1
|
Yang J, Ching YC, Kadokami K, Ching KY, Xu S, Hu G, Wang J. Distribution and health risks of organic micropollutants from home dusts in Malaysia. CHEMOSPHERE 2022; 309:136600. [PMID: 36170925 DOI: 10.1016/j.chemosphere.2022.136600] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 09/17/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Indoor dust is an important medium to evaluate human exposure to emerging organic contaminants. The principal aim of this study was to determine overall status of organic micropollutants (OMPs) of indoor dust in Kuala Lumpur, Malaysia and assess their corresponding health risks. One hundred thirty-three OMPs, ascribed to 13 chemical groups, were screened by Automated Identification and Quantification System with a GC-MS database. The concentrations of OMPs ranged between 460 and 4000 μg/g, with the median concentration of 719 μg/g. The dominant chemical groups were ascribed to n-alkanes (median: 274 μg/g), plasticizers (151 μg/g), sterols (120 μg/g), and pesticides (42.6 μg/g). Cholestrol was the most abundant compound (median: 115 μg/g). Different sources and usage patterns of OMPs in various houses were expected. Toxicity values of OMPs were obtained from existing databases or predicted by quantitative structure-activity relationship models. Cumulative hazard quotients for OMPs through ingestion route were lower than one for all the dust samples, demonstrating that there was no remarkable non-cancer risk. The cancer risks of these OMPs were greater than 10-4, with cholestrol dominating 99.1% of the carcinogenic risks, which suggested that there was a significant cancer risk. This study might offer a benchmark to ensure the safety of chemical usages in future in Malaysia.
Collapse
Affiliation(s)
- Jianlei Yang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
| | - Yern Chee Ching
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia.
| | - Kiwao Kadokami
- Institute of Environmental Science and Technology, the University of Kitakyushu, 1-1 Hibikino, Wakamatsu Kitakyushu, Fukuoka, 808-0135, Japan.
| | - Kuan Yong Ching
- University of Reading Malaysia, Kota Ilmu, Persiaran Graduan, Educity, 79200 Nusajaya, Johor, Malaysia
| | - Shicai Xu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
| | - Guodong Hu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
| | - Jihua Wang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
| |
Collapse
|
2
|
Sankoda K, Ishikawa S, Sekiguchi K. Levels and Compositions of Polycyclic Aromatic Hydrocarbons in Rainwater and Their Implication for Aquatic Environments in Urban Area in Saitama, Japan. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.1950781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kenshi Sankoda
- Department of Environmental and Civil Engineering, Toyama Prefectural University, Imizu, Toyama, Japan
| | - Saeka Ishikawa
- Graduate School of Science and Technology, Saitama University, Saitama, Japan
| | - Kazuhiko Sekiguchi
- Graduate School of Science and Technology, Saitama University, Saitama, Japan
| |
Collapse
|
3
|
Lee S, Tobino T, Nakajima F. Selection of formulated sediment and feeding condition for 10-day spiked-sediment toxicity test with estuarine amphipod Grandidierella japonica. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 823:153808. [PMID: 35150670 DOI: 10.1016/j.scitotenv.2022.153808] [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: 12/03/2021] [Revised: 01/28/2022] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
This study was performed to select formulated sediment with appropriate feeding conditions for the evaluation of estuarine sediment toxicity. Grandidierella japonica, which inhabits seawater worldwide, was examined for 10-day survival, and the repeatability was evaluated under nine test conditions. The formulated sediment feeding condition combined with the highest survival rate was applied to evaluate fluoranthene toxicity in the sediment. The KB-T10 feeding condition showed the highest survival rate of 93.5%, with sufficient repeatability (4.6%). In the fluoranthene spiked-sediment toxicity test, the estimated LC50 (95% significance level) was successfully achieved under the KB-T10 condition but not under the OE-T10 condition. Therefore, we propose the use of TetraMin® (1 mg/org./day) and Kemble sediment in 10-day static spiked-sediment toxicity tests with G. japonica. Further improvements are needed for OECD sediment in seawater to increase the survival rate and prevent chemical loss due to overlying water renewal.
Collapse
Affiliation(s)
- Soyoung Lee
- Department of Urban Engineering, Graduate School of Engineering, The University of Tokyo, Japan
| | - Tomohiro Tobino
- Department of Urban Engineering, Graduate School of Engineering, The University of Tokyo, Japan
| | | |
Collapse
|
4
|
Yang J, Ching YC, Kadokami K. Occurrence and exposure risk assessment of organic micropollutants in indoor dust from Malaysia. CHEMOSPHERE 2022; 287:132340. [PMID: 34826953 DOI: 10.1016/j.chemosphere.2021.132340] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 09/03/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Indoor dust is an important source of human exposure to hazardous organic micropollutants (OMPs) because humans spend about 90 % of their time in the indoor environments. This study initially analyzed the concentrations and compositions of OMPs in the dust of different indoor environments from Kuala Lumpur, Malaysia. A total of 57 OMPs were detected and assigned to 7 chemical classes in this study. The total concentration of OMPs ranged from 5980 to 183,000 ng/g, with the median concentration of 46,400 ng/g. Personal care products, organophosphate esters, and pesticides were the dominant groups, with their median concentrations at 12,000, 10,000, and 5940 ng/g, respectively. The concentrations and compositions of influential OMPs varied in different microenvironments, suggesting different sources and usage patterns in the house. Then, the noncarcinogenic and carcinogenic risks of exposure to these substances for diverse age groups were assessed based on the median concentration. Cumulative noncarcinogenic risks of these OMPs via ingestion pathway were estimated to be negligible (1.41 × 10-4 - 1.87 × 10-3). The carcinogenic risks of these OMPs were higher than 10-6 (1.63 × 10-6 - 6.17 × 10-6) and should be noted. Theobromine accounted for more than 89 % of the cumulative cancer risk, implying that the carcinogenic risk of theobromine needs further monitoring in the future. Toddler was the most affected group for cancer risk among all the age groups, regardless of the microenvironments. These findings from this study may provide a benchmark for future efforts to ensure the safety of indoor dust for the local residents.
Collapse
Affiliation(s)
- Jianlei Yang
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia; Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Yern Chee Ching
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia.
| | - Kiwao Kadokami
- Institute of Environmental Science and Technology, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka, 808-0135, Japan.
| |
Collapse
|
5
|
Li W, Cheng G, Wu Z, Chen X. Pilot-scale constructed bypass channel for urban river restoration: the remedial efficiency and the variance in biodiversity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:56507-56521. [PMID: 34060013 DOI: 10.1007/s11356-021-14628-5] [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: 02/13/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
Like the blood vessels of the cities, urban rivers play a significant role on maintaining the cities' sustainable development. In addition to the prevention of pollutants discharge and improving the river water quality, the restoration of the urban rivers' ecosystem should be well concerned. To fill this gap, a pilot-scale study with constructed bypass channel (CBC) was conducted. The pollutants reduction by the aquatic plants of the CBC was evaluated, and the similarities/differences of the aquatic biodiversity between the CBC and the natural rivers were analyzed. The results indicated that the mean removal efficiency of TP, NH3-N, TN, and COD by the CBC was 66%, 60%, 52%, and 36%, respectively. Chlorophyta, Bacillariophyta, and Cyanophyta were the dominant phytoplankton phyla in the CBC which was in accordance with the studies conducted in the Dongjiang River and the Pearl River. During the study period of about 6 months, the population density and the biomass of the phytoplankton and the zooplankton increased over time. The quality of the influent dominated the aquatic organisms' diversity of the CBC. N-element dominated not only the phytoplankton variability, but also the bacterial species of the CBC. The timber pile and the submerged plant root soil were more suitable for the growth of the functional bacteria; thus, the construction of the river restoration infrastructures should avoid using large-scale cement materials. Overall, the study would improve the understanding of urban river restoration practice and provide guidance for future restoration practice especially from the aquatic ecological perspectives.
Collapse
Affiliation(s)
- Wei Li
- School of Civil Engineering, Sun Yat-Sen University, Zhuhai, 519082, China
- State Environmental Protection Key Laboratory of Source Water Management and Technology, Shenzhen Academy of Environmental Sciences, Shenzhen, 518001, China
| | - Gong Cheng
- State Environmental Protection Key Laboratory of Source Water Management and Technology, Shenzhen Academy of Environmental Sciences, Shenzhen, 518001, China.
| | - Zhaoyi Wu
- State Environmental Protection Key Laboratory of Source Water Management and Technology, Shenzhen Academy of Environmental Sciences, Shenzhen, 518001, China
- Central South University of Forestry & Technology, Changsha, 410004, China
| | - Xiaohong Chen
- School of Civil Engineering, Sun Yat-Sen University, Zhuhai, 519082, China
| |
Collapse
|
6
|
Nishimuta K, Ueno D, Takahashi S, Kuwae M, Kadokami K, Miyawaki T, Matsukami H, Kuramochi H, Higuchi T, Koga Y, Matsumoto H, Ryuda N, Miyamoto H, Haraguchi T, Sakai SI. Use of comprehensive target analysis for determination of contaminants of emerging concern in a sediment core collected from Beppu Bay, Japan. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 272:115587. [PMID: 33261969 DOI: 10.1016/j.envpol.2020.115587] [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: 07/10/2020] [Revised: 08/18/2020] [Accepted: 09/01/2020] [Indexed: 06/12/2023]
Abstract
In recent years, concern about the release of anthropogenic organic micropollutants referred to as contaminants of emerging concern (CECs) has been growing. The objective of this study was to find potential CECs by means of an analytical screening method referred to as comprehensive target analysis with an automated identification and quantification system (CTA-AIQS), which uses gas and liquid chromatography combined with mass spectrometry (GC-MS and LC-QTOF-MS). We used CTA-AIQS to analyze samples from a sediment core collected in Beppu Bay, Japan. With this method, we detected 80 compounds in the samples and CTA-AIQA could work to useful tool to find CECs in environmental media. Among the detected chemicals, three PAHs (anthracene, chrysene, and fluoranthene) and tris(isopropylphenyl)phosphate (TIPPP) isomers were found to increase in concentration with decreasing sediment depth. We quantified TIPPP isomers in the samples by means of targeted analysis using LC-MS/MS for confirmation. The concentration profiles, combined with previous reports indicating persistent, bioaccumulative, and toxic properties, suggest that these chemicals can be categorized as potential CECs in marine environments.
Collapse
Affiliation(s)
- Kou Nishimuta
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Daisuke Ueno
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Japan.
| | - Shin Takahashi
- Graduate School of Agriculture, Ehime University, Japan; Center for Marine Environmental Studies, Ehime University, Japan
| | - Michinobu Kuwae
- Center for Marine Environmental Studies, Ehime University, Japan
| | - Kiwao Kadokami
- Institute of Environmental Science and Technology, The University of Kitakyushu, Japan
| | | | - Hidenori Matsukami
- Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Japan
| | - Hidetoshi Kuramochi
- Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Japan
| | - Taiki Higuchi
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Yuki Koga
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Hideaki Matsumoto
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Noriko Ryuda
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan
| | - Hideki Miyamoto
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Japan
| | - Tomokazu Haraguchi
- Graduate School of Agriculture, Saga University, Saga, 840-8502, Japan; The United Graduate School of Agricultural Sciences, Kagoshima University, Japan
| | - Shin-Ichi Sakai
- Environment Preservation Research Center, Kyoto University, Japan
| |
Collapse
|
7
|
Li X, Tian T, Shang X, Zhang R, Xie H, Wang X, Wang H, Xie Q, Chen J, Kadokami K. Occurrence and Health Risks of Organic Micro-Pollutants and Metals in Groundwater of Chinese Rural Areas. ENVIRONMENTAL HEALTH PERSPECTIVES 2020; 128:107010. [PMID: 33124919 PMCID: PMC7598030 DOI: 10.1289/ehp6483] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
BACKGROUND Groundwater is a main drinking-water source for Chinese rural residents. The overall pollution status of organic micropollutants (OMPs) and metals in the groundwater and corresponding health risks are unknown. OBJECTIVES Our objective was to comprehensively screen for and assess the health risks of OMPs and metals in groundwater of rural areas in China where groundwater is used for drinking so as to provide a benchmark for monitoring and improving groundwater quality in future developments. METHODS One hundred sixty-six groundwater samples were collected in the rural areas of China, and 1,300 OMPs and 25 metals were screened by GC-MS, LC-QTOF/MS, and ICP-MS analysis. To assess the noncarcinogenic and carcinogenic risks of the detected pollutants, missing toxicity threshold values were extrapolated from existing databases or predicted by quantitative structure-activity relationship (QSAR) models. Monte Carlo simulation was performed to account for uncertainties in the exposure parameters and toxicity thresholds. RESULTS Two hundred thirty-three OMPs and 25 metals were detected from the 166 samples. The concentration summation for the detected OMPs ranged from 2.9 to 1.7×105ng/L among the different sampling sites. Cumulative noncarcinogenic risks for the OMPs were estimated to be negligible. However, high metal risks were calculated in 23% of the sites. Forty-two carcinogens (including 38 OMPs) were identified and the cumulative carcinogenic risks in 34% of the sites were calculated to be >10-4 (i.e., one excess cancer case in a population of 10 thousand people). The carcinogenic risks were estimated to be mainly associated with exposures to the metals, which were calculated to contribute 79% (0-100%) of the cumulative carcinogenic risks. DISCUSSION The overall status of OMPs and metals pollution in the groundwater and the corresponding health risks were determined preliminarily, which may provide a benchmark for future efforts in China to ensure the safety of drinking water for the local residents in rural areas. The joint application of QSARs and Monte Carlo simulation provided a feasible way to comprehensively assess the health risks of the large and ever-increasing number of pollutants detected in the aquatic environment. https://doi.org/10.1289/EHP6483.
Collapse
Affiliation(s)
- Xuehua Li
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Tian Tian
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Xiaochen Shang
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Ruohan Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Huaijun Xie
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Xuejian Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Hanwei Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Qing Xie
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Jingwen Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Kiwao Kadokami
- Institute of Environmental Science and Technology, University of Kitakyushu, Kitakyushu, Fukuoka, Japan
| |
Collapse
|
8
|
Sproson AD, Selby D, Suzuki K, Oda T, Kuroda J. Anthropogenic Osmium in Macroalgae from Tokyo Bay Reveals Widespread Contamination from Municipal Solid Waste. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:9356-9365. [PMID: 32551548 DOI: 10.1021/acs.est.0c01602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Human activity is influencing the global osmium cycle, driving the Os isotopic composition (187Os/188Os) of the hydrosphere and associated sedimentary material to lower values. Here, we present the Re and Os abundance and isotope systematics of macroalgae, a proxy for seawater, from Tokyo Bay to elucidate the potential sources of anthropogenic Os to the Pacific Ocean. Macroalgae from the Uraga Channel, which connects Tokyo Bay to the Pacific Ocean, record relatively low Os abundances (∼10.1 pg/g) and an 187Os/188Os of ∼0.9, indicative of surface ocean seawater. Contrastingly, macroalgae within the bay closest to central Tokyo record the highest Os abundances (∼22.8 pg/g) and lowest 187Os/188Os values (∼0.47), suggesting contamination from human activity. To determine the source of anthropogenic Os, we have developed the first Os emission inventory, based on the East Asian Air Pollutant Emission Grid database (EAGrid2010). The close relationship (R2 = 0.67 and p-value = <0.05) between Os inventories and macroalgal data suggests that municipal solid waste incinerators (MSWIs) are the dominant source of Os to Tokyo Bay. Projections for Japan estimate that 26-18+38 ng Os/m2/yr is released from MSWI smokestacks, leading to a concentration in precipitation of 26-18+38 fg/g, identifying MSWIs as a major contributor of anthropogenic Os to the hydrological cycle.
Collapse
Affiliation(s)
- Adam D Sproson
- Department of Earth Sciences, Durham University, Durham DH1 3LE, U.K
- Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba 263-0022, Japan
| | - David Selby
- Department of Earth Sciences, Durham University, Durham DH1 3LE, U.K
- State Key Laboratory of Geological Processes and Mineral Resources, School of Earth Resources,China University of Geosciences, Wuhan, 430074 Hubei, China
| | - Katsuhiko Suzuki
- Submarine Resources Research Center, JAMSTEC, Yokosuka 237-0061, Japan
| | - Tomohiro Oda
- Global Modelling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, 20771 Maryland, United States
- Goddard Earth Sciences Technology and Research, Universities Space Research Association, Columbia, 21046-2132 Maryland, United States
| | - Junichiro Kuroda
- Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba 263-0022, Japan
| |
Collapse
|
9
|
Lai NLS, Kwok KY, Wang XH, Yamashita N, Liu G, Leung KMY, Lam PKS, Lam JCW. Assessment of organophosphorus flame retardants and plasticizers in aquatic environments of China (Pearl River Delta, South China Sea, Yellow River Estuary) and Japan (Tokyo Bay). JOURNAL OF HAZARDOUS MATERIALS 2019; 371:288-294. [PMID: 30856439 DOI: 10.1016/j.jhazmat.2019.03.029] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 03/05/2019] [Accepted: 03/06/2019] [Indexed: 06/09/2023]
Abstract
The concentrations and spatial distribution of 14 organophosphorus flame retardants (OPFRs) and plasticizers were studied in aquatic environments of China, namely, the Pearl River Delta (PRD), South China Sea (SCS) and Yellow River Estuary (YRE), as well as Tokyo Bay (TB) in Japan. These locations were characterized by different levels of socioeconomic development and human activities. The spatial pattern of OPFRs revealed their ubiquity along the coasts of China and Japan; the concentrations ranged from 15 to 1790, 1 to 147, 253 to 1720, and 107 to 284 ng L-1 in the PRD, SCS, YRE and TB, respectively. The most frequently detected OPFR was triethyl phosphate (TEP), followed by triphenylphosphine oxide (TPPO) and tris(2-chloroethyl) phosphate (TCEP). A positive relationship (R2 = 0.668, p = 0.004) was observed between OPFR contamination and socioeconomic activity, measured by gross domestic product (GDP) per capita, for the studied cities in China and Japan. The results suggest that an increase in manufacturing and construction activities in the studied areas may aggravate coastal contamination with OPFRs. The potential threat to aquatic organisms from exposure to TCEP, a suspected carcinogen, was revealed by the hazard quotient (HQ) and probabilistic assessments. Further investigation of OPFR exposure in the aquatic environment of China is urgently required.
Collapse
Affiliation(s)
- Nelson L S Lai
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China
| | - Karen Y Kwok
- State Key Laboratory of Marine Pollution (SKLMP), Department of Chemistry, Research Centre for the Oceans and Human Health, Shenzhen Key Laboratory for Sustainable Use of Marine Biodiversity, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Xin-Hong Wang
- State Key Laboratory of Marine Environmental Science, Xiamen University, China
| | - Nobuyoshi Yamashita
- National Institute of Advanced Industrial Science and Technology (AIST), Japan
| | - Guijian Liu
- School of Earth and Space Sciences, University of Science and Technology of China, China
| | - Kenneth M Y Leung
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Paul K S Lam
- State Key Laboratory of Marine Pollution (SKLMP), Department of Chemistry, Research Centre for the Oceans and Human Health, Shenzhen Key Laboratory for Sustainable Use of Marine Biodiversity, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - James C W Lam
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China; State Key Laboratory of Marine Pollution (SKLMP), Department of Chemistry, Research Centre for the Oceans and Human Health, Shenzhen Key Laboratory for Sustainable Use of Marine Biodiversity, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| |
Collapse
|
10
|
Matsuo Y, Miyawaki T, Kadokami K, Nakai K, Tatsuta N, Nakata H, Matsumura T, Nagasaka H, Nakamura M, Sato K, Tobo KI, Kakimoto R, Someya T, Ueno D. Development of a novel scheme for rapid screening for environmental micropollutants in emergency situations (REPE) and its application for comprehensive analysis of tsunami sediments deposited by the great east Japan earthquake. CHEMOSPHERE 2019; 224:39-47. [PMID: 30807912 DOI: 10.1016/j.chemosphere.2019.02.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 02/04/2019] [Accepted: 02/12/2019] [Indexed: 06/09/2023]
Abstract
The tsunami triggered by the Great East Japan Earthquake of March 2011, the strongest quake ever recorded in Japan, deposited tsunami sediments along the coastline of the affected area. Because the sediments contained a wide variety of hazardous chemicals, including organic micropollutants, a method for rapidly evaluating the environmental and human health risks of such chemicals is necessary. For this purpose, we propose a novel three-step scheme designated "rapid screening for environmental micropollutants in emergency situations (REPE)". In the first step, samples are subjected to target screening analysis using an automated identification and quantification system (TSA-AIQS) involving gas chromatography mass spectrometry (GC-MS). In the second step, the chemicals detected by TSA-AIQS analysis are quantified precisely by conventional target analysis. The third step is risk assessment of the target chemicals. TSA-AIQS analysis of the tsunami sediments detected 63 substances, including polycyclic aromatic hydrocarbons (both native and alkylated PAHs) at high concentrations. These PAHs were precisely quantified by target analysis, and the concentrations were used to assess the health risks posed by oral intake, which were found to be negligible. Our results suggest that the REPE scheme will be useful for rapid, comprehensive screening and risk assessment in emergency situations.
Collapse
Affiliation(s)
- Yuki Matsuo
- Graduate School of Agriculture, Saga University, Japan
| | | | - Kiwao Kadokami
- Institute of Environmental Science and Technology, The University of Kitakyushu, Japan
| | - Kunihiko Nakai
- Department of Development and Environmental Medicine, Graduate School of Medicine, Tohoku University, Japan
| | - Nozomi Tatsuta
- Department of Development and Environmental Medicine, Graduate School of Medicine, Tohoku University, Japan
| | - Haruhiko Nakata
- Faculty of Advanced Science and Technology, Kumamoto University, Japan
| | - Toru Matsumura
- Institute of Environmental Ecology, IDEA Consultants, Inc., Japan
| | | | | | | | | | - Risa Kakimoto
- Graduate School of Agriculture, Saga University, Japan
| | | | - Daisuke Ueno
- Graduate School of Agriculture, Saga University, Japan.
| |
Collapse
|
11
|
Duong HT, Kadokami K, Trinh HT, Phan TQ, Le GT, Nguyen DT, Nguyen TT, Nguyen DT. Target screening analysis of 970 semi-volatile organic compounds adsorbed on atmospheric particulate matter in Hanoi, Vietnam. CHEMOSPHERE 2019; 219:784-795. [PMID: 30572232 DOI: 10.1016/j.chemosphere.2018.12.096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/08/2018] [Accepted: 12/11/2018] [Indexed: 06/09/2023]
Abstract
Vietnam's rapid economic development has resulted in dramatic increases in construction and the number of transportation vehicles. There is now growing public concern regarding increasing air pollution, especially in big cities; however, little information is available on air quality, particularly regarding semi-volatile organic compounds (SVOCs) adsorbed on atmospheric particulate matter. Here, we determined the frequency and concentrations of 970 SVOCs in 48 air particle samples collected by means of high-volume air sampling in Hanoi, Vietnam, by using a target screening method and a gas chromatography-mass spectrometry database. A total of 118 compounds (12.2% of the target compounds) were detected at least once in the samples, and the number of chemicals detected in each sample ranged from 85 to 103 (median, 92). For samples collected near a heavily trafficked road, the concentrations of target compounds in the samples were higher in samples collected during the day than in those collected at night, whereas the opposite was true for samples collected in a highly populated residential area with industrial activities related to the production of fresh noodles. Sixteen PAHs were detected at high concentrations in nearly 100% of the samples. Eighteen pesticides were detected, with permethrin being detected the most frequently (>70% samples), which can be explained by the use of permethrin-based Permecide 50 EC for dengue fever control during the sampling period. Endocrine-disrupting chemicals (i.e., bisphenol A, 4-nitrophenol) and pharmaceuticals and personal care products (diethyltoluamide, caffeine) were detected in over 90% of the samples. Seven sterols, five phthalate compounds and five organophosphorus flame retardants were detected in the samples. This is the first comprehensive survey of SVOCs adsorbed on atmospheric particulate matter in Vietnam, and as such, this study provides important new information about the frequency and concentrations of atmospheric SVOC contamination. The variety of chemicals detected in this study implies an abundance of pollution sources; further investigations to determine these pollution sources and the risks posed by the detected SVOCs to human health are warranted.
Collapse
Affiliation(s)
- Hanh Thi Duong
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam.
| | - Kiwao Kadokami
- Institute of Environmental Science and Technology, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka 808-0135, Japan
| | - Ha Thu Trinh
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam
| | - Thang Quang Phan
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam
| | - Giang Truong Le
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam
| | - Dung Trung Nguyen
- Le Quy Don Technical University, 236 Hoang Quoc Viet Street, Bac Tu Liem District, Hanoi, Viet Nam
| | - Thao Thanh Nguyen
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam
| | - Dien Tran Nguyen
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam
| |
Collapse
|
12
|
Anh HQ, Tomioka K, Tue NM, Tuyen LH, Chi NK, Minh TB, Viet PH, Takahashi S. A preliminary investigation of 942 organic micro-pollutants in the atmosphere in waste processing and urban areas, northern Vietnam: Levels, potential sources, and risk assessment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 167:354-364. [PMID: 30359902 DOI: 10.1016/j.ecoenv.2018.10.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/01/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
Of 942 organic micro-pollutants screened, 167 compounds were detected at least once in the atmosphere in some primitive waste processing sites and an urban area in northern Vietnam by using a polyurethane foam-based passive air sampling (PUF-PAS) method and an Automated Identification and Quantification System with a Database (AIQS-DB) for GC-MS. Total concentrations of organic pollutants were higher in samples collected from an urban area of Hanoi city (2300-2600 ng m-3) as compared with those from an end-of-life vehicle (ELV) dismantling area in Bac Giang (900-1700 ng m-3) and a waste recycling cooperative in Thai Nguyen (870-1300 ng m-3). Domestic chemicals (e.g., n-alkanes, phthalate ester plasticizers, and synthetic phenolic antioxidants) dominated the organic pollutant patterns in all the samples, especially in the urban area. Pesticides (e.g., permethrins, chlorpyrifos, and propiconazole) were found in the atmosphere around the ELV sites at more elevated concentrations than the other areas. Levels of polycyclic aromatic hydrocarbons and their derivatives in the Bac Giang and Thai Nguyen facilities were significantly higher than those measured in Hanoi urban houses, probably due to the waste processing activities. Daily intake doses of organic pollutants via inhalation were estimated for waste processing workers and urban residents. This study shall provide preliminary data on the environmental occurrence, potential emission sources, and effects of multiple classes of organic pollutants in urban and waste processing areas in northern Vietnam.
Collapse
Affiliation(s)
- Hoang Quoc Anh
- Center of Advanced Technology for the Environment (CATE), Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama 790-8566, Japan; The United Graduate School of Agricultural Sciences (UGAS-EU), Ehime University, 3-5-7 Tarumi, Matsuyama 790-8566, Japan; Faculty of Chemistry, VNU University of Science, Vietnam National University, 19 Le Thanh Tong, Hanoi, Vietnam
| | - Keidai Tomioka
- Center of Advanced Technology for the Environment (CATE), Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama 790-8566, Japan
| | - Nguyen Minh Tue
- Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan; Center for Environmental Technology and Sustainable Development (CETASD), VNU University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi, Vietnam
| | - Le Huu Tuyen
- Center for Environmental Technology and Sustainable Development (CETASD), VNU University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi, Vietnam
| | - Ngo Kim Chi
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Tu Binh Minh
- Faculty of Chemistry, VNU University of Science, Vietnam National University, 19 Le Thanh Tong, Hanoi, Vietnam
| | - Pham Hung Viet
- Center for Environmental Technology and Sustainable Development (CETASD), VNU University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi, Vietnam
| | - Shin Takahashi
- Center of Advanced Technology for the Environment (CATE), Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama 790-8566, Japan.
| |
Collapse
|
13
|
Dai X, Wang C, Lam JCW, Yamashita N, Yamazaki E, Horii Y, Chen W, Li X. Accumulation of quaternary ammonium compounds as emerging contaminants in sediments collected from the Pearl River Estuary, China and Tokyo Bay, Japan. MARINE POLLUTION BULLETIN 2018; 136:276-281. [PMID: 30509808 DOI: 10.1016/j.marpolbul.2018.09.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/12/2018] [Accepted: 09/15/2018] [Indexed: 06/09/2023]
Abstract
In this work, the distribution of quaternary ammonium compounds (QACs) in two dated sediment cores, collected from the Pearl River Estuary (PRE) and Tokyo Bay (TB), were investigated to understand the historical input of QACs and their diagenetic behavior in urban estuarine environments. The vertical variation profiles of QAC concentrations showed that benzylalkyldimethyl ammonium compounds (BACs) and dialkyldimethyl ammonium compounds (DADMACs) were widely used during 1970s and 1980s both in China and Japan. The declining environmental concentrations of QACs suggested a compositional change of commodities and the effectiveness of emission control strategies. For the individual QAC homologues, BAC homologues decreased significantly over time, while DADMAC compositions remained relatively stable. The differences in concentration and composition profiles of BACs and DADMACs in the sediment cores provided useful information on the patterns of use of QACs in China and Japan, as well as their diagenetic behaviors in the sediments.
Collapse
Affiliation(s)
- Xi Dai
- State Key Laboratory of Marine Environmental Science, College of Oceanography & Earth Science, Xiamen University, Xiamen 361100, China
| | - Cuicui Wang
- State Key Laboratory of Marine Environmental Science, College of Oceanography & Earth Science, Xiamen University, Xiamen 361100, China
| | - James C W Lam
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China
| | - Nobuyoshi Yamashita
- National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Eriko Yamazaki
- National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Yuichi Horii
- Center for Environmental Science in Saitama, 914 Kamitanadare, Kazo, Saitama 347-0115, Japan
| | - Weifang Chen
- State Key Laboratory of Marine Environmental Science, College of Oceanography & Earth Science, Xiamen University, Xiamen 361100, China
| | - Xiaolin Li
- State Key Laboratory of Marine Environmental Science, College of Oceanography & Earth Science, Xiamen University, Xiamen 361100, China.
| |
Collapse
|
14
|
Wang J, Tian Z, Huo Y, Yang M, Zheng X, Zhang Y. Monitoring of 943 organic micropollutants in wastewater from municipal wastewater treatment plants with secondary and advanced treatment processes. J Environ Sci (China) 2018; 67:309-317. [PMID: 29778164 DOI: 10.1016/j.jes.2017.09.014] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/27/2017] [Accepted: 09/28/2017] [Indexed: 05/28/2023]
Abstract
To perform a systematic survey on the occurrence and removal of micropollutants during municipal wastewater treatment, 943 semi-volatile organic chemicals in 32 wastewater samples including influents of secondary treatments, secondary effluents and final effluents (effluents of advanced treatments), which were collected from seven full-scale municipal wastewater treatment plants (MWTPs) in China, were examined by gas chromatography-mass spectrometry (GC-MS) coupled with an automated identification and quantification system with a database (AIQS-DB). In total, 196 and 145 chemicals were detected in secondary and final effluents, respectively. The majority of the total concentrations (average removal efficiency, 87.0%±5.9%) of the micropollutants were removed during secondary treatments. However, advanced treatments achieved different micropollutant removal extents from secondary effluents depending on the different treatment processes employed. Highly variable removal efficiencies of total concentrations (32.7%-99.3%) were observed among the different advanced processes. Among them, ozonation-based processes could remove 70.0%-80.9% of the total concentrations of studied micropollutants. The potentially harmful micropollutants, based on their detection frequency and concentration in secondary and final effluents, were polycyclic aromatic hydrocarbons (PAHs) (2-methylnaphthalene, fluoranthene, pyrene, naphthalene and phenanthrene), phosphorus flame retardants (tributyl phosphate (TBP), tris(2-chloroethyl) phosphate (TCEP) and tris(1,3-dichloro-2-propyl) phosphate (TDCP)), phthalates (bis(2-ethylhexyl)phthalate (DEHP)), benzothiazoles (benzothiazole, 2-(methylthio)-benzothiazol, and 2(3H)-benzothiazolone) and phenol. This study indicated that the presence of considerable amounts of micropollutants in secondary effluent creates the need for suitable advanced treatment before their reuse.
Collapse
Affiliation(s)
- Juan Wang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Zhe Tian
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yingbin Huo
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Min Yang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingcan Zheng
- North China Municipal Engineering Design & Research Institute, Tianjin 300074, China
| | - Yu Zhang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| |
Collapse
|
15
|
Škrbić BD, Kadokami K, Antić I, Jovanović G. Micro-pollutants in sediment samples in the middle Danube region, Serbia: occurrence and risk assessment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:260-273. [PMID: 29032526 DOI: 10.1007/s11356-017-0406-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 10/03/2017] [Indexed: 06/07/2023]
Abstract
This is the first comprehensive study on the occurrence of 940 semi-volatile organic compounds including sterols, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), pesticides, plasticizers, and other emerging compounds in 10 river and canal sediments collected in northern Serbia. For quantification of investigated compounds GC-MS-MS (selected reaction monitoring) and GC-MS (using both selected ion monitoring and total ion monitoring) methods were used. The number of detected compounds was in the range of 85-117, while the sum of the concentrations varied from 959 μg/kg dry-wt to 84,445 μg/kg dry-wt. Sterols were quantified with high frequency in nearly 100% of investigated samples suggesting that the studied rivers and canals have been contaminated by sewage. Regarding persistent organic compounds, p,p'-DDE, p,p'-DDD, and o,p'-DDT were the dominant members of organochlorine pesticides (OCPs). The concentration range of 11 quantified pesticides of 452 analyzed was from 0.564 to 61.6 μg/kg dry-wt, while the concentration range of 47 quantified PCBs of 90 analyzed was from 0.928 to 32.1 μg/kg dry-wt. OCPs (DDE, DDD, and γ-HCH) and several PAHs (fluoranthene, pyrene, phenanthrene, chrysene, benzo(a)anthracene, benzo(a)pyrene) exceeded the maximum values of the sediment quality guidelines. Contents of domestic compounds comprise a large proportion of the total contaminant concentration. Overall, the study reveals that river sediments in Vojvodina Province were moderately polluted mainly by domestic wastewater. The toxic equivalent quantity (TEQ) relative to benzo(a)pyrene and 2,3,7,8-tetrachlorodibenzodioxin for seven carcinogenic PAHs and six quantified dioxin-like PCBs ranged from 3.59 to 103 μg TEQ/kg and from 0.001 × 10-3 to 2.10 × 10-3 μg TEQ/kg, respectively, and were in the range or lower than the literature published data.
Collapse
Affiliation(s)
- Biljana D Škrbić
- Faculty of Technology, Laboratory for Chemical Contaminants and Sustainable Development, University of Novi Sad, Bulevar cara Lazara 1, Novi Sad, 21000, Serbia.
| | - Kiwao Kadokami
- Institute of Environmental Engineering, University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka, 808-0135, Japan
| | - Igor Antić
- Faculty of Technology, Laboratory for Chemical Contaminants and Sustainable Development, University of Novi Sad, Bulevar cara Lazara 1, Novi Sad, 21000, Serbia
| | - Grigorije Jovanović
- Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000, Novi Sad, Republic of Serbia
| |
Collapse
|
16
|
Chau HTC, Kadokami K, Ifuku T, Yoshida Y. Development of a comprehensive screening method for more than 300 organic chemicals in water samples using a combination of solid-phase extraction and liquid chromatography-time-of-flight-mass spectrometry. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:26396-26409. [PMID: 28948438 DOI: 10.1007/s11356-017-9929-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 08/07/2017] [Indexed: 05/25/2023]
Abstract
A comprehensive screening method for 311 organic compounds with a wide range of physicochemical properties (log Pow -2.2-8.53) in water samples was developed by combining solid-phase extraction with liquid chromatography-high-resolution time-of-flight mass spectrometry. Method optimization using 128 pesticides revealed that tandem extraction with styrene-divinylbenzene polymer and activated carbon solid-phase extraction cartridges at pH 7.0 was optimal. The developed screening method was able to extract 190 model compounds with average recovery of 80.8% and average relative standard deviations (RSD) of 13.5% from spiked reagent water at 0.20 μg L-1, and 87.1% recovery and 10.8% RSD at 0.05 μg L-1. Spike-recovery testing (0.20 μg L-1) using real sewage treatment plant effluents resulted in an average recovery and average RSD of 190 model compounds of 77.4 and 13.1%, respectively. The method was applied to the influent and effluent of five sewage treatment plants in Kitakyushu, Japan, with 29 out of 311 analytes being observed at least once. The results showed that this method can screen for a large number of chemicals with a wide range of physicochemical properties quickly and at low operational cost, something that is difficult to achieve using conventional analytical methods. This method will find utility in target screening of hazardous chemicals with a high risk in environmental waters, and for confirming the safety of water after environmental incidents.
Collapse
Affiliation(s)
| | | | - Tomomi Ifuku
- Kitakyushu Life Science Center, Kitakyushu, Japan
| | | |
Collapse
|
17
|
Powell DE, Suganuma N, Kobayashi K, Nakamura T, Ninomiya K, Matsumura K, Omura N, Ushioka S. Trophic dilution of cyclic volatile methylsiloxanes (cVMS) in the pelagic marine food web of Tokyo Bay, Japan. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 578:366-382. [PMID: 27839765 DOI: 10.1016/j.scitotenv.2016.10.189] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 10/03/2016] [Accepted: 10/25/2016] [Indexed: 06/06/2023]
Abstract
Bioaccumulation and trophic transfer of cyclic volatile methylsiloxanes (cVMS), specifically octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), and dodecamethylcyclohexasiloxane (D6), were evaluated in the pelagic marine food web of Tokyo Bay, Japan. Polychlorinated biphenyl (PCB) congeners that are "legacy" chemicals known to bioaccumulate in aquatic organisms and biomagnify across aquatic food webs were used as a benchmark chemical (CB-180) to calibrate the sampled food web and as a reference chemical (CB-153) to validate the results. Trophic magnification factors (TMFs) were calculated from slopes of ordinary least-squares (OLS) regression models and slopes of bootstrap regression models, which were used as robust alternatives to the OLS models. Various regression models were developed that incorporated benchmarking to control bias associated with experimental design, food web dynamics, and trophic level structure. There was no evidence from any of the regression models to suggest biomagnification of cVMS in Tokyo Bay. Rather, the regression models indicated that trophic dilution of cVMS, not trophic magnification, occurred across the sampled food web. Comparison of results for Tokyo Bay to results from other studies indicated that bioaccumulation of cVMS was not related to type of food web (pelagic vs demersal), environment (marine vs freshwater), species composition, or location. Rather, results suggested that differences between study areas was likely related to food web dynamics and variable conditions of exposure resulting from non-uniform patterns of organism movement across spatial concentration gradients.
Collapse
|
18
|
Kong L, Kadokami K, Duong HT, Chau HTC. Screening of 1300 organic micro-pollutants in groundwater from Beijing and Tianjin, North China. CHEMOSPHERE 2016; 165:221-230. [PMID: 27657814 DOI: 10.1016/j.chemosphere.2016.08.084] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 08/13/2016] [Accepted: 08/18/2016] [Indexed: 05/24/2023]
Abstract
Groundwater contamination in China has become a growing public concern because of the country's rapid economic development and dramatically increasing fresh water demand. However, there is little information available on groundwater quality, particularly with respect to trace organic micro-pollutants contamination. This study was undertaken to investigate the occurrence of 1300 pollutants at 27 groundwater sites in Beijing and Tianjin, North China. Seventy-eight chemicals (6% of the targeted compounds) were detected in at least one sampling point; observed chemicals included polycyclic aromatic hydrocarbons (PAHs), pesticides, plasticizers, antioxidants, pharmaceuticals and other emerging compounds. Chemicals with a frequency of detection over 70% were 2-ethyl-1-hexanol (median concentration 152 ng L-1), benzyl alcohol (582 ng L-1), 2-phenoxy-ethanol (129 ng L-1), acetophenone (74 ng L-1), pentamethylbenzene (51 ng L-1), nitrobenzene (40 ng L-1) and dimethyl phthalate (64 ng L-1). Pesticides with concentrations exceeding the EU maximum residual limits (MRL) of 0.1 μg L-1 were 1,4-dichlorobenzene, oxadixyl, diflubenzuron, carbendazim, diuron, and the E and Z isomers of dimethomorph. Naphthalene and its 7 alkylated derivatives were widely observed at maximum concentration up to 30 μg L-1, which, although high, is still below the Australian drinking water guidelines of 70 μg L-1. The risk assessment indicated there is no human health risk through the oral consumption from most wells, although there were four wells in which total seven compounds were found at the concentrations with a potential adverse health effects. This work provides a wide reconnaissance on broad spectrum of organic micro-contaminants in groundwater in North China.
Collapse
Affiliation(s)
- Lingxiao Kong
- Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka, 808-0135, Japan
| | - Kiwao Kadokami
- Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka, 808-0135, Japan.
| | - Hanh Thi Duong
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam
| | - Hong Thi Cam Chau
- Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka, 808-0135, Japan
| |
Collapse
|
19
|
Duran R, Cravo-Laureau C. Role of environmental factors and microorganisms in determining the fate of polycyclic aromatic hydrocarbons in the marine environment. FEMS Microbiol Rev 2016; 40:814-830. [PMID: 28201512 PMCID: PMC5091036 DOI: 10.1093/femsre/fuw031] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 12/28/2015] [Accepted: 07/24/2016] [Indexed: 11/14/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widespread in marine ecosystems and originate from natural sources and anthropogenic activities. PAHs enter the marine environment in two main ways, corresponding to chronic pollution or acute pollution by oil spills. The global PAH fluxes in marine environments are controlled by the microbial degradation and the biological pump, which plays a role in particle settling and in sequestration through bioaccumulation. Due to their low water solubility and hydrophobic nature, PAHs tightly adhere to sediments leading to accumulation in coastal and deep sediments. Microbial assemblages play an important role in determining the fate of PAHs in water and sediments, supporting the functioning of biogeochemical cycles and the microbial loop. This review summarises the knowledge recently acquired in terms of both chronic and acute PAH pollution. The importance of the microbial ecology in PAH-polluted marine ecosystems is highlighted as well as the importance of gaining further in-depth knowledge of the environmental services provided by microorganisms.
Collapse
Affiliation(s)
- Robert Duran
- Equipe Environnement et Microbiologie, MELODY group, Université de Pau et des Pays de l'Adour, Pau Cedex, France
| | - Cristiana Cravo-Laureau
- Equipe Environnement et Microbiologie, MELODY group, Université de Pau et des Pays de l'Adour, Pau Cedex, France
| |
Collapse
|
20
|
Quesada-García A, Valdehita A, del Olmo I, Gómez MJ, Navas JM. Detection of effects caused by very low levels of contaminants in riverine sediments through a combination of chemical analysis, in vitro bioassays, and farmed fish as sentinel. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2015; 68:663-677. [PMID: 25578768 DOI: 10.1007/s00244-014-0127-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 12/30/2014] [Indexed: 06/04/2023]
Abstract
Aquatic organisms are often exposed to mixtures of low levels of pollutants whose presence and effects can pass easily unnoticed if only traditional monitoring strategies are employed. The main aim of this work was to assess the presence and effects of trace levels of pollutants in a scarcely affected area through the combination of chemical and biological approaches. Sediments were collected along a river with little anthropogenic pressure and assayed for cytochrome P450 (Cyp1a)-dependent ethoxyresorufin-O-deethylase (EROD) activity with the rainbow trout gonadal cell line RTG-2. Chemical analyses were performed in these sediments using two-dimensional gas chromatography-time-of-flight mass spectrometry. Sediment samples induced EROD activity, and chemical analyses evidenced the presence of a wide variety of contaminants in the range of nanograms per gram of dry weight. Correlation analysis between EROD induction and chemical analyses data showed an r value of 0.840 (p < 0.05). In addition, fish from a fish farm located downstream of the sampling points exhibited high hepatic EROD levels as well as an induced expression of cyp1a and cyp3a. In conclusion, only an appropriate combination of biological and chemical techniques allowed the detection of the presence of trace levels of contaminants in a theoretically nonaffected river.
Collapse
Affiliation(s)
- Alba Quesada-García
- Departamento de Medio Ambiente, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de la Coruña Km 7.5, 28040, Madrid, Spain,
| | | | | | | | | |
Collapse
|
21
|
Nishijima W, Umehara A, Okuda T, Nakai S. Variations in macrobenthic community structures in relation to environmental variables in the Seto Inland Sea, Japan. MARINE POLLUTION BULLETIN 2015; 92:90-98. [PMID: 25624011 DOI: 10.1016/j.marpolbul.2014.12.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 12/18/2014] [Accepted: 12/30/2014] [Indexed: 06/04/2023]
Abstract
A data set of 425 sites investigated by the Ministry of the Environment in 2001-2005 was used to evaluate the current sediment situation and its effect on macrobenthic community structure in the Seto Inland Sea, Japan. Cluster analysis and principle component analysis of sediments using physico-chemical parameters revealed that total organic carbon, mud, sulfide contents, and oxidation-reduction potential were important parameters influencing macrobenthic population size and biodiversity. A total organic carbon of 1 mg g(-1) interval was highly negatively correlated with two biodiversity indices in the range of 1-20 mg g(-1). Overall, 42% of total sites were organically enriched with much lower macrobenthic population sizes and biodiversity, while 26% were characterized by sandy sediment with a high population size and high proportion of Arthropoda. Nemertea sp., Glycera sp., Notomastus sp. and Ophiophragmus japonicus were common macrobenthos, while Theora fragilis and Ptychoderidae were typical macrobenthos in organically enriched sediments.
Collapse
Affiliation(s)
- Wataru Nishijima
- Environmental Research and Management Center, Hiroshima University, 1-5-3, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8513, Japan.
| | - Akira Umehara
- Environmental Research and Management Center, Hiroshima University, 1-5-3, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8513, Japan
| | - Tetsuji Okuda
- Environmental Research and Management Center, Hiroshima University, 1-5-3, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8513, Japan
| | - Satoshi Nakai
- Graduate School of Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| |
Collapse
|
22
|
Kong L, Kadokami K, Wang S, Duong HT, Chau HTC. Monitoring of 1300 organic micro-pollutants in surface waters from Tianjin, North China. CHEMOSPHERE 2015; 122:125-130. [PMID: 25479805 DOI: 10.1016/j.chemosphere.2014.11.025] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 11/07/2014] [Accepted: 11/08/2014] [Indexed: 05/25/2023]
Abstract
In spite of the quantities and species of chemicals dramatically increased with rapid economic growth in China in the last decade, the focus of environmental research was mainly on limited number of priority pollutants. Therefore, to elucidate environmental pollution by organic micro-pollutants, this work was conducted as the first systematic survey on the occurrence of 1300 substances in 20 surface water samples of Tianjin, North China, selected as a representative area of China. The results showed the presence of 227 chemicals. The most relevant compounds in terms of frequency of detection and median concentration were bis(2-ethylhexyl) phthalate (100%; 0.26μgL(-1)), siduron (100%; 0.20μgL(-1)), lidocaine (100%; 96ngL(-1)), antipyrine (100%; 76ngL(-1)), caffeine (95%; 0.28μgL(-1)), cotinine (95%; 0.20μgL(-1)), phenanthrene (95%; 0.17μgL(-1)), metformin (90%; 0.61μgL(-1)), diethyl phthalate (90%; 0.19μgL(-1)), quinoxaline-2-carboxylic acid (90%; 0.14μgL(-1)), 2-(methylthio)-benzothiazole (85%; 0.11μgL(-1)) and anthraquinone (85%; 54ngL(-1)). Cluster analysis discriminated three highly polluted sites from others based on data similarity. Principle component analysis identified four factors, corresponding to industrial wastewater, domestic discharge, tire production and atmospheric deposition, accounting for 78% of the total variance in the water monitoring data set. This work provides a wide reconnaissance on broad spectrum of organic micro-contaminants in surface waters in China, which indicates that the aquatic environment in China has been polluted by a large number of chemicals.
Collapse
Affiliation(s)
- Lingxiao Kong
- Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka 808-0135, Japan
| | - Kiwao Kadokami
- Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka 808-0135, Japan.
| | - Shaopo Wang
- Faculty of Environmental and Municipal Engineering, Tianjin Chengjian University, No 26 Jinjing Road, Xiqing District, Tianjin 300384, China
| | - Hanh Thi Duong
- Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka 808-0135, Japan
| | - Hong Thi Cam Chau
- Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu, Fukuoka 808-0135, Japan
| |
Collapse
|