 162:26-37. [PMID: 25262020 DOI: 10.1007/s12011-014-0138-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 09/22/2014] [Indexed: 11/24/2022]
Abstract
The present study was aimed at estimating the current (2012) dietary intake of arsenic (As), cadmium (Cd), mercury (Hg), and lead (Pb) by the population of Catalonia, Spain. The temporal trends with respect to previous surveys, performed in 2000, 2005, and 2008, were also determined. For that purpose, metal concentrations were analyzed in a number of widely consumed foodstuffs. A speciation study was also conducted by experimentally determining the levels of inorganic As (InAs) and methylmercury (MeHg) in the same food items. Furthermore, the dietary intake of those metals and species was calculated both deterministically and probabilistically by considering two food consumption surveys: ENCAT and ENIDE, representative of the Catalan and Spanish populations, respectively. An important temporal decrease of the dietary intake was noted for most elements, irrespective of the age-gender population group. Considering data for a male adult, the current dietary intake of As, InAs, Cd, Hg, MeHg, and Pb was estimated in 216, 2.6, 8.7, 10, 7.3, and 8.4 μg/day, respectively, being these values lower than the respective provisional tolerable weekly intakes (PTWIs) or benchmark dose lower confidence limits (BMDLs). Moreover, new calculations by means of ENIDE survey indicated similar results to those previously obtained by ENCAT, with the exception of MeHg, whose intake exceeded the maximum recommended values for some part of the population. Although our data are similar to those frequently found in other European countries, the important intake of MeHg, which is linked to the high consumption of fish and shellfish, deserves further investigation.
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Affiliation(s)
- Gemma Perelló
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201, Reus, Catalonia, Spain
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Chronic atrophic gastritis in association with hair mercury level. Tumour Biol 2014; 35:11391-8. [PMID: 25119602 DOI: 10.1007/s13277-014-2475-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 08/07/2014] [Indexed: 11/27/2022] Open
Abstract
The objective of this study was to explore hair mercury level in association with chronic atrophic gastritis, a precancerous stage of gastric cancer (GC), and thus provide a brand new angle of view on the timely intervention of precancerous stage of GC. We recruited 149 healthy volunteers as controls and 152 patients suffering from chronic gastritis as cases. The controls denied upper gastrointestinal discomforts, and the cases were diagnosed as chronic superficial gastritis (n=68) or chronic atrophic gastritis (n=84). We utilized Mercury Automated Analyzer (NIC MA-3000) to detect hair mercury level of both healthy controls and cases of chronic gastritis. The statistic of measurement data was expressed as mean ± standard deviation, which was analyzed using Levene variance equality test and t test. Pearson correlation analysis was employed to determine associated factors affecting hair mercury levels, and multiple stepwise regression analysis was performed to deduce regression equations. Statistical significance is considered if p value is less than 0.05. The overall hair mercury level was 0.908949 ± 0.8844490 ng/g [mean ± standard deviation (SD)] in gastritis cases and 0.460198 ± 0.2712187 ng/g (mean±SD) in healthy controls; the former level was significantly higher than the latter one (p=0.000<0.01). The hair mercury level in chronic atrophic gastritis subgroup was 1.155220 ± 0.9470246 ng/g (mean ± SD) and that in chronic superficial gastritis subgroup was 0.604732 ± 0.6942509 ng/g (mean ± SD); the former level was significantly higher than the latter level (p<0.01). The hair mercury level in chronic superficial gastritis cases was significantly higher than that in healthy controls (p<0.05). The hair mercury level in chronic atrophic gastritis cases was significantly higher than that in healthy controls (p<0.01). Stratified analysis indicated that the hair mercury level in healthy controls with eating seafood was significantly higher than that in healthy controls without eating seafood (p<0.01) and that the hair mercury level in chronic atrophic gastritis cases was significantly higher than that in chronic superficial gastritis cases (p<0.01). Pearson correlation analysis indicated that eating seafood was most correlated with hair mercury level and positively correlated in the healthy controls and that the severity of gastritis was most correlated with hair mercury level and positively correlated in the gastritis cases. Multiple stepwise regression analysis indicated that the regression equation of hair mercury level in controls could be expressed as 0.262 multiplied the value of eating seafood plus 0.434, the model that was statistically significant (p<0.01). Multiple stepwise regression analysis also indicated that the regression equation of hair mercury level in gastritis cases could be expressed as 0.305 multiplied the severity of gastritis, the model that was also statistically significant (p<0.01). The graphs of regression standardized residual for both controls and cases conformed to normal distribution. The main positively correlated factor affecting the hair mercury level is eating seafood in healthy people whereas the predominant positively correlated factor affecting the hair mercury level is the severity of gastritis in chronic gastritis patients. That is to say, the severity of chronic gastritis is positively correlated with the level of hair mercury. The incessantly increased level of hair mercury possibly reflects the development of gastritis from normal stomach to superficial gastritis and to atrophic gastritis. The detection of hair mercury is potentially a means to predict the severity of chronic gastritis and possibly to insinuate the environmental mercury threat to human health in terms of gastritis or even carcinogenesis.
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Rothenberg SE, Windham-Myers L, Creswell JE. Rice methylmercury exposure and mitigation: a comprehensive review. ENVIRONMENTAL RESEARCH 2014; 133:407-23. [PMID: 24972509 PMCID: PMC4119557 DOI: 10.1016/j.envres.2014.03.001] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 01/25/2014] [Accepted: 03/01/2014] [Indexed: 05/20/2023]
Abstract
Rice cultivation practices from field preparation to post-harvest transform rice paddies into hot spots for microbial mercury methylation, converting less-toxic inorganic mercury to more-toxic methylmercury, which is likely translocated to rice grain. This review includes 51 studies reporting rice total mercury and/or methylmercury concentrations, based on rice (Orzya sativa) cultivated or purchased in 15 countries. Not surprisingly, both rice total mercury and methylmercury levels were significantly higher in polluted sites compared to non-polluted sites (Wilcoxon rank sum, p<0.001). However, rice percent methylmercury (of total mercury) did not differ statistically between polluted and non-polluted sites (Wilcoxon rank sum, p=0.35), suggesting comparable mercury methylation rates in paddy soil across these sites and/or similar accumulation of mercury species for these rice cultivars. Studies characterizing the effects of rice cultivation under more aerobic conditions were reviewed to determine the mitigation potential of this practice. Rice management practices utilizing alternating wetting and drying (instead of continuous flooding) caused soil methylmercury levels to spike, resulting in a strong methylmercury pulse after fields were dried and reflooded; however, it is uncertain whether this led to increased translocation of methylmercury from paddy soil to rice grain. Due to the potential health risks, it is advisable to investigate this issue further, and to develop separate water management strategies for mercury polluted and non-polluted sites, in order to minimize methylmercury exposure through rice ingestion.
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Affiliation(s)
- Sarah E Rothenberg
- University of South Carolina, Arnold School of Public Health, Department of Environmental Health Sciences, 921 Assembly Street, Room 401, Columbia, SC 29208, USA.
| | | | - Joel E Creswell
- Brooks Rand Instruments, 4415 6th Ave NW, Seattle, WA 98107, USA.
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Zhang H, Wang D, Zhang J, Shang X, Zhao Y, Wu Y. Total mercury in milled rice and brown rice from China and health risk evaluation. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2014; 7:141-6. [DOI: 10.1080/19393210.2013.860485] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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