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He TT, Zhang T, Liu SB, Shi JC, Huang YS, Zheng HP, Liu WH. Toxicological effects benzotriazole to the marine scallop Chlamys nobilis: a 2-month exposure study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:10306-10318. [PMID: 30761489 DOI: 10.1007/s11356-019-04201-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 01/08/2019] [Indexed: 05/23/2023]
Abstract
Benzotriazole and its associated derivatives (BTs) are widely used as ultraviolet stabilizers and corrosion inhibitors. They have been extensively found in marine environments and are bioaccumulative through the food chain. However, the toxicities of BTs to marine organisms are seldom identified and no assessment has been conducted for filter-feeding bivalves. In this study, a marine scallop Chlamys nobilis was exposed to 0, 0.01, 0.1, and 1.0 mg/L of BT for 60 days. Effects of BT on endocrine system, cytochrome P450 activity, antioxidant activity, and neural activity of C. nobilis were examined. The results showed that BT exerted significant estrogenic effects on both male and female scallops and inhibited EROD activities of C. nobilis even at 0.01 mg/L level. BT at ≥ 0.01 mg/L levels also caused significant oxidative stress on C. nobilis. Moreover, most of the adverse effects of BT to C. nobilis were found from day 35 and 0.01 mg/L was the lowest concentration with observed effects, showing the long-term toxic effects of BT to C. nobilis. Thus, the adverse effects of BT and its derivatives to marine benthic communities deserve more attention in future research.
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Affiliation(s)
- Tang-Tian He
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
- State Key Laboratory in Marine Pollution, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Tao Zhang
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Shi-Bo Liu
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
- Songliao River Basin Water Environment Monitoring Center, Changchun, Jilin, 130021, People's Republic of China
| | - Jing-Chun Shi
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Yi-Sheng Huang
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Huai-Ping Zheng
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Wen-Hua Liu
- Marine Biology Institute, Shantou University, Shantou, Guangdong, 515063, People's Republic of China.
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52
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Watanabe Y, Hattori S, Fujino C, Tachibana K, Kojima H, Yoshinari K, Kitamura S. Effects of benzotriazole ultraviolet stabilizers on rat PXR, CAR and PPARα transcriptional activities. ACTA ACUST UNITED AC 2019. [DOI: 10.2131/fts.6.57] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
| | | | - Chieri Fujino
- Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Ken Tachibana
- Faculty of Pharmaceutical Sciences, Sanyo-Onoda City University
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53
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Li Z, Li W, Zha J, Chen H, Martyniuk CJ, Liang X. Transcriptome analysis reveals benzotriazole ultraviolet stabilizers regulate networks related to inflammation in juvenile zebrafish (Danio rerio) brain. ENVIRONMENTAL TOXICOLOGY 2019; 34:112-122. [PMID: 30315675 DOI: 10.1002/tox.22663] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 09/22/2018] [Accepted: 09/23/2018] [Indexed: 06/08/2023]
Abstract
Benzotriazole ultraviolet stabilizers (BUVSs) are widely applied ultraviolet absorbing compounds in industrial materials and personal care products. Due to their ubiquitous use and reports of bio-accumulation in aquatic organisms, these compounds are significant environmental pollutants; however, data are limited for BUVSs toxicity. In this study, juvenile zebrafish (Danio rerio) were exposed to 4 commonly used BUVSs (UV-234, UV-326, UV-329, and UV-P) at one dose of 10 or 100 μg/L for 28 days. To characterize the underlying mechanisms of different BUVSs-induced toxicities, we performed global transcriptome sequencing (RNA-Seq) in the brain (100 μg/L). There were 390, 575, 483, and 470 differentially expressed genes (DEGs) detected following UV-234, UV-326, UV-329, and UV-P exposure at 100 μg/L, respectively. Only 59 genes were identified as DEGs following exposure to each of the BUVSs, suggesting that these chemicals can induce unique responses in fish. Noteworthy was that there were 81 common gene networks (~10%) identified following exposure to BUVSs, many of which were related to inflammation and immune function. Uniquely regulated pathways affected by different BUVSs included those related to mitochondrial respiration, interleukin 1/brain-damaging signaling, dopaminergic signaling, and adrenergic receptor cascades. Furthermore, quantitative PCR (qPCR) results revealed that mgst1 levels were increased in fish from the 100 μg/L UV-329 treatment, while the expression of pck2 was significantly down-regulated in fish from both the 10 and 100 μg/L UV-P treatment. Transcriptomic data suggest that BUVSs can alter mitochondrial bioenergetics, alter expression of a broad range of genes in the oxidative stress response, and can induce pathways related to the immune system in zebrafish brain.
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Affiliation(s)
- Zhitong Li
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, China
| | - Wenjing Li
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, China
| | - Jinmiao Zha
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Huihui Chen
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
| | - Christopher J Martyniuk
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, Florida
| | - Xuefang Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, China
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54
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Liang X, Adamovsky O, Souders CL, Martyniuk CJ. Biological effects of the benzotriazole ultraviolet stabilizers UV-234 and UV-320 in early-staged zebrafish (Danio rerio). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 245:272-281. [PMID: 30439637 DOI: 10.1016/j.envpol.2018.10.130] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 10/25/2018] [Accepted: 10/30/2018] [Indexed: 05/25/2023]
Abstract
Among the benzotriazole ultraviolet stabilizers (BUVSs), UV-234 and UV-320 are frequently detected in aquatic ecosystem. Despite the fact that these chemicals are present in low ng/L levels in surface water, they show high bio-accumulation potential and pose exposure risks to aquatic organisms. However, there are limited toxicological data available in fish. In this study, zebrafish embryos were exposed to 0.01, 0.1 and 1 μM UV-234 or UV-320 for up to 6 days. Developmental toxicity as well as effects on mitochondrial bioenergetics, immune system responses, and locomotor activity in zebrafish were measured. After UV-234 treatment (0.1-1 μM), hatching time of embryos was increased compared to controls. There was also a ∼20-40% reduction in non-mitochondrial respiration and oligomycin-dependent mitochondrial respiration in embryos treated with 1 μM UV-234 for 24 and 48 h respectively; conversely basal respiration and non-mitochondrial respiration were increased ∼20-30% in embryos treated with 1 μM UV-320 at 48 h. Transcript levels of sod1 were down-regulated with BUVSs while sod2 mRNA was highly up-regulated with both UV-234 and UV-320, suggesting an oxidative damage response. Considering that mitochondrial signaling regulates innate immune pathways, we measured the expression of immune related transcripts (tlr5a, tlr5b, mmp9, il8, tnfa, cxcl-C1c, nfkb1, and ifng). Of these, only il8 and cxcl-C1c mRNA were decreased in response to 0.1 μM UV-320. To associate early molecular events with behavior, locomotor activity was assessed. UV-234 reduced larval activity in a dark photokinesis assay by ∼15%, however behavioral responses at environmentally-relevant concentrations of BUVSs were not consistent across experiments nor BUVSs. These data suggest that BUVSs can perturb mitochondrial bioenergetics, embryonic development, and locomotor activity of zebrafish, but these responses appear to be dose-, time- and BUVSs dependent, suggesting these chemicals may have unique modes of action.
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Affiliation(s)
- Xuefang Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China; Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32611, USA
| | - Ondrej Adamovsky
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32611, USA; Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Christopher L Souders
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32611, USA
| | - Christopher J Martyniuk
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32611, USA.
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55
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Lu Z, De Silva AO, Zhou W, Tetreault GR, de Solla SR, Fair PA, Houde M, Bossart G, Muir DCG. Substituted diphenylamine antioxidants and benzotriazole UV stabilizers in blood plasma of fish, turtles, birds and dolphins from North America. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 647:182-190. [PMID: 30081360 DOI: 10.1016/j.scitotenv.2018.07.405] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/28/2018] [Accepted: 07/29/2018] [Indexed: 05/25/2023]
Abstract
Substituted diphenylamine antioxidants (SDPAs) and benzotriazole UV stabilizers (BZT-UVs) are additives used in industrial and commercial applications to prevent degradation by oxidation and are contaminants of emerging environmental concern. Little is known about the fate of these contaminants in wildlife, particularly in reptiles, birds and marine mammals. Nine SDPAs and six BZT-UVs were measured in blood plasma of seven fish species, snapping turtles (Chelydra serpentina), double-crested cormorants (Phalacrocorax auritus), and bottlenose dolphins (Tursiops truncatus) from various locations in North America. Plasma SDPAs were more frequently (90-100%) detected and with higher concentrations (median: 25-270 pg g-1, wet weight (ww)) in organisms from urban areas than rural locations (median: <method limits of quantification -136 pg g-1). The concentrations of most SDPAs generally followed the order of fish ≥ snapping turtles > double-crested cormorants > bottlenose dolphins. Of the three quantifiable BZT-UVs, 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV328) showed higher detection frequency in most species of fish, bird and turtle (range of 0-67%), indicating the widespread distribution of UV328 in the aquatic environment of lower Great Lakes region.
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Affiliation(s)
- Zhe Lu
- Environment and Climate Change Canada, Canada Centre for Inland Waters, Burlington, ON L7S 1A1, Canada; Institut des Sciences de la Mer de Rimouski (ISMER), Université du Québec à Rimouski (UQAR), 310, allée des Ursulines, Rimouski, QC G5L 3A1, Canada.
| | - Amila O De Silva
- Environment and Climate Change Canada, Canada Centre for Inland Waters, Burlington, ON L7S 1A1, Canada.
| | - Wenjia Zhou
- Environment and Climate Change Canada, Canada Centre for Inland Waters, Burlington, ON L7S 1A1, Canada.
| | - Gerald R Tetreault
- Environment and Climate Change Canada, Canada Centre for Inland Waters, Burlington, ON L7S 1A1, Canada.
| | - Shane R de Solla
- Environment and Climate Change Canada, Canada Centre for Inland Waters, Burlington, ON L7S 1A1, Canada.
| | - Patricia A Fair
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC 29425, United States.
| | - Magali Houde
- Environment and Climate Change Canada, Montréal, QC H2Y 2E7, Canada.
| | - Greg Bossart
- Georgia Aquarium, Atlanta, GA 30313, United States.
| | - Derek C G Muir
- Environment and Climate Change Canada, Canada Centre for Inland Waters, Burlington, ON L7S 1A1, Canada.
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56
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Apel C, Joerss H, Ebinghaus R. Environmental occurrence and hazard of organic UV stabilizers and UV filters in the sediment of European North and Baltic Seas. CHEMOSPHERE 2018; 212:254-261. [PMID: 30145417 DOI: 10.1016/j.chemosphere.2018.08.105] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/13/2018] [Accepted: 08/19/2018] [Indexed: 05/26/2023]
Abstract
UV absorbing compounds are of emerging concern due to their large production volumes, their persistence or pseudo-persistence, and their potential adverse effects. This is the first study investigating the environmental occurrence and potential hazard of organic UV stabilizers and UV filters in the North and Baltic Sea surface sediments, including the connecting Skagerrak and Kattegat straits. In total, nineteen substances were identified over the entire study area, including the rarely studied compounds ethylhexyl triazone (EHT) and bisoctrizole (UV-360). Octocrylene (OC) was the predominant compound in this study with regard to detection frequency (79%) and concentrations (up to 9.7 ng/g dw). OC accounted for more than 65% of UV stabilizer contamination in the German Bight. The triazine derivative EHT was quantified in the Rhine-Meuse-Delta and the German Bight in concentrations up to 2.0 ng/g dw. In the Baltic Sea, benzotriazole UV stabilizers accounted for 60% of the contamination, with UV-360 as the main substance. The estimated environmental hazard quotients indicated a negligible impact on benthic and sediment-dwelling organisms in the North and Baltic Seas. Region-specific contamination pattern and riverine influences were revealed. The results suggest that both direct and indirect sources contribute to the UV stabilizer and UV filter contamination in the study area.
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Affiliation(s)
- Christina Apel
- Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, Max-Planck-Straße 1, 21502, Geesthacht, Germany; Universität Hamburg, Institute of Inorganic and Applied Chemistry, Martin-Luther-King-Platz 6, 20146, Hamburg, Germany.
| | - Hanna Joerss
- Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, Max-Planck-Straße 1, 21502, Geesthacht, Germany; Universität Hamburg, Institute of Inorganic and Applied Chemistry, Martin-Luther-King-Platz 6, 20146, Hamburg, Germany
| | - Ralf Ebinghaus
- Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, Max-Planck-Straße 1, 21502, Geesthacht, Germany
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57
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Tang Z, Han X, Li G, Tian S, Yang Y, Zhong F, Han Y, Yang J. Occurrence, distribution and ecological risk of ultraviolet absorbents in water and sediment from Lake Chaohu and its inflowing rivers, China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 164:540-547. [PMID: 30149352 DOI: 10.1016/j.ecoenv.2018.08.045] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 08/13/2018] [Accepted: 08/14/2018] [Indexed: 06/08/2023]
Abstract
The available information is insufficient to enable a reliable understanding of the global distribution and effect of organic ultraviolet absorbents (UVAs) on ecosystems. Little is known about the pollution of China's lakes by these chemicals. We conducted a survey of UVAs in water and sediment from Lake Chaohu and its inflowing rivers. The UVAs were widely present in this area and the concentrations of total 12 UVAs (Σ12 UVAs) ranged between 162 and 587 ng/L in water and 9.70-178 ng/g in sediment. Benzophenone and benzophenone-3 were dominant in water, and benzophenone and octocrylene dominated in sediment. Higher concentrations of benzophenone were detected in the investigated water samples, although the contamination levels of UVAs in this study were comparable to those investigated in other areas. In addition to the inputs from the UVAs used as filters in cosmetics, the discharge from industries using UVAs as stabilizers also contributed much to the pollution in the study waters. Generally, the risk to aquatic organisms from exposure to UVAs in this area was low, but further research is needed to elucidate the fate of UVAs and to understand bioaccumulation and associated risks.
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Affiliation(s)
- Zhenwu Tang
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China; College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| | - Xue Han
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| | - Guanghui Li
- China Merchants Ecological Environmental Protection Technology Co. Ltd., Chongqing 400067, China.
| | - Shulei Tian
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Yufei Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Fuyong Zhong
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| | - Yu Han
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China.
| | - Jun Yang
- Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
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58
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Lu J, Li H, Luo Z, Lin H, Yang Z. Occurrence, distribution, and environmental risk of four categories of personal care products in the Xiangjiang River, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:27524-27534. [PMID: 30051289 DOI: 10.1007/s11356-018-2686-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 07/02/2018] [Indexed: 06/08/2023]
Abstract
The Xiangjiang River is the mother river of the Hunan Province; also, it is a stream receiving effluents from wastewater treatment plants and even sewage, providing raw water for drinking water and habitat for various kinds of aquatic organisms. Thus, the occurrence and distribution of personal care products (PCPs) in the Xiangjiang River, including seven preservatives, four anticorrosion agents, two antimicrobials, and six UV filters, were detected to evaluate their environmental risk. Of 13 detected PCPs, methyl paraben, propyl paraben, 1H-benzotriazole, 5,6-dimethyl-1H-benzotriazole, triclosan, and triclocarban were detected with a high frequency (81.4-100%), and their concentrations were up to 3173.9, 1040.4, 520.5, 15.6, 20.0, and 13.3 ng/L, respectively. Seasonal and spatial differences of the PCP distributions were observed with p < 0.05. Compared with other 37 rivers around the world, the overall pollution level of the Xiangjiang River was moderate, characterized with higher preservatives, lower anticorrosion agents and UV filters in concentration. The risk assessment revealed that methyl paraben, propyl paraben, 2-hydroxy-4-methoxybenzophenone, triclosan, and triclocarban were likely to have ecotoxicological effects on the fish, daphnias, and algae.
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Affiliation(s)
- Jing Lu
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Haipu Li
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China.
- Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, 410083, People's Republic of China.
| | - Zhoufei Luo
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Huiju Lin
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Zhaoguang Yang
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China.
- Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, 410083, People's Republic of China.
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59
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Wang J, Wang J, Liu J, Li J, Zhou L, Zhang H, Sun J, Zhuang S. The evaluation of endocrine disrupting effects of tert-butylphenols towards estrogenic receptor α, androgen receptor and thyroid hormone receptor β and aquatic toxicities towards freshwater organisms. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 240:396-402. [PMID: 29753247 DOI: 10.1016/j.envpol.2018.04.117] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 04/24/2018] [Accepted: 04/24/2018] [Indexed: 05/24/2023]
Abstract
The phenolic compounds have posed public concern for potential threats to human health and ecosystem. Tert-butylphenols (TBPs), as one group of emerging contaminants, showed potential endocrine disrupting effects and aquatic toxicities. In the present study, we detected concentrations of 2,4-DTBP ranging from <0.001 to 0.057 μg/L (detection limit: 0.001 μg/L) in drinking water source from the Qiantang River in East China in April 2016. The endocrine disrupting effects of 2-TBP, 2,4-DTBP and 2,6-DTBP toward human estrogen receptor α (ERα), androgen receptor (AR) and thyroid hormone receptor β (TRβ) were evaluated using human recombinant two-hybrid yeast bioassay. Their aquatic toxicities were investigated with indicator organisms including Photobacterium phosphoreum, Vibrio fischeri and freshwater green alga Chlamydomonas reinhardtii. 2-TBP and 2,4-DTBP exhibited moderate antagonistic effects toward human ERα and AR in a concentration-dependent manner. 2-TBP significantly inhibited the light emission of P. phosphoreum. 2-TBP, 2,4-DTBP and 2,6-DTBP significantly inhibited the growth of C. reinhardtii and reduced the chlorophyll content. Our results suggest the potential adverse effects of TBPs on human health and aquatic organisms. The data will facilitate further risk assessment of TBPs and related contaminants.
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Affiliation(s)
- Jiaying Wang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou, 510632, China
| | - Jingpeng Wang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou, 510632, China
| | - Jinsong Liu
- Zhejiang Province Environmental Monitoring Center, Hangzhou, 310005, China
| | - Jianzhi Li
- Shandong Solid Waste and Hazardous Chemicals Pollution Control Center, Ji'nan, 250117, China
| | - Lihong Zhou
- College of Environment, Chengdu University of Technology, Chengdu, 610059, China
| | - Huanxin Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Jianteng Sun
- Department of Environmental Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China
| | - Shulin Zhuang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou, 510632, China.
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60
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Damalas DE, Bletsou AA, Agalou A, Beis D, Thomaidis NS. Assessment of the Acute Toxicity, Uptake and Biotransformation Potential of Benzotriazoles in Zebrafish ( Danio rerio) Larvae Combining HILIC- with RPLC-HRMS for High-Throughput Identification. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:6023-6031. [PMID: 29683664 DOI: 10.1021/acs.est.8b01327] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The current study reports on the toxicity, uptake, and biotransformation potential of zebrafish (embryos and larvae) exposed to benzotriazoles (BTs). Acute toxicity assays were conducted. Cardiac function abnormalities (pericardial edema and poor blood circulation) were observed from the phenotypic analysis of early life zebrafish embryos after BTs exposure. For the uptake and biotransformation experiment, extracts of whole body larvae were analyzed using liquid chromatography-high-resolution tandem mass spectrometry (UPLC-Q-TOF-HRMS/MS). The utility of hydrophilic interaction liquid chromatography (HILIC) as complementary technique to reversed phase liquid chromatography (RPLC) in the identification process was investigated. Through HILIC analyses, additional biotransformation products (bio-TPs) were detected, because of the enhanced sensitivity and better separation efficiency of isomers. Therefore, reduction of false negative results was accomplished. Both oxidative (hydroxylation) and conjugative (glucuronidation, sulfation) metabolic reactions were observed, while direct sulfation proved the dominant biotransformation pathway. Overall, 26 bio-TPs were identified through suspect and nontarget screening workflows, 22 of them reported for the first time. 4-Methyl-1- H-benzotriazole (4-MeBT) demonstrated the highest toxicity potential and was more extensively biotransformed, compared to 1- H-benzotriazole (BT) and 5-methyl-1- H-benzotriazole (5-MeBT). The extent of biotransformation proved particularly informative in the current study, to explain and better understand the different toxicity potentials of BTs.
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Affiliation(s)
- Dimitrios E Damalas
- Laboratory of Analytical Chemistry, Department of Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis Zografou , 15771 Athens , Greece
| | - Anna A Bletsou
- Laboratory of Analytical Chemistry, Department of Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis Zografou , 15771 Athens , Greece
| | - Adamantia Agalou
- Developmental Biology , Biomedical Research Foundation Academy of Athens , Athens 11527 , Greece
| | - Dimitris Beis
- Developmental Biology , Biomedical Research Foundation Academy of Athens , Athens 11527 , Greece
| | - Nikolaos S Thomaidis
- Laboratory of Analytical Chemistry, Department of Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis Zografou , 15771 Athens , Greece
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61
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LU J, WANG MM, WANG Q, LI HP, YANG ZG. Determination of Benzotriazole and Its Derivatives in Aqueous Sample with Air-assisted Liquid-Liquid Microextraction Followed by High-performance Liquid Chromatography. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1016/s1872-2040(17)61082-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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62
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Apel C, Tang J, Ebinghaus R. Environmental occurrence and distribution of organic UV stabilizers and UV filters in the sediment of Chinese Bohai and Yellow Seas. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:85-94. [PMID: 29275272 DOI: 10.1016/j.envpol.2017.12.051] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 12/14/2017] [Accepted: 12/14/2017] [Indexed: 05/14/2023]
Abstract
Organic UV stabilizers and UV filters are applied to industrial materials and cosmetics worldwide. In plastics they prevent photo-induced degradation, while in cosmetics they protect human skin against harmful effects of UV radiation. This study reports on the occurrence and distribution of organic UV stabilizers and UV filters in the surface sediment of the Chinese Bohai and Yellow Seas for the first time. In total, 16 out of 21 analyzed substances were positively detected. Concentrations ranged from sub-ng/g dw to low ng/g dw. The highest concentration of 25 ng/g dw was found for octocrylene (OC) in the Laizhou Bay. In the study area, characteristic composition profiles could be identified. In Korea Bay, the dominating substances were OC and ethylhexyl salicylate (EHS). All other analytes were below their method quantification limit (MQL). Around the Shandong Peninsula, highest concentrations of benzotriazole derivatives were observed in this study with octrizole (UV-329) as the predominant compound, reaching concentrations of 6.09 ng/g dw. The distribution pattern of UV-329 and bumetrizole (UV-326) were related (Pearson correlation coefficient r > 0.98, p « 0.01 around the Shandong Peninsula), indicating an identical input pathway and similar environmental behavior.
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Affiliation(s)
- Christina Apel
- Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, 21502 Geesthacht, Germany; University of Hamburg, Institute of Inorganic and Applied Chemistry, 20146 Hamburg, Germany.
| | - Jianhui Tang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
| | - Ralf Ebinghaus
- Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, 21502 Geesthacht, Germany
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63
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Lu Z, De Silva AO, McGoldrick DJ, Zhou W, Peart TE, Cook C, Tetreault GR, Martin PA, de Solla SR. Substituted Diphenylamine Antioxidants and Benzotriazole UV Stabilizers in Aquatic Organisms in the Great Lakes of North America: Terrestrial Exposure and Biodilution. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:1280-1289. [PMID: 29286648 DOI: 10.1021/acs.est.7b05214] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Substituted diphenylamine antioxidants (SDPAs) and benzotriazole UV stabilizers (BZT-UVs) are industrial additives of emerging environmental concern. However, the bioaccumulation, biomagnification, and spatial distribution of these contaminants in the Great Lakes of North America are unknown. The present study addresses these knowledge gaps by reporting SDPAs and BZT-UVs in herring gull (Larus argentatus) eggs, lake trout (Salvelinus namaycush), and their food web in the Great Lakes for the first time. Herring gull eggs showed much higher detection frequency and concentrations of target SDPAs and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV328) than that of the whole body fish homogenate. For herring gull eggs, the samples from upper Great Lakes contained significantly greater levels of SDPAs than those eggs from lower lakes, possibly due to the differences in terrestrial food in diet. Interestingly, the predominant SDPAs in herring gull eggs were dinonyl- (C9C9) and monononyl-diphenylamine (C9) which were previously shown to be less bioaccumulative than other SDPAs in fish. In contrast, dioctyl-diphenylamine (C8C8) was the major SDPA in lake trout, and biodilution of C8C8 was observed in a Lake Superior lake trout food web. Such variations in herring gull eggs and fish indicate the differences in accumulation and elimination pathways of SDPAs and BZT-UVs and require further elucidation of these mechanisms.
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Affiliation(s)
- Zhe Lu
- Water Science & Technology Directorate and #Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada , Burlington, Ontario L7S 1A1, Canada
| | - Amila O De Silva
- Water Science & Technology Directorate and #Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada , Burlington, Ontario L7S 1A1, Canada
| | - Daryl J McGoldrick
- Water Science & Technology Directorate and #Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada , Burlington, Ontario L7S 1A1, Canada
| | - Wenjia Zhou
- Water Science & Technology Directorate and #Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada , Burlington, Ontario L7S 1A1, Canada
| | - Thomas E Peart
- Water Science & Technology Directorate and #Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada , Burlington, Ontario L7S 1A1, Canada
| | - Cyril Cook
- Water Science & Technology Directorate and #Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada , Burlington, Ontario L7S 1A1, Canada
| | - Gerald R Tetreault
- Water Science & Technology Directorate and #Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada , Burlington, Ontario L7S 1A1, Canada
| | - Pamela A Martin
- Water Science & Technology Directorate and #Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada , Burlington, Ontario L7S 1A1, Canada
| | - Shane R de Solla
- Water Science & Technology Directorate and #Ecotoxicology and Wildlife Health Division, Environment and Climate Change Canada , Burlington, Ontario L7S 1A1, Canada
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64
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Cui B, Wang C, Zhao X, Yao J, Zeng Z, Wang Y, Sun C, Liu G, Cui H. Characterization and evaluation of avermectin solid nanodispersion prepared by microprecipitation and lyophilisation techniques. PLoS One 2018; 13:e0191742. [PMID: 29360866 PMCID: PMC5779682 DOI: 10.1371/journal.pone.0191742] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 01/10/2018] [Indexed: 02/03/2023] Open
Abstract
Poorly water-soluble and photosensitive pesticide compounds are difficult to formulate as solvent-free nanoformulations with high efficacy. A avermectin solid nanodispersion with a mean particle size of 188 nm was developed by microprecipitation and lyophilisation techniques. The suspensibility and wetting time of the solid nanodispersion in water were 99.8% and 13 s, respectively, superior to those of conventional water dispersible granules and wettable powders. The anti-photolysis performance of the nanoformulation was twice that of the technical material, and the biological activity against diamondback moths was more than 1.5 times that of the conventional solid formulations while taking LC 50 as the evaluation index. Moreover, the formulation composition substantially decreased the surfactant content and avoided organic solvents. Microprecipitation combined with lyophilisation is an easy and promising method to construct solid nanoformulations for pesticides with poor water solubility and environmental sensitivity. The application of the highly effective solid nanodispersion in crop production will have a great potential in reducing chemical residues and environmental pollution.
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Affiliation(s)
- Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chunxin Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Junwei Yao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Guoqiang Liu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
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65
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Larsson M, Fraccalvieri D, Andersson CD, Bonati L, Linusson A, Andersson PL. Identification of potential aryl hydrocarbon receptor ligands by virtual screening of industrial chemicals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:2436-2449. [PMID: 29127629 PMCID: PMC5773624 DOI: 10.1007/s11356-017-0437-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 10/05/2017] [Indexed: 06/07/2023]
Abstract
We have developed a virtual screening procedure to identify potential ligands to the aryl hydrocarbon receptor (AhR) among a set of industrial chemicals. AhR is a key target for dioxin-like compounds, which is related to these compounds' potential to induce cancer and a wide range of endocrine and immune system-related effects. The virtual screening procedure included an initial filtration aiming at identifying chemicals with structural similarities to 66 known AhR binders, followed by 3 enrichment methods run in parallel. These include two ligand-based methods (structural fingerprints and nearest neighbor analysis) and one structure-based method using an AhR homology model. A set of 6445 commonly used industrial chemicals was processed, and each step identified unique potential ligands. Seven compounds were identified by all three enrichment methods, and these compounds included known activators and suppressors of AhR. Only approximately 0.7% (41 compounds) of the studied industrial compounds was identified as potential AhR ligands and among these, 28 compounds have to our knowledge not been tested for AhR-mediated effects or have been screened with low purity. We suggest assessment of AhR-related activities of these compounds and in particular 2-chlorotrityl chloride, 3-p-hydroxyanilino-carbazole, and 3-(2-chloro-4-nitrophenyl)-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2(3H)-one.
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Affiliation(s)
- Malin Larsson
- Department of Chemistry, Umeå University, SE-901 87, Umeå, Sweden
| | - Domenico Fraccalvieri
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126, Milan, Italy
| | | | - Laura Bonati
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126, Milan, Italy
| | - Anna Linusson
- Department of Chemistry, Umeå University, SE-901 87, Umeå, Sweden
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Giraudo M, Cottin G, Esperanza M, Gagnon P, Silva AOD, Houde M. Transcriptional and cellular effects of benzotriazole UV stabilizers UV-234 and UV-328 in the freshwater invertebrates Chlamydomonas reinhardtii and Daphnia magna. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2017; 36:3333-3342. [PMID: 28708270 DOI: 10.1002/etc.3908] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 04/16/2017] [Accepted: 07/09/2017] [Indexed: 06/07/2023]
Abstract
Benzotriazole ultra violet stabilizers (BZT-UVs) are compounds used in many applications and products to prevent photochemical degradation. Despite their widespread presence in aquatic ecosystems and persistence in the environment, there are very limited data on their effects and toxicity, and their modes of action remain largely unknown. The objectives of the present study were to evaluate the chronic effects of 2 BZT-UVs, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol (UV-234) and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV-328), on the freshwater green algae Chlamydomonas reinhardtii and the freshwater crustacean Daphnia magna. Organisms were exposed to 0.01 and 10 μg/L of UV-234, UV-328, as well as a mixture of the 2 compounds. Life-history endpoints (viability, reproduction, and growth) and oxidative stress-related biomarkers (gene transcription, reactive oxygen species [ROS] production, and lipid peroxidation) were measured. Daphnia magna growth, reproduction, and gene transcription were not impacted by 21-d individual or mixed exposure. After 96-h of exposure, no differences were observed on the cellular viability of C. reinhardtii for either of the 2 BZT-UVs. In the algae, results showed increased ROS production in response to UV-328 and lipid peroxidation following exposure to UV-234. Synergistic effects of the 2 BZT-UVs were evident at the transcriptional level with 2 to 6 times up-regulation of glutathione peroxidase (gpx ) in response to the mixture for all treatment conditions. The transcription of superoxide dismutase (sod), catalase (cat), and ascorbic peroxidase (apx) was also regulated by UV-234 and UV-328 in the green algae, most likely as a result of ROS production and lipid peroxidation. Results from the present study suggest potential impacts of UV-234 and UV-328 exposure on the antioxidant defense system in C. reinhardtii. Environ Toxicol Chem 2017;36:3333-3342. © 2017 Crown in the Right of Canada. Published by Wiley Periodicals Inc., on behalf of SETAC.
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Affiliation(s)
- Maeva Giraudo
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Montreal, Quebec, Canada
| | - Guillaume Cottin
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Montreal, Quebec, Canada
- Université Paris Descartes, Paris, France
| | - Marta Esperanza
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Montreal, Quebec, Canada
- Laboratorio de Microbiología, Facultad de Ciencias, Universidad da Coruña and Campus de A Zapateira, A Coruña, Spain
| | - Pierre Gagnon
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Montreal, Quebec, Canada
| | - Amila O De Silva
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Burlington, Ontario, Canada
| | - Magali Houde
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Montreal, Quebec, Canada
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67
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Molins-Delgado D, Távora J, Silvia Díaz-Cruz M, Barceló D. UV filters and benzotriazoles in urban aquatic ecosystems: The footprint of daily use products. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 601-602:975-986. [PMID: 28582743 DOI: 10.1016/j.scitotenv.2017.05.176] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 05/19/2017] [Accepted: 05/20/2017] [Indexed: 06/07/2023]
Abstract
The increased use of beauty and other daily use products, in particular those containing UV filters (UV-Fs) and benzotriazoles, results in their introduction in significant amounts into the aquatic environment. In this study, we aim to assess the occurrence and impact of UV-Fs and benzotriazoles in aquatic ecosystems in the metropolitan area of Barcelona, Spain. River water samples from the Llobregat and Besòs Rivers were analysed together with sediment, suspended particulate matter, and wastewater samples from 6 wastewater treatment plants (WWTPs) along their basins. The analysis of 6 UV-Fs and 2 benzotriazoles in water samples was performed using an automatized on-line solid phase extraction coupled to liquid chromatography tandem mass spectrometry (SPE-HPLC-MS/MS) method. The analysis of the target compounds in the suspended solids and in the sediments was performed by HPLC-MS/MS. The analysis of the water samples showed the ubiquitous presence of UV-Fs. Benzotriazole (BZT; partition coefficient octanol-water Log Kow=1.23) and methylbenzotriazole (MeBZT; Log Kow=1.89) had the highest levels in both river water and wastewater. Removal rates in the selected WWTPs were highly variable (4-100%). Concentrations of lipophilic UV-Fs (Log Kow 4.95-7.53) in suspended particulate matter from wastewaters were high (up to 1,031,868.2ngg-1dry weight (dw)), whereas in sediment the concentrations were always below 300ng g-1 dw. The risk assessment expressed in terms of hazard quotients (HQs) revealed that most UV-Fs were not likely to produce adverse ecotoxicological effects against the living organisms assayed in river waters and influent wastewaters at the concentrations observed. However, HQs above 1 were obtained for BZT and MeBZT in effluent wastewaters discharged to the river.
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Affiliation(s)
- Daniel Molins-Delgado
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council of Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - João Távora
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council of Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - M Silvia Díaz-Cruz
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council of Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain.
| | - Damià Barceló
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council of Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; Catalan Institute for Water Research (ICRA), Parc Científic i Tecnològic de la Universitat de Girona. C/ Emili Grahit, 101 Edifici H2O, 17003 Girona, Spain
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68
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Salvadori B, Cagnini A, Galeotti M, Porcinai S, Goidanich S, Vicenzo A, Celi C, Frediani P, Rosi L, Frediani M, Giuntoli G, Brambilla L, Beltrami R, Trasatti S. Traditional and innovative protective coatings for outdoor bronze: Application and performance comparison. J Appl Polym Sci 2017. [DOI: 10.1002/app.46011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Barbara Salvadori
- Institute for the Conservation and Valorization of Cultural Heritage, National Research Council; Via Madonna del Piano 10, Sesto Fiorentino I-50019 Italy
| | - Andrea Cagnini
- Opificio delle Pietre Dure; Via degli Alfani, 78, Florence I-50121 Italy
| | - Monica Galeotti
- Institute for the Conservation and Valorization of Cultural Heritage, National Research Council; Via Madonna del Piano 10, Sesto Fiorentino I-50019 Italy
- Opificio delle Pietre Dure; Via degli Alfani, 78, Florence I-50121 Italy
| | - Simone Porcinai
- Opificio delle Pietre Dure; Via degli Alfani, 78, Florence I-50121 Italy
| | - Sara Goidanich
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”; Politecnico di Milano; Piazza Leonardo da Vinci 32, Milano I-20133 Italy
| | - Antonello Vicenzo
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”; Politecnico di Milano; Piazza Leonardo da Vinci 32, Milano I-20133 Italy
| | - Claudio Celi
- Opificio delle Pietre Dure; Via degli Alfani, 78, Florence I-50121 Italy
| | - Piero Frediani
- Department of Chemistry “Ugo Schiff”; University of Florence; via della Lastruccia 3-13, Sesto Fiorentino (FI) I-50019 Italy
| | - Luca Rosi
- Department of Chemistry “Ugo Schiff”; University of Florence; via della Lastruccia 3-13, Sesto Fiorentino (FI) I-50019 Italy
| | - Marco Frediani
- Department of Chemistry “Ugo Schiff”; University of Florence; via della Lastruccia 3-13, Sesto Fiorentino (FI) I-50019 Italy
| | - Giulia Giuntoli
- Department of Chemistry “Ugo Schiff”; University of Florence; via della Lastruccia 3-13, Sesto Fiorentino (FI) I-50019 Italy
| | - Laura Brambilla
- Haute-Ecole Arc Conservation-Restauration, Espace de l'Europe 11; Neuchâtel 2000 Switzerland
| | - Ruben Beltrami
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”; Politecnico di Milano; Piazza Leonardo da Vinci 32, Milano I-20133 Italy
| | - Stefano Trasatti
- Department of Chemistry; University of Milan; Via Camillo Golgi 19, Milan I-20133 Italy
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69
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Lu Z, Smyth SA, Peart TE, De Silva AO. Occurrence and fate of substituted diphenylamine antioxidants and benzotriazole UV stabilizers in various Canadian wastewater treatment processes. WATER RESEARCH 2017; 124:158-166. [PMID: 28756218 DOI: 10.1016/j.watres.2017.07.055] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 07/17/2017] [Accepted: 07/21/2017] [Indexed: 05/14/2023]
Abstract
Substituted diphenylamine antioxidants (SDPAs) and benzotriazole UV stabilizers (BZT-UVs) are additives used in industrial and consumer products to prevent degradation or color change of materials, but their environmental fate and disposition are not well characterized. In this study, SDPAs and BZT-UVs were analyzed in 68 liquid and 39 solid samples collected from 9 wastewater treatment plants (WWTPs) in Canada to investigate the occurrence and fate of these contaminants. The median concentrations of ΣSDPAs and ΣBZT-UVs was 483 and 76.2 ng L-1 in influent, 28.4 and 4.84 ng L-1 in effluent, and 2750 and 457 ng g-1 in biosolids (dry weight), respectively. Dinonyl-diphenylamine (C9C9) was the predominant congener of SDPAs in all matrices (>40%). For target BZT-UVs, the major components were 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol (UV234) and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV328). SDPAs and BZT-UVs were effectively removed (>90%) from the liquid stream in most WWTPs mainly through sludge sorption and separation, but biotransformation, UV treatment and filtration may also contribute to removal of some contaminants in advanced treatment plants. In contrast, the removal efficiency of target contaminants using chemically assisted primary treatment was low, likely due to the short hydraulic retention time of this site. Our results suggest that wastewater effluent is a vector of SDPAs and BZT-UVs to the aquatic environment. The results also highlight the high concentrations of SDPAs and BZT-UVs associated with the solid stream in WWTPs, which could affect the beneficial use of biosolids (e.g., compost or land applications).
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Affiliation(s)
- Zhe Lu
- Science & Technology Branch, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, Ontario, L7S 1A1, Canada.
| | - Shirley Anne Smyth
- Science & Technology Branch, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, Ontario, L7S 1A1, Canada.
| | - Thomas E Peart
- Science & Technology Branch, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, Ontario, L7S 1A1, Canada.
| | - Amila O De Silva
- Science & Technology Branch, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, Ontario, L7S 1A1, Canada.
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70
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Liang X, Li J, Martyniuk CJ, Wang J, Mao Y, Lu H, Zha J. Benzotriazole ultraviolet stabilizers alter the expression of the thyroid hormone pathway in zebrafish (Danio rerio) embryos. CHEMOSPHERE 2017; 182:22-30. [PMID: 28486152 DOI: 10.1016/j.chemosphere.2017.05.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 04/30/2017] [Accepted: 05/02/2017] [Indexed: 05/14/2023]
Abstract
Benzotriazole ultraviolet stabilizers (BUVSs) are widely used in industrial products as well as personal-hygiene products to protect the material or skin from harmful UV-radiation. Due to their persistence and bioaccumulation, BUVSs have been ubiquitously detected in aquatic environments. Although the toxicological effects of BUVSs in aquatic organisms have been previously examined, the effects of BUVSs on the thyroid system have not been adequately addressed. In this study, we assessed putative thyroid disrupting effects of BUVSs (UV-234, UV-326, UV-329 and UV-P) in zebrafish embryos at 1, 10 and 100 μg/L for 96 h. The heart rate was assessed in zebrafish and was observed to be decreased by 6.9%-21.4% in exposure of tested BUVSs. We also observed that the transcript levels of HPT axis-related genes were affected by the 4 BUVSs tested in different ways. Specifically, mRNA levels of thyroid hormone receptors (thraa and thrb) in zebrafish embryos were differentially expressed and the direction of change in these transcripts was isoform and BUVSs dependent. Pathway analysis of the targeted genes measured indicated that cellular processes putatively affected by BUVSs included response to organic substance, regulation of transcription from RNA polymerase II promoter, intracellular receptor signaling pathway, and hypothyroidism. Upon expansion of the network, novel genes involved in this predicted gene network may provide insight into the mechanisms of thyroid disrupting mechanisms of BUVSs. Taken together, our results indicate that BUVSs can potentially impact the thyroid system, and that this is dependent upon the type or structure of BUVSs.
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Affiliation(s)
- Xuefang Liang
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China.
| | - Jiajia Li
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Christopher J Martyniuk
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, College of Veterinary Medicine, UF Genetics Institute, University of Florida, Gainesville, FL, 32611, USA
| | - Juan Wang
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Yufeng Mao
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Huan Lu
- School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China
| | - Jinmiao Zha
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
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71
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S R, A B, M P, T L. Occurrence and toxicity of musks and UV filters in the marine environment. Food Chem Toxicol 2017; 104:57-68. [DOI: 10.1016/j.fct.2016.11.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 11/10/2016] [Accepted: 11/12/2016] [Indexed: 12/11/2022]
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72
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Lv X, Pan L, Wang J, Lu L, Yan W, Zhu Y, Xu Y, Guo M, Zhuang S. Effects of triazole fungicides on androgenic disruption and CYP3A4 enzyme activity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 222:504-512. [PMID: 28012672 DOI: 10.1016/j.envpol.2016.11.051] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/23/2016] [Accepted: 11/16/2016] [Indexed: 05/24/2023]
Abstract
Triazole fungicides are widely used as broad-spectrum fungicides, non-steroidal antiestrogens and for various industrial applications. Their residues have been frequently detected in multiple environmental and human matrices. The increasingly reported toxicity incidents have led triazole fungicides as emerging contaminants of environmental and public health concern. However, whether triazole fungicides behave as endocrine disruptors by directly mimicking environmental androgens/antiandrogens or exerting potential androgenic disruption indirectly through the inhibition of cytochrome P450 (CYP450) enzyme activity is yet an unresolved question. We herein evaluated five commonly used triazole fungicides including bitertanol, hexaconazole, penconazole, tebuconazole and uniconazole for the androgenic and anti-androgenic activity using two-hybrid recombinant human androgen receptor (AR) yeast bioassay and comparatively evaluated their effects on enzymatic activity of CYP3A4 by P450-Glo™ CYP3A4 bioassay. All five fungicides showed moderate anti-androgenic activity toward human AR with the IC50 ranging from 9.34 μM to 79.85 μM. The anti-androgenic activity remained no significant change after the metabolism mediated by human liver microsomes. These fungicides significantly inhibited the activity of CYP3A4 at the environmental relevant concentrations and the potency ranks as tebuconazole > uniconazole > hexaconazole > penconazole > bitertanol with the corresponding IC50 of 0.81 μM, 0.93 μM, 1.27 μM, 2.22 μM, and 2.74 μM, respectively. We found that their anti-androgenic activity and the inhibition potency toward CYP3A4 inhibition was significantly correlated (R2 between 0.83 and 0.97, p < 0.001). Our results indicated that the risk assessment of triazole pesticides and structurally similar chemicals should fully consider potential androgenic disrupting effects and the influences on the activity of CYP450s.
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Affiliation(s)
- Xuan Lv
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan 316022, China
| | - Liumeng Pan
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jiaying Wang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Liping Lu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan 316022, China
| | - Weilin Yan
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, China
| | - Yanye Zhu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yiwen Xu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ming Guo
- School of Science, Zhejiang Agriculture & Forestry University, Lin'an 311300, China
| | - Shulin Zhuang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan 316022, China.
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Peng X, Xiong S, Ou W, Wang Z, Tan J, Jin J, Tang C, Liu J, Fan Y. Persistence, temporal and spatial profiles of ultraviolet absorbents and phenolic personal care products in riverine and estuarine sediment of the Pearl River catchment, China. JOURNAL OF HAZARDOUS MATERIALS 2017; 323:139-146. [PMID: 27209124 DOI: 10.1016/j.jhazmat.2016.05.020] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/28/2016] [Accepted: 05/06/2016] [Indexed: 05/25/2023]
Abstract
A variety of personal care products have been classified as emerging contaminants (ECs). Occurrence, fate, spatial and vertical profiles of 13 ultraviolet absorbents, triclocarban (TCC) and its dechlorinated products, triclosan (TCS), 2-phenylphenol and parabens were investigated in riverine and estuarine sediment of the Pearl River catchment, China. Bisphenol A (BPA), a widely applied plasticizer, was also investigated. The ECs were widely present in the bed sediment. TCC was the most abundant with a maximum concentration of 332ngg-1 dry weight. The other prominent ECs included BPA, TCS, octocrylene, and benzotriazole UV stabilizers UV326 and UV328. Treated wastewater effluent was the major source of the ECs in the riverine sediment. TCC, BPA, TCS, methyparaben, UV531, UV326, and UV328 were also detected throughout the estuarine sediment cores, indicating their persistence in the sediment. Temporal trends of the ECs in the sediment cores reflected a combined effect of industrial development, population growth, human life quality improvement, and waste treatment capacity in the Pearl River Delta over the last decades. TCC dechlorination products were frequently detected in the bed sediment with higher levels near treated effluent outlets but only occasionally observed in the sediment cores, suggesting insignificant in-situ TCC dechlorination in the sediment.
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Affiliation(s)
- Xianzhi Peng
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; Provincial Key Laboratory of Environmental Utilization and Protection of Guangdong, Guangzhou, 510640, China.
| | - Songsong Xiong
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Provincial Key Laboratory of Environmental Utilization and Protection of Guangdong, Guangzhou, 510640, China
| | - Weihui Ou
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhifang Wang
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianhua Tan
- Guangzhou Institute of Quality Monitoring and Inspection, Guangzhou, 510110, China
| | - Jiabin Jin
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Provincial Key Laboratory of Environmental Utilization and Protection of Guangdong, Guangzhou, 510640, China
| | - Caiming Tang
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun Liu
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Provincial Key Laboratory of Environmental Utilization and Protection of Guangdong, Guangzhou, 510640, China
| | - Yujuan Fan
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Provincial Key Laboratory of Environmental Utilization and Protection of Guangdong, Guangzhou, 510640, China
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74
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Zhuang S, Lv X, Pan L, Lu L, Ge Z, Wang J, Wang J, Liu J, Liu W, Zhang C. Benzotriazole UV 328 and UV-P showed distinct antiandrogenic activity upon human CYP3A4-mediated biotransformation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:616-624. [PMID: 27743791 DOI: 10.1016/j.envpol.2016.10.011] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 09/30/2016] [Accepted: 10/04/2016] [Indexed: 06/06/2023]
Abstract
Benzotriazole ultraviolet stabilizers (BUVSs) are prominent chemicals widely used in industrial and consumer products to protect against ultraviolet radiation. They are becoming contaminants of emerging concern since their residues are frequently detected in multiple environmental matrices and their toxicological implications are increasingly reported. We herein investigated the antiandrogenic activities of eight BUVSs prior to and after human CYP3A4-mediated metabolic activation/deactivation by the two-hybrid recombinant human androgen receptor yeast bioassay and the in vitro metabolism assay. More potent antiandrogenic activity was observed for the metabolized UV-328 in comparison with UV-328 at 0.25 μM ((40.73 ± 4.90)% vs. (17.12 ± 3.00)%), showing a significant metabolic activation. In contrast, the metabolized UV-P at 0.25 μM resulted in a decreased antiandrogenic activity rate from (16.08 ± 0.95)% to (6.91 ± 2.64)%, indicating a metabolic deactivation. Three mono-hydroxylated (OH) and three di-OH metabolites of UV-328 were identified by ultra-performance liquid chromatography quadrupole time of flight mass spectrometry (UPLC-Q-TOF-MS/MS), which were not reported previously. We further surmised that the hydroxylation of UV-328 occurs mainly at the alicyclic hydrocarbon atoms based on the in silico prediction of the lowest activation energies of hydrogen abstraction from C-H bond. Our results for the first time relate antiandrogenic activity to human CYP3A4 enzyme-mediated hydroxylated metabolites of BUVSs. The biotransformation through hydroxylation should be fully considered during the health risk assessment of structurally similar analogs of BUVSs and other emerging contaminants.
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Affiliation(s)
- Shulin Zhuang
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan 316022, China.
| | - Xuan Lv
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, China
| | - Liumeng Pan
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Liping Lu
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhiwei Ge
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jiaying Wang
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jingpeng Wang
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jinsong Liu
- Zhejiang Province Environmental Monitoring Center, Hangzhou 310005, China
| | - Weiping Liu
- Institute of Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chunlong Zhang
- Department of Biological and Environmental Sciences, University of Houston-Clear Lake, 2700 Bay Area Blvd., Houston, TX 77058, USA.
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75
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Lu Z, Peart TE, Cook CJ, De Silva AO. Simultaneous determination of substituted diphenylamine antioxidants and benzotriazole ultra violet stabilizers in blood plasma and fish homogenates by ultra high performance liquid chromatography-electrospray tandem mass spectrometry. J Chromatogr A 2016; 1461:51-8. [PMID: 27425756 DOI: 10.1016/j.chroma.2016.07.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 07/06/2016] [Accepted: 07/08/2016] [Indexed: 01/13/2023]
Abstract
Analytical methods were developed for the determination of eight substituted diphenylamines (SDPAs) and six benzotriazole UV stabilizers (BZT-UVs) in blood plasma and fish homogenate matrices. Liquid-liquid extraction by methyl tert-butyl ether and denaturation by KOH following silica gel packed column clean-up was employed for blood plasma preparation. For the fish homogenate samples, ultrasonic assisted solvent extraction combined with automated gel permeation chromatography and silica gel packed column clean-up was used. The target compounds were determined by optimized ultra performance liquid chromatography-tandem mass spectrometry in positive electrospray ionization mode. The method limits of quantification (MLOQs) of the 14 analytes ranged from 0.002 to 1.5ngg(-1) and 0.001 to 2.3ngg(-1) (wet weight, w.w.) for blood plasma and fish homogenate, respectively. The total recoveries of the target compounds varied from 61% to 100% (mean 77±9%). Eleven targets including monobutyl- (C4), dibutyl- (C4C4), monooctyl- (C8), monobutyl monooctyl- (C4C8), dioctyl-(C8C8), monononyl- (C9), dinonly-(C9C9) and 4,4'-bis(α,α-dimethylbenzyl)-(diAMS) DPAs, as well as 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol (UV234), 2,4-di-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl) phenol (UV327) and 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV328) were identified in the environmental biota samples, with concentrations in the range of <MLOQ-934pgg(-1), <MLOQ-4.2×10(3)pgg(-1) and <MLOQ-3.9×10(3)pgg(-1)w.w. for bottle nose dolphin (Tursiops truncatus) plasma, northern pike (Esox lucius) plasma and white sucker (Catostomus commersonii) homogenate, respectively. This is the first report of an analytical method development for SDPAs in biotic matrices and BZT-UVs in blood plasma samples.
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Affiliation(s)
- Zhe Lu
- Aquatic Contaminants Research Division, Water Science Technology Directorate, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, Ontario, L7S 1A1, Canada
| | - Thomas E Peart
- Aquatic Contaminants Research Division, Water Science Technology Directorate, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, Ontario, L7S 1A1, Canada
| | - Cyril J Cook
- Aquatic Contaminants Research Division, Water Science Technology Directorate, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, Ontario, L7S 1A1, Canada
| | - Amila O De Silva
- Aquatic Contaminants Research Division, Water Science Technology Directorate, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, Ontario, L7S 1A1, Canada.
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76
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Wick A, Jacobs B, Kunkel U, Heininger P, Ternes TA. Benzotriazole UV stabilizers in sediments, suspended particulate matter and fish of German rivers: New insights into occurrence, time trends and persistency. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 212:401-412. [PMID: 26874322 DOI: 10.1016/j.envpol.2016.01.024] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 01/08/2016] [Accepted: 01/09/2016] [Indexed: 05/14/2023]
Abstract
Benzotriazole UV stabilizers (BUVSs) are widely applied in plastics to prevent discoloration and to enhance product stability. This study describes for the first time the occurrence of nine different lipophilic BUVSs (UV-326, UV-320, UV-329, UV-350, UV-328, UV-327, UV-928, UV-234 and UV-360) in sediment, suspended particulate matter (SPM) and bream liver samples of German rivers. All investigated BUVSs were detected in sediments and SPM at concentrations in the low ng/g dry weight (dw) range. The so far rarely analyzed compound UV-360 as well as UV-326 were the predominant BUVSs in sediments and SPM from the river Rhine reaching maximum concentrations of 62 and 44 ng/g dw, respectively. Five BUVSs were also confirmed to bioaccumulate in bream liver, but neither UV-360 nor UV-326 was detected above the limit of quantification (LOQ). In contrast, highest concentrations in bream liver were determined for UV-327 (65 ng/g dw) and UV-328 (40 ng/g dw). A retrospective time trend analysis of BUVSs in SPM from two sites (river Rhine, 2005 to 2013; river Saar, 2006 to 2013) revealed increasing contamination levels of UV-329 and decreasing levels of UV-320 and UV-350. At one site (river Rhine) time trends of BUVS concentrations were also investigated in bream liver (1995-2013) and supported a considerably reduced exposure to UV-350. A first assessment of the environmental fate of BUVSs by sediment-water batch systems revealed a rapid partitioning into the sediment and no considerable degradation within 100 d.
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Affiliation(s)
- Arne Wick
- Federal Institute of Hydrology, Koblenz, 56068, Germany
| | - Björn Jacobs
- Federal Institute of Hydrology, Koblenz, 56068, Germany
| | - Uwe Kunkel
- Federal Institute of Hydrology, Koblenz, 56068, Germany
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77
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Brun NR, Wehrli B, Fent K. Ecotoxicological assessment of solar cell leachates: Copper indium gallium selenide (CIGS) cells show higher activity than organic photovoltaic (OPV) cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 543:703-714. [PMID: 26615488 DOI: 10.1016/j.scitotenv.2015.11.074] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 11/14/2015] [Accepted: 11/14/2015] [Indexed: 06/05/2023]
Abstract
Despite the increasing use of photovoltaics their potential environmental risks are poorly understood. Here, we compared ecotoxicological effects of two thin-film photovoltaics: established copper indium gallium selenide (CIGS) and organic photovoltaic (OPV) cells. Leachates were produced by exposing photovoltaics to UV light, physical damage, and exposure to environmentally relevant model waters, representing mesotrophic lake water, acidic rain, and seawater. CIGS cell leachates contained 583 μg L(-1) molybdenum at lake water, whereas at acidic rain and seawater conditions, iron, copper, zinc, molybdenum, cadmium, silver, and tin were present up to 7219 μg L(-1). From OPV, copper (14 μg L(-1)), zinc (87 μg L(-1)) and silver (78 μg L(-1)) leached. Zebrafish embryos were exposed until 120 h post-fertilization to these extracts. CIGS leachates produced under acidic rain, as well as CIGS and OPV leachates produced under seawater conditions resulted in a marked hatching delay and increase in heart edema. Depending on model water and solar cell, transcriptional alterations occurred in genes involved in oxidative stress (cat), hormonal activity (vtg1, ar), metallothionein (mt2), ER stress (bip, chop), and apoptosis (casp9). The effects were dependent on the concentrations of cationic metals in leachates. Addition of ethylenediaminetetraacetic acid protected zebrafish embryos from morphological and molecular effects. Our study suggests that metals leaching from damaged CIGS cells, may pose a potential environmental risk.
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Affiliation(s)
- Nadja Rebecca Brun
- University of Applied Sciences and Arts Northwestern Switzerland, School of Life Sciences, Gründenstrasse 40, CH-4132 Muttenz, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Universitätsstrasse 16, CH-8092 Zürich, Switzerland
| | - Bernhard Wehrli
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Universitätsstrasse 16, CH-8092 Zürich, Switzerland
| | - Karl Fent
- University of Applied Sciences and Arts Northwestern Switzerland, School of Life Sciences, Gründenstrasse 40, CH-4132 Muttenz, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Universitätsstrasse 16, CH-8092 Zürich, Switzerland.
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78
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Zhang NS, Liu YS, Van den Brink PJ, Price OR, Ying GG. Ecological risks of home and personal care products in the riverine environment of a rural region in South China without domestic wastewater treatment facilities. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 122:417-25. [PMID: 26379200 DOI: 10.1016/j.ecoenv.2015.09.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 08/31/2015] [Accepted: 09/01/2015] [Indexed: 05/02/2023]
Abstract
Home and personal care products (HPCPs) including biocides, benzotriazoles (BTs) and ultraviolet (UV) filters are widely used in our daily life. After use, they are discharged with domestic wastewater into the receiving environment. This study investigated the occurrence of 29 representative HPCPs, including biocides, BTs and UV filters, in the riverine environment of a rural region of South China where no wastewater treatment plants were present, and assessed their potential ecological risks to aquatic organisms. The results showed the detection of 11 biocides and 4 BTs in surface water, and 9 biocides, 3 BTs and 4 UV filters in sediment. In surface water, methylparaben (MeP), triclocarban (TCC), and triclosan (TCS) were detected at all sites with median concentrations of 9.23 ng/L, 2.64 ng/L and 5.39 ng/L, respectively. However, the highest median concentrations were found for clotrimazole (CLOT), 5-methyl-1H-benzotriazole (MBT) and carbendazim (CARB) at 55.6 ng/L, 33.7 ng/L and 13.8 ng/L, respectively. In sediment, TCC, TCS, and UV-326 were detected with their maximum concentrations up to 353 ng/g, 155 ng/g, and 133 ng/g, respectively. The concentrations for those detected HPCPs in surface water and sediment were generally lower in the upper reach (rural area) of Sha River than in the lower reach of Sha River with close proximity to Dongjiang River (Pt-test<0.05), indicating other input sources of HPCPs in the lower reach. Biocides showed significantly higher levels in surface water in the wet season than in the dry and intermediate seasons. Preliminary risk assessment demonstrated that the majority of HPCPs monitored represented low risk in surface waters. There are potentially greater risks to aquatic organisms from the use of TCS and TCC in the wet season than in dry and intermediate seasons in surface waters. This preliminary assessment also indicates potential concerns associated with TCC, TCS, DEET, CARB, and CLOT in sediments, although additional data should be generated to assess this fully. Thus future research is needed to investigate ecological effects of these HPCPs on benthic organisms in sediment of rural rivers receiving untreated wastewater discharge.
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Affiliation(s)
- Nai-Sheng Zhang
- Department of Aquatic Ecology and Water Quality Management, Wageningen University, P.O. Box 47, 6700 AA Wageningen, The Netherlands; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - You-sheng Liu
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Paul J Van den Brink
- Department of Aquatic Ecology and Water Quality Management, Wageningen University, P.O. Box 47, 6700 AA Wageningen, The Netherlands; Alterra, Wageningen University and Research Centre, P.O. Box 47, 6700 AA Wageningen, The Netherlands
| | - Oliver R Price
- Safety and Environmental Assurance Centre, Unilever, Colworth Science Park, Sharnbrook, Bedfordshire MK44 1LQ, UK
| | - Guang-Guo Ying
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
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79
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Viganò L, De Flora S, Gobbi M, Guiso G, Izzotti A, Mandich A, Mascolo G, Roscioli C. Exposing native cyprinid (Barbus plebejus) juveniles to river sediments leads to gonadal alterations, genotoxic effects and thyroid disruption. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 169:223-239. [PMID: 26580918 DOI: 10.1016/j.aquatox.2015.10.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 10/26/2015] [Accepted: 10/29/2015] [Indexed: 06/05/2023]
Abstract
Juveniles (50 days post hatch) of a native cyprinid fish (Barbus plebejus) were exposed for 7 months to sediments from the River Lambro, a polluted tributary impairing the quality of the River Po for tens of kilometers from their confluence. Sediments were collected upstream of the city of Milan and downstream at the closure of the drainage basin of the River Lambro. Chemical analyses revealed the presence of a complex mixture of bioavailable endocrine-active chemicals, with higher exposure levels in the downstream section of the tributary. Mainly characterized by brominated flame retardants, alkylphenols, polychlorinated biphenyls, and minor co-occurring personal care products and natural hormones, the sediment contamination induced reproductive disorders, as well as other forms of endocrine disruption and toxicity. In particular, exposed male barbel exhibited higher biliary PAH-like metabolites, overexpression of the cyp1a gene, vitellogenin production in all specimens, the presence of oocytes (up to 22% intersex), degenerative alterations in their testis, liver fat vacuolization, a marked depression of total thyroxine (T4) and triiodothyronine (T3) plasma levels, and genotoxic damages determined as hepatic DNA adducts. These results clearly demonstrate that Lambro sediments alone are responsible for recognizable changes in the structure and function of the reproductive and, in general, the endocrine system of a native fish species. In the real environment, exposure to waterborne and food-web sources of chemicals are responsible for additional toxic loads, and the present findings thus provide evidence for a causal role of this tributary in the severe decline observed in barbel in recent decades and raise concern that the fish community of the River Po is exposed to endocrine-mediated health effects along tens of kilometres of its course.
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Affiliation(s)
- Luigi Viganò
- Water Research Institute, National Research Council, Via del Mulino 19, 20861 Brugherio, MB, Italy.
| | - Silvio De Flora
- Department of Health Sciences, University of Genoa, Via A. Pastore 1, 16132 Genoa, Italy
| | - Marco Gobbi
- Laboratory of Pharmacodynamics and Pharmacokinetics, IRCCS, Istituto di Ricerche Farmacologiche "Mario Negri", Via G. La Masa 19, 20156 Milan, Italy
| | - Giovanna Guiso
- Laboratory of Pharmacodynamics and Pharmacokinetics, IRCCS, Istituto di Ricerche Farmacologiche "Mario Negri", Via G. La Masa 19, 20156 Milan, Italy
| | - Alberto Izzotti
- Department of Health Sciences, University of Genoa, Via A. Pastore 1, 16132 Genoa, Italy
| | - Alberta Mandich
- Department of Earth, Environment, and Life Sciences, University of Genoa, Viale Benedetto XV 5, 16132 Genoa, Italy; Consorzio Interuniversitario Biosistemi e Biostrutture (INBB), Rome, Italy
| | - Giuseppe Mascolo
- Water Research Institute, National Research Council, Via De Blasio 5, 70132 Bari, Italy
| | - Claudio Roscioli
- Water Research Institute, National Research Council, Via del Mulino 19, 20861 Brugherio, MB, Italy
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Sánchez-Quiles D, Tovar-Sánchez A. Are sunscreens a new environmental risk associated with coastal tourism? ENVIRONMENT INTERNATIONAL 2015; 83:158-70. [PMID: 26142925 DOI: 10.1016/j.envint.2015.06.007] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 06/08/2015] [Accepted: 06/10/2015] [Indexed: 05/26/2023]
Abstract
The world coastal-zone population and coastal tourism are expected to grow during this century. Associated with that, there will be an increase in the use of sunscreens and cosmetics with UV-filters in their formulation, which will make coastal regions worldwide susceptible to the impact of these cosmetics. Recent investigations indicate that organic and inorganic UV-filters, as well as many other components that are constituents of the sunscreens, reach the marine environment--directly as a consequence of water recreational activities and/or indirectly from wastewater treatment plants (WWTP) effluents. Toxicity of organic and inorganic UV filters has been demonstrated in aquatic organism. UV-filters inhibit growth in marine phytoplankton and tend to bioaccumulate in the food webs. These findings together with coastal tourism data records highlight the potential risk that the increasing use of these cosmetics would have in coastal marine areas. Nevertheless, future investigations into distribution, residence time, aging, partitioning and speciation of their main components and by-products in the water column, persistence, accumulation and toxicity in the trophic chain, are needed to understand the magnitude and real impact of these emerging pollutants in the marine system.
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Affiliation(s)
- David Sánchez-Quiles
- Department of Global Change Research, Mediterranean Institute for Advanced Studies, IMEDEA (CSIC-UIB), Miguel Marqués 21, 07190 Esporles, Balearic Island, Spain.
| | - Antonio Tovar-Sánchez
- Department of Global Change Research, Mediterranean Institute for Advanced Studies, IMEDEA (CSIC-UIB), Miguel Marqués 21, 07190 Esporles, Balearic Island, Spain; Department of Ecology and Coastal Management, Andalusian Institute for Marine Science, ICMAN (CSIC), Campus Universitario Río San Pedro, 11510 Puerto Real, Cádiz, Spain
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81
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Lee S, Kim S, Park J, Kim HJ, Lee JJ, Choi G, Choi S, Kim S, Kim SY, Choi K, Kim S, Moon HB. Synthetic musk compounds and benzotriazole ultraviolet stabilizers in breast milk: Occurrence, time-course variation and infant health risk. ENVIRONMENTAL RESEARCH 2015; 140:466-473. [PMID: 25988989 DOI: 10.1016/j.envres.2015.04.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 04/21/2015] [Accepted: 04/28/2015] [Indexed: 06/04/2023]
Abstract
Synthetic musk compounds (SMCs) and benzotriazole ultraviolet stabilizers (BUVSs) are used as additives in many consumer products. Limited data are available on the accumulation of SMCs in human fluids, and no data are available on BUVSs. In this study, 208 human breast milk samples were collected from 87 participants during the lactation period at <7, 15, 30, and 90 days after delivery in Korea. The total concentrations of SMCs and BUVSs ranged from <LOQ to 1593 (median: 286) ng/g lipid weight and from <LOQ to 2172 (median: 64.7) ng/g lipid weight, respectively. The residue levels of HHCB and AHTN in our samples were the highest, compared to those reported in the US, Europe, and China. The predominant compounds were HHCB and AHTN for SMCs and UV-328 for BUVSs, consistent with consumption patterns of these contaminants. Over the lactation period, no significant changes were found in concentrations of SMCs and BUVSs for both parity groups. Maternal age, body mass index, and parity were not associated with the concentrations of SMCs and BUVSs, while gestational age and delivery mode were associated with these contaminants. The estimated daily intakes of HHCB and AHTN were lower than the provisional tolerable daily intake values, suggesting a limited health risk to Korean infants. This study is the first to comprehensively investigate the current levels, accumulation features, contributing factors of BUVSs associated with breast milk consumption in Korea.
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Affiliation(s)
- Sunggyu Lee
- Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan, Republic of Korea
| | - Sunmi Kim
- School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Jeongim Park
- College of Natural Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Hai-Joong Kim
- College of Medicine, Korea University, Ansan, Republic of Korea
| | - Jeong Jae Lee
- College of Medicine, Soonchunhyang University, Seoul, Republic of Korea
| | - Gyuyeon Choi
- College of Medicine, Soonchunhyang University, Seoul, Republic of Korea
| | - Sooran Choi
- College of Medicine, Inha University, Incheon, Republic of Korea
| | - Sungjoo Kim
- College of Medicine, Hallym University, Seoul, Republic of Korea
| | - Su Young Kim
- School of Medicine, Jeju National University, Jeju, Republic of Korea
| | - Kyungho Choi
- School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Sungkyoon Kim
- School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Hyo-Bang Moon
- Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan, Republic of Korea.
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82
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Avagyan R, Luongo G, Thorsén G, Östman C. Benzothiazole, benzotriazole, and their derivates in clothing textiles--a potential source of environmental pollutants and human exposure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:5842-9. [PMID: 25342452 DOI: 10.1007/s11356-014-3691-0] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 10/02/2014] [Indexed: 05/08/2023]
Abstract
Textiles play an important role in our daily life, and textile production is one of the oldest industries. In the manufacturing chain from natural and/or synthetic fibers to the final clothing products, the use of many different chemicals is ubiquitous. A lot of research has focused on chemicals in textile wastewater, but the knowledge of the actual content of harmful chemicals in clothes sold on the retail market is limited. In this paper, we have focused on eight benzothiazole and benzotriazole derivatives, compounds rated as high production volume chemicals. Twenty-six clothing samples of various textile materials and colors manufactured in 14 different countries were analyzed in textile clothing using liquid chromatography tandem mass spectrometry. Among the investigated textile products, 11 clothes were for babies, toddlers, and children. Eight of the 11 compounds included in the investigation were detected in the textiles. Benzothiazole was present in 23 of 26 investigated garments in concentrations ranging from 0.45 to 51 μg/g textile. The garment with the highest concentration of benzothiazole contained a total amount of 8.3 mg of the chemical. The third highest concentration of benzothiazole (22 μg/g) was detected in a baby body made from "organic cotton" equipped with the "Nordic Ecolabel" ("Svanenmärkt"). It was also found that concentrations of benzothiazoles in general were much higher than those for benzotriazoles. This study implicates that clothing textiles can be a possible route for human exposure to harmful chemicals by skin contact, as well as being a potential source of environmental pollutants via laundering and release to household wastewater.
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Affiliation(s)
- Rozanna Avagyan
- Department of Analytical Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
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83
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Nagayoshi H, Kakimoto K, Takagi S, Konishi Y, Kajimura K, Matsuda T. Benzotriazole ultraviolet stabilizers show potent activities as human aryl hydrocarbon receptor ligands. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:578-87. [PMID: 25383696 DOI: 10.1021/es503926w] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Benzotriazole ultraviolet stabilizers (BUVSs) used in consumer products are raising concerns as new pollutants in the aquatic environment. We determined the agonistic activities of eight BUVSs and a chemically distinct UV absorber (4-methylbenzylidinecamphor) toward the human aryl hydrocarbon receptor (AhR) and thyroid hormone receptors alpha and beta. Although none of the BUVSs showed ligand activity against the thyroid hormone receptors, four of them (UV-P, UV-9, UV-326, and UV-090) showed significant AhR ligand activity. Their half-maximal effective concentrations (EC50) were 130 nM for UV-P, 460 nM for UV-9, and 5.1 μM for UV-090 (a value for UV-326 could not be determined). Of the numerous AhR ligands, it is well-known that those considered nontoxic are quickly metabolized by enzymes such as CYP1A1, which destroys their ability to function as ligands. Accordingly, we established a new yeast assay for simultaneous monitoring of both the strength of AhR ligand activity and ligand degradation by CYP1A1. We found the AhR ligand activities of the above four BUVSs to be stable in the presence of CYP1A1; therefore, they have the potential to accumulate and exert potent physiological effects in humans, analogous to polycyclic aromatic hydrocarbons and dioxins, which are known stable and toxic ligands.
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Affiliation(s)
- Haruna Nagayoshi
- Osaka Prefectural Institute of Public Health, 1-3-69 Nakamichi, Higashinari-ku, Osaka, 537-0025, Japan
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84
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Rochman CM, Kurobe T, Flores I, Teh SJ. Early warning signs of endocrine disruption in adult fish from the ingestion of polyethylene with and without sorbed chemical pollutants from the marine environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 493:656-61. [PMID: 24995635 DOI: 10.1016/j.scitotenv.2014.06.051] [Citation(s) in RCA: 389] [Impact Index Per Article: 38.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 06/13/2014] [Accepted: 06/13/2014] [Indexed: 05/04/2023]
Abstract
Plastic debris is associated with several chemical pollutants known to disrupt the functioning of the endocrine system. To determine if the exposure to plastic debris and associated chemicals promotes endocrine-disrupting effects in fish, we conducted a chronic two-month dietary exposure using Japanese medaka (Oryzias latipes) and environmentally relevant concentrations of microplastic (<1mm) and associated chemicals. We exposed fish to three treatments: a no-plastic (i.e. negative control), virgin-plastic (i.e. virgin polyethylene pre-production pellets) and marine-plastic treatment (i.e. polyethylene pellets deployed in San Diego Bay, CA for 3 months). Altered gene expression was observed in male fish exposed to the marine-plastic treatment, whereas altered gene expression was observed in female fish exposed to both the marine- and virgin-plastic treatment. Significant down-regulation of choriogenin (Chg H) gene expression was observed in males and significant down-regulation of vitellogenin (Vtg I), Chg H and the estrogen receptor (ERα) gene expression was observed in females. In addition, histological observation revealed abnormal proliferation of germ cells in one male fish from the marine-plastic treatment. Overall, our study suggests that the ingestion of plastic debris at environmentally relevant concentrations may alter endocrine system function in adult fish and warrants further research.
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Affiliation(s)
- Chelsea M Rochman
- Aquatic Health Program, School of Veterinary Medicine, University of California, Davis, Davis, CA 95616, USA.
| | - Tomofumi Kurobe
- Aquatic Health Program, School of Veterinary Medicine, University of California, Davis, Davis, CA 95616, USA
| | - Ida Flores
- Aquatic Health Program, School of Veterinary Medicine, University of California, Davis, Davis, CA 95616, USA
| | - Swee J Teh
- Aquatic Health Program, School of Veterinary Medicine, University of California, Davis, Davis, CA 95616, USA
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85
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Liang Y, Xiang B, Liu C, Zhou X, Wang D, Song S, Bai G, An Q, Huang Q, Chen S, Wei X. Ultraviolet light absorber with low surface energy: synthesis and characterization. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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