1
|
Li J, Cui D, Yang Z, Ma J, Liu J, Yu Y, Huang X, Xiang P. Health risk assessment of heavy metal(loid)s in road dust via dermal exposure pathway from a low latitude plateau provincial capital city: The importance of toxicological verification. Environ Res 2024:118890. [PMID: 38615791 DOI: 10.1016/j.envres.2024.118890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/31/2024] [Accepted: 04/06/2024] [Indexed: 04/16/2024]
Abstract
The human health risk assessment through the dermal exposure of metal(loid)s in dust from low latitude and high geological background plateau cities was largely unknown. In this study, the road dust samples were harvested from a typical low-latitude plateau provincial capital city Kunming, Southwest China. The total concentration and dermal bioaccessibility of heavy metal(loid)s in road dust were determined, and their health risks and cytotoxicity on human skin keratinocytes were also assessed. The average concentrations of As (28.5 mg/kg), Cd (2.65 mg/kg), Mn (671 mg/kg), and Zn (511 mg/kg) exceeded the soil background values. Arsenic had the highest bioaccessibility after 2 h (3.79%), 8 h (4.24%), and 24 h (16.6%) extraction. Although soil assessment methods showed no health risk in the total heavy metals assessment, based water assessments showed bioaccessible heavy metals As, Mn, Ni and Cd have non-carcinogenic risks for human. In addition, the dust extracts suppressed the cell viability, increased the Reactive oxygen species (ROS) level and DNA damage, and eventually activated the mitochondria-mediated apoptosis pathway, evidenced by the upregulation of Caspase-3/9, Bax, and Bak-1. Cadmium was positively correlated with the mRNA expression of Bax. Both dermal bioaccessibility and cytotoxicity should be considered for accurate human skin health risk assessment of heavy metals in road dust, which may provide new insight for accurate human health risk assessment and environmental management.
Collapse
Affiliation(s)
- Jingya Li
- Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming, 650224, China
| | - Daolei Cui
- Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming, 650224, China
| | - Ziyue Yang
- Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming, 650224, China
| | - Jiaoyang Ma
- Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming, 650224, China
| | - Jianjun Liu
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Yingxin Yu
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Biomedical Engineering, Kunming Medical University, Kunming 650500, China
| | - Xianfeng Huang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Ping Xiang
- Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming, 650224, China.
| |
Collapse
|
2
|
Luo F, Zhang F, Zhang W, Huang Q, Tang X. Distribution, Ecological Risk, and Source Identification of Heavy Metal(loid)s in Sediments of a Headwater of Beijiang River Affected by Mining in Southern China. Toxics 2024; 12:117. [PMID: 38393212 PMCID: PMC10892579 DOI: 10.3390/toxics12020117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024]
Abstract
In this study, the contents of eight heavy metal(loid)s (As, Pb, Zn, Cd, Cr, Cu, Sb and Tl) in 50 sediment samples from a headwater of Beijiang River were studied to understand their pollution, ecological risk and potential sources. Evaluation indexes including sediment quality guidelines (SDGs), enrichment factor (EF), geo-accumulation index (Igeo), risk assessment code (RAC) and bioavailable metal index (BMI) were used to evaluate the heavy metal(loid)s pollution and ecological risk in the sediments. Pearson's correlation analysis and principal component analysis were used to identify the sources of heavy metal(loid)s. The results showed that the average concentration of heavy metal(loid)s obviously exceeded the background values, except Cr. Metal(loid)s speciation analysis indicated that Cd, Pb, Cu and Zn were dominated by non-residual fractions, which presented higher bioavailability. The S content in sediments could significantly influence the geochemical fractions of heavy metal(loid)s. As was expected, it had the most adverse biological effect to local aquatic organism, followed by Pb. The EF results demonstrated that As was the most enriched, while Cr showed no enrichment in the sediments. The assessment of Igeo suggested that Cd and As were the most serious threats to the river system, while Cr showed almost no contamination in the sediments. Heavy metal(loid)s in sediments in the mining- and smelting-affected area showed higher bioavailability. According to the results of the above research, the mining activities caused heavier heavy metal(loid)s pollution in the river sediment. Three potential sources of heavy metal(loid)s in sediment were distinguished based on the Pearson's correlation analysis and PCA, of which Cd, Pb, As, Zn, Sb and Cu were mainly derived from mining activities, Cr was mainly derived from natural sources, Tl was mainly derived from smelting activities.
Collapse
Affiliation(s)
- Fei Luo
- Institute of Karst Geology, CAGS/Key Laboratory of Karst Dynamics, MNR&GZAR/International Research Center on Karst under the Auspices of UNESCO, Guilin 541004, China; (F.L.); (Q.H.)
- Guangxi Karst Resources and Environment Research Center of Engineering Technology, Guilin 541004, China
- Pingguo Guangxi, Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China
| | - Fawang Zhang
- Center for Hydrogeology and Environmental Geology Survey, China Geological Survey, Baoding 071051, China
| | - Wenting Zhang
- Regional Geological Survey of Guangxi, Guilin 541003, China;
| | - Qibo Huang
- Institute of Karst Geology, CAGS/Key Laboratory of Karst Dynamics, MNR&GZAR/International Research Center on Karst under the Auspices of UNESCO, Guilin 541004, China; (F.L.); (Q.H.)
- Guangxi Karst Resources and Environment Research Center of Engineering Technology, Guilin 541004, China
- Pingguo Guangxi, Karst Ecosystem, National Observation and Research Station, Pingguo 531406, China
| | - Xing Tang
- Hunan Geological Testing Institute, Changsha 410007, China;
| |
Collapse
|
3
|
Slavković-Beškoski L, Ignjatović L, Ćujić M, Vesković J, Trivunac K, Stojaković J, Perić-Grujić A, Onjia A. Ecological and Health Risks Attributed to Rare Earth Elements in Coal Fly Ash. Toxics 2024; 12:71. [PMID: 38251026 PMCID: PMC10818428 DOI: 10.3390/toxics12010071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/22/2023] [Accepted: 01/08/2024] [Indexed: 01/23/2024]
Abstract
The occurrence and distribution of yttrium and rare earth elements (REYs), along with major elements and heavy metal(loid)s (HMs) in coal fly ash (CFA) from five coal-fired power plants (CFPPs), were analyzed, and the REY-associated ecological and health risks were assessed. The individual REYs in CFA were abundant in the following order: Ce > La > Nd > Y > Pr > Gd > Sm > Dy > Er > Yb > Eu > Ho > Tb > Tm > Lu. The total REY content ranged from 135 to 362 mg/kg, averaging 302 mg/kg. The mean light-to-heavy REY ratio was 4.1, indicating prevalent light REY enrichment in CFA. Significantly positive correlations between the REYs suggested that they coexist and share similar origins in CFA. REYs were estimated to pose low to moderate ecological risks, with risk index (RI) values ranging from 66 to 245. The hazard index (HI) and target cancer risk (TCR) of REYs from CFA, estimated to be higher for children (HIc = 0.15, TCRc = 8.4 × 10-16) than for adults (HIa = 0.017, TCRa = 3.6 × 10-16), were well below the safety limits (HI = 1, TCR = 1.0 × 10-6). However, the danger to human health posed by HMs in the same CFA samples (HIc = 5.74, TCRc = 2.6 × 10-4, TCRa = 1.1 × 10-4) exceeded the safe thresholds (excl. HIa = 0.63). The mean RI and HI attributed to REYs in CFA were 14% and 2.6%, respectively, of the total risks that include HMs.
Collapse
Affiliation(s)
| | - Ljubiša Ignjatović
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia
| | - Mirjana Ćujić
- Vinča Institute of Nuclear Sciences, University of Belgrade, Mike Petrovića Alasa 12-14, 11351 Vinča, Serbia
| | - Jelena Vesković
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Katarina Trivunac
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Jelena Stojaković
- Innovation Center of the Faculty of Technology and Metallurgy, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Aleksandra Perić-Grujić
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Antonije Onjia
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| |
Collapse
|
4
|
Vesković J, Lučić M, Ristić M, Perić-Grujić A, Onjia A. Spatial Variability of Rare Earth Elements in Groundwater in the Vicinity of a Coal-Fired Power Plant and Associated Health Risk. Toxics 2024; 12:62. [PMID: 38251017 PMCID: PMC10820410 DOI: 10.3390/toxics12010062] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/02/2024] [Accepted: 01/08/2024] [Indexed: 01/23/2024]
Abstract
This study investigated the occurrence and distribution of rare earth elements (REEs), including 14 lanthanoids, scandium (Sc), and yttrium (Y), in groundwater around a large coal-fired thermal power plant (TPP). The ICP-MS technique was used to analyze 16 REEs in groundwater samples collected from monitoring wells. REE concentrations ranged from 59.9 to 758 ng/L, with an average of 290 ng/L. The most abundant was Sc, followed by La, accounting for 54.2% and 21.4% of the total REE concentration, respectively. Geospatial analysis revealed the REE enrichment at several hotspots near the TPP. The highest REE concentrations were observed near the TPP and ash landfill, decreasing with the distance from the plant and the landfill. REE fractionation ratios and anomalies suggested the Light REE dominance, comprising over 78% of the total REEs. Correlation and principal component analyses indicated similar behavior and sources for most REEs. Health risk assessment found hazard indices (HI) of 1.36 × 10-3 and 1.98 × 10-3 for adults and children, respectively, which are far below the permissible limit (HI = 1). Likewise, incremental lifetime cancer risks (ILCR) were all below 1 × 10-6. Nevertheless, ongoing ash disposal and potential accumulation in the environment could elevate the REE exposure over time.
Collapse
Affiliation(s)
- Jelena Vesković
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Milica Lučić
- Innovation Center of the Faculty of Technology and Metallurgy, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Mirjana Ristić
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Aleksandra Perić-Grujić
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| | - Antonije Onjia
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
| |
Collapse
|
5
|
Zeng X, Jin Q, Wang P, Huang C. Distribution and Speciation of Heavy Metal(loid)s in Soils under Multiple Preservative-Treated Wooden Trestles. Toxics 2023; 11:249. [PMID: 36977014 PMCID: PMC10056422 DOI: 10.3390/toxics11030249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/22/2023] [Accepted: 03/02/2023] [Indexed: 06/18/2023]
Abstract
The widespread use of wood preservatives, such as chromated copper arsenate (CCA), alkaline copper quaternary (ACQ), and copper azole (CA), may cause environmental pollution problems. Comparative studies on the effect of CCA-, ACQ-, and CA-treated wood on soil contamination are rarely reported, and the behavior of soil metal(loid) speciation affected by preservatives has been poorly understood. Soils under the CCA-, ACQ-, and CA-treated boardwalks were collected to investigate metal(loid) distribution and speciation at the Jiuzhaigou World Natural Heritage site. The results showed that the maximum mean concentrations of Cr, As, and Cu were found in soils under the CCA, CCA, and CCA plus CA treatments and reached 133.60, 314.90, and 266.35 mg/kg, respectively. The Cr, As, and Cu contamination in soils within a depth of above 10 cm was high for all types of boardwalks and limited in the horizontal direction, not exceeding 0.5 m. Cr, As, and Cu in soils were mainly present as residual fractions in all profiles and increased with depth. The proportion of non-residual As in soil profiles under CCA- and CCA plus CA-treatment and exchangeable Cu in CA- and CCA plus CA-treatment were significantly higher than those in the profiles under the other preservative treatments. The distribution and migration of Cr, As, and Cu within soils were influenced by the preservative treatment of trestles, in-service time of trestles, soil properties (e.g., organic matter content), geological disasters (e.g., debris flow), and elemental geochemical behavior. With the CCA treatment for trestles successively replaced by ACQ and CA treatments, the types of contaminants were reduced from a complex of Cr, As, and Cu to a single type of Cu, achieving a reduction in total metal content, toxicity, mobility, and biological effectiveness, thus reducing environmental risks.
Collapse
Affiliation(s)
- Xiu Zeng
- Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Qian Jin
- Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Panpan Wang
- Jiuzhaigou Administration Bureau, Jiuzhaigou 623402, China
| | - Chengmin Huang
- Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China
| |
Collapse
|
6
|
Xiang P, Han YH, Li HB, Gao P. Editorial: Advanced analytical techniques for heavy metal(loid)s speciation in soil, crop, and human samples. Front Chem 2023; 11:1151371. [PMID: 36817177 PMCID: PMC9936221 DOI: 10.3389/fchem.2023.1151371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Affiliation(s)
- Ping Xiang
- Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming, China,*Correspondence: Ping Xiang, ; Peng Gao,
| | - Yong-He Han
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, China
| | - Hong-Bo Li
- School of Environment, Nanjing University, Nanjing, China
| | - Peng Gao
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, United States,*Correspondence: Ping Xiang, ; Peng Gao,
| |
Collapse
|
7
|
Wang Y, Xin C, Yu S, Xie Y, Zhang W, Fu R. Health Risk Assessment Based on Source Identification of Heavy Metal(loid)s: A Case Study of Surface Water in the Lijiang River, China. Toxics 2022; 10:toxics10120726. [PMID: 36548559 PMCID: PMC9783363 DOI: 10.3390/toxics10120726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/16/2022] [Accepted: 11/23/2022] [Indexed: 05/19/2023]
Abstract
In this study, 24 surface water samples were collected from the main trunk/tributary of the Lijiang River during the wet season (April) and the dry season (December) in 2021. The total concentration of 11 heavy metal(loid)s (Al, Cu, Pb, Zn, Cr, Ni, Co, Cd, Mn, As, and Hg) was determined to investigate their physicochemical properties and spatial-temporal distribution characteristics. The heavy metal evaluation index (HEI) and the positive matrix factorization (PMF) model were employed to evaluate water quality and to reveal quantitatively identified pollution sources for further investigation to obtain a health risk assessment using the hazard index (HI) and carcinogenic risk (CR) of various pollution sources. The mean concentrations of heavy metal(loid)s in surface water in the wet and dry seasons were ranked as: Al > Mn > Zn > Ni > Cd > Cr > Cu > As >Hg = Pb > Co, with the mean concentration of Hg being higher than the national Class II surface water environmental quality standard (GB3838-2002). In terms of time scale, the concentration of most heavy metal(loid)s was higher in the wet season; most heavy metal(loid)s were distributed mainly in the midstream area. HEI index indicated that the main water quality status was “slightly affected” in the study area. Five potential sources of pollution were obtained from the PMF model, including industrial activities, traffic sources, agricultural activities, domestic waste emissions, and natural resources. The source-oriented risk assessment indicated that the largest contributions of HI and CR were agricultural sources in the Lijiang River. This study provides a “target” for the precise control of pollution sources, which has a broad impact on improving the fine management of the water environment in the basin.
Collapse
Affiliation(s)
- Yu Wang
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
- Key Laboratory of Resource Environment and Sustainable Development of Oasis, Lanzhou 730070, China
- Key Laboratory of Karst Dynamics, MNR & GZAR, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
- International Research Center on Karst under the Auspices of UNESCO, Guilin 541004, China
| | - Cunlin Xin
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
- Key Laboratory of Resource Environment and Sustainable Development of Oasis, Lanzhou 730070, China
- Correspondence: (C.X.); (S.Y.)
| | - Shi Yu
- Key Laboratory of Karst Dynamics, MNR & GZAR, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
- International Research Center on Karst under the Auspices of UNESCO, Guilin 541004, China
- Correspondence: (C.X.); (S.Y.)
| | - Yincai Xie
- Key Laboratory of Karst Dynamics, MNR & GZAR, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
- International Research Center on Karst under the Auspices of UNESCO, Guilin 541004, China
| | - Wanjun Zhang
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
- Key Laboratory of Resource Environment and Sustainable Development of Oasis, Lanzhou 730070, China
- Key Laboratory of Karst Dynamics, MNR & GZAR, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
- International Research Center on Karst under the Auspices of UNESCO, Guilin 541004, China
| | - Rongjie Fu
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
- Key Laboratory of Resource Environment and Sustainable Development of Oasis, Lanzhou 730070, China
- Key Laboratory of Karst Dynamics, MNR & GZAR, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
- International Research Center on Karst under the Auspices of UNESCO, Guilin 541004, China
| |
Collapse
|
8
|
Zhang Y, Song B, Zhu L, Zhou Z. Evaluation of the metal(loid)s phytoextraction potential of wild plants grown in three antimony mines in southern China. Int J Phytoremediation 2020; 23:781-790. [PMID: 33307730 DOI: 10.1080/15226514.2020.1857685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Wild plant species from three deserted antimony (Sb) mine areas in southern China were collected to measure eight metal(loid)s. Antimony, As (arsenic), Cd (cadmium), Cr (chromium), Cu (copper), Ni (nickel), Pb (lead), and Zn (zinc) concentrations in plants and soil were analyzed. The soils of the mining area was weakly alkaline and contained toxic levels of Sb, As, Pb, Cd, and Zn. Many plant species in the area (40 species and 19 families) have no clear signs of toxicity. The plants were divided into three categories (high, moderate, and low tendency to accumulate metals) based on their (ratio [RT], bioaccumulation factor [BCF], translocation factor [TF]) values. The plants with a high accumulation tendency exhibited the high potential to absorb Sb from contaminated soil; therefore, they can be used for the remediation or phytoremediation of Sb-contaminated soil.
Collapse
Affiliation(s)
- Yunxia Zhang
- Colleges of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| | - Bo Song
- Colleges of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| | - Liangliang Zhu
- Colleges of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| | - Ziyang Zhou
- Colleges of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| |
Collapse
|
9
|
Cao S, Chen X, Zhang L, Xing X, Wen D, Wang B, Qin N, Wei F, Duan X. Quantificational exposure, sources, and health risks posed by heavy metals in indoor and outdoor household dust in a typical smelting area in China. Indoor Air 2020; 30:872-884. [PMID: 32347976 DOI: 10.1111/ina.12683] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/14/2020] [Accepted: 04/22/2020] [Indexed: 05/22/2023]
Abstract
Contamination of metals in household dust remains a concern for human health. However, few studies to date have been conducted on the contribution of both indoor and outdoor environments to the health risks posed by metals. This study was carried out to assess the potential health risks from both indoor and outdoor household dust and the respective contribution to the health risks for children. The results showed that household dusts were heavily polluted by metal(loid)s, which were up to 30 times higher than the relative background level, and were attributed to smelting activity. However, there are other pollution sources in indoor environments, since the I/O ratio values of Pb, Cd, and As were significantly higher than 1. HI values of Pb and As exceeded the threshold of (1) and accounted for approximately 60% and 24% to the HIt, respectively. The HIts of Zn, Cr, Mn, Hg, and Cu were mainly attributable to indoor dust exposure, particularly for Hg (73.44%), indicating non-carcinogenic health risks could be attributed more to the indoor dust exposure. This study highlights the potential risks of metal contamination in household environment, particularly indoor environment, on the health of children who live in the vicinity of smelting activity.
Collapse
Affiliation(s)
- Suzhen Cao
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China
| | - Xing Chen
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China
| | - Linlin Zhang
- China National Environmental Monitoring Center, Beijing, China
| | - Xiaoru Xing
- Institute for Environmental Reference Materials, Ministry of Environmental Protection, Beijing, China
| | - Dongshen Wen
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China
| | - Beibei Wang
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China
| | - Ning Qin
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China
| | - Fusheng Wei
- Institute for Environmental Reference Materials, Ministry of Environmental Protection, Beijing, China
| | - Xiaoli Duan
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China
| |
Collapse
|
10
|
Shehata E, Liu Y, Feng Y, Cheng D, Li Z. Changes in Arsenic and Copper Bioavailability and Oxytetracycline Degradation during the Composting Process. Molecules 2019; 24:E4240. [PMID: 31766456 PMCID: PMC6930472 DOI: 10.3390/molecules24234240] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/15/2019] [Accepted: 11/17/2019] [Indexed: 01/30/2023] Open
Abstract
This research focuses on the effects of the composting process on oxytetracycline antibiotic degradation and the bioavailability of arsenic and copper. A compost experiment was conducted using cow and pig manure contaminated with oxytetracycline, and copper and arsenic salts. The changes in physicochemical properties, oxytetracycline concentration, and the germination index were measured. Copper and arsenic were estimated by sequential chemical extraction. We also detected the effects of compost properties, oxytetracycline concentration, and heavy metal (loid)s on the germination index through simple regression analysis. The results showed that the composting process positively and significantly affected heavy metal(loid)s bioavailability, oxytetracycline degradation, and the germination index. Oxytetracycline concentration declined in all treatments, and the decline was more evident in cows' manure. The copper and arsenic bioavailable fraction decreased significantly, while the low bioavailability fraction increased. The germination index increased above 50%, which showed that the compost was free of toxic substances. This result also showed that the compost properties had the most significant impact on the germination index, and their regression had the highest R2 values (0.84 and 0.99) in the cow and pig manure treatments, respectively. In conclusion, the composting process provides an economical method for oxytetracycline degradation and heavy metal(loid)s bioavailability reduction.
Collapse
Affiliation(s)
- Ebrahim Shehata
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, China-New Zealand Joint Laboratory for Soil Molecular Ecology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (E.S.); (Y.L.); (Y.F.)
- Department of Natural Resources and Agricultural Engineering, College of Agriculture, Damanhour University, Damanhour 22511, Egypt
| | - Yuanwang Liu
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, China-New Zealand Joint Laboratory for Soil Molecular Ecology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (E.S.); (Y.L.); (Y.F.)
| | - Yao Feng
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, China-New Zealand Joint Laboratory for Soil Molecular Ecology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (E.S.); (Y.L.); (Y.F.)
| | - Dengmiao Cheng
- Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan 523808, China;
| | - Zhaojun Li
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture, China-New Zealand Joint Laboratory for Soil Molecular Ecology, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (E.S.); (Y.L.); (Y.F.)
| |
Collapse
|
11
|
Liang Y, Wang X, Guo Z, Xiao X, Peng C, Yang J, Zhou C, Zeng P. Chelator-assisted phytoextraction of arsenic, cadmium and lead by Pteris vittata L. and soil microbial community structure response. Int J Phytoremediation 2019; 21:1032-1040. [PMID: 31020854 DOI: 10.1080/15226514.2019.1594685] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Using biodegradable chelators to assist in phytoextraction may be an effective approach to enhance the heavy-metal remediation efficiencies of plants. A pot experiment was conducted to investigate the effects of ethylenediamine disuccinic acid (EDDS), citric acid (CA), and oxalic acid (OA) on the growth of the arsenic (As) hyperaccumulator Pteris vittata L., its arsenic (As), cadmium (Cd), and lead (Pb) uptake and accumulation, and soil microbial responses in multi-metal(loid)-contaminated soil. The addition of 2.5-mmol kg-1 OA (OA-2.5) produced 26.7 and 14.9% more rhizoid and shoot biomass, respectively compared with the control, while EDDS and CA treatments significantly inhibited plant growth. The As accumulation in plants after the OA-2.5 treatment increased by 44.2% and the Cd and Pb accumulation in plants after a 1-mmol kg-1 EDDS treatment increased by 24.5 and 19.6%, respectively. Soil urease enzyme activities in OA-2.5 treatment were significantly greater than those in the control and other chelator treatments (p < 0.05). A PCR-denatured gradient gel electrophoresis analysis revealed that with the addition of EDDS, CA and OA enhanced soil microbial diversity. It was concluded that the addition of OA-2.5 was suitable for facilitating phytoremediation of soil As and did not have negative effects on the microbial community.
Collapse
Affiliation(s)
- Yuqin Liang
- a School of Metallurgy and Environment, Central South University , Changsha , China
| | - Xiaohui Wang
- a School of Metallurgy and Environment, Central South University , Changsha , China
| | - Zhaohui Guo
- a School of Metallurgy and Environment, Central South University , Changsha , China
| | - Xiyuan Xiao
- a School of Metallurgy and Environment, Central South University , Changsha , China
| | - Chi Peng
- a School of Metallurgy and Environment, Central South University , Changsha , China
| | - Jun Yang
- b Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences , Beijing , China
| | - Cong Zhou
- a School of Metallurgy and Environment, Central South University , Changsha , China
| | - Peng Zeng
- a School of Metallurgy and Environment, Central South University , Changsha , China
| |
Collapse
|