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Liu H, Hu J, Tan Y, Zheng Z, Liu M, Lohmann R, Vojta S, Katz S, Liu Y, Li Z, Fang Z, Cai M, Zhao W. Identification of key anthropogenic and land use factors and ecological risk assessment of dissolved polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs) in an urbanized estuary in China. MARINE POLLUTION BULLETIN 2024; 207:116876. [PMID: 39173474 DOI: 10.1016/j.marpolbul.2024.116876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2024] [Revised: 08/16/2024] [Accepted: 08/17/2024] [Indexed: 08/24/2024]
Abstract
This study investigated dissolved PAHs and OCPs in Quanzhou Bay estuaries, assessed their ecological risk, and examined anthropogenic impacts on contaminant distribution. Results showed that dissolved ∑24PAH concentrations ranged from 117 to 709 ng/L (mean: 358 ng/L), with dominance of 2-ring PAHs (Naphthalene, 1-Methylnaphthalene, and 2-Methylnaphthalene). Dissolved DDT levels ranged from 0.06 to 0.49 ng/L (mean: 0.28 ng/L), while HCBz concentrations varied from 0.02 to 0.44 ng/L (mean: 0.20 ng/L). PAHs were higher in the north due to urbanization and transport, while OCPs showed higher levels in the south due to historical agricultural use. Rural areas, water bodies, and wetlands significantly influenced the behavior of PAHs according to Spearman correlation and lasso regression analyses. Quanzhou Bay was categorized as a low to medium risk area based on dispersion simulation and ecological risk assessment, highlighting implications for future sustainable development and policy planning. CAPSULE: The coupled relationship between human activities and the distribution of dissolved PAHs and OCPs in urbanized estuaries was explored using statistical methods and GIS technology, providing valuable insights into environmental processes and pollutant control policies.
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Affiliation(s)
- Huijun Liu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Jiajie Hu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Yan Tan
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Zhong Zheng
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Mengyang Liu
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon 999077, Hong Kong
| | - Rainer Lohmann
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882, USA
| | - Simon Vojta
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882, USA
| | - Samuel Katz
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882, USA
| | - Yong Liu
- Zhejiang Institute of Hydraulics & Estuary (Zhejiang Institute of Marine Planning and Design), Hangzhou 310020, PR China
| | - Zhiheng Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Zhiguo Fang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Minggang Cai
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, PR China.
| | - Wenlu Zhao
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, PR China.
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Gu Y, Li C, Jiang Q, Hua R, Wu X, Xue J. Efficient and practical in-jar silicone rubber based passive sampling for simultaneous monitoring of emerging fungicides in water and soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 937:173539. [PMID: 38806130 DOI: 10.1016/j.scitotenv.2024.173539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 05/30/2024]
Abstract
The occurrence and ecological impacts of emerging fungicides in the environment has gained increasing attention. This study applied an in-jar passive sampling device based on silicone rubber (SR) film to measuring the freely dissolved concentration (Cfree) of 6 current-use fungicides as a critical index of bioavailability in water and soils. The kinetics parameters including SR-water, soil-water, and organic carbon-water partition coefficients and sampling rates of the target fungicides were first attained and characterized well with their physicochemical properties. The in situ and ex situ field deployment in Hefei City provided the assessment of contaminated levels for these fungicides in rivers and soils. The Cfree of triadimefon and azoxystrobin was estimated at 0.54 ± 0.07-17.4 ± 2.5 ng L-1 in Nanfei River and Chao Lake, while triadimefon was only found in Dongpu Reservoir water with Cfree below 0.66 ± 0.04 ng L-1. The results exhibited that the equilibrium duration of 7 d was suitable for water application but a longer interval of 14 d was recommended for soil sampling. This work demonstrated the advantages of the proposed strategy in terms of fast monitoring within 2 weeks and high sensitivity down to detection limits in 0.5-5 ng L-1. The in-jar passive sampling device can be extrapolated to the evaluation for a wide coverage of organic pollutants in water and soils.
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Affiliation(s)
- Ying Gu
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Ciyun Li
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Qingqing Jiang
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Rimao Hua
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Xiangwei Wu
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China
| | - Jiaying Xue
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, PR China.
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Yonis S, Kahkashan S, Adelman D, Lohmann R. Transects of polycyclic aromatic hydrocarbons and organochlorine pesticides in an urban estuary using passive samplers. MARINE POLLUTION BULLETIN 2023; 197:115768. [PMID: 37956493 DOI: 10.1016/j.marpolbul.2023.115768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/15/2023]
Abstract
Hydrophobic organic contaminants (HOCs) are tracers of anthropogenic impacts, which can negatively affect water quality. The relative importance of new emissions versus the remobilization of HOCs from legacy reservoirs is not well constrained. Polyethylene passive samplers were deployed in vertical profiles at four sites to determine the concentrations and gradients of atmospheric and freely dissolved polycyclic aromatic hydrocarbons (PAHs) and freely dissolved organochlorinated pesticides (OCPs) in Narragansett Bay, an urban estuary. The concentrations of the sum of 20 PAHs ranged from 4.3 to 240 ng/m3 in the air and 3.2-21 ng/L in the water column, dominated by phenanthrene and pyrene. OCP concentrations varied from below the detection limit to 150 ng/L in the water column. Common OCPs included α-hexachlorocyclohexane, hexachlorobenzene, and aldrin. Gradients displayed net deposition for PAHs, but equilibrium through the water column. Results from this study provided evidence that key OCPs displayed mostly similar concentrations (at or near equilibrium) in the water at both Conimicut Point and Block Island.
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Affiliation(s)
- Shifra Yonis
- Graduate School of Oceanography, University of Rhode Island, 215 South Ferry Road, Narragansett, RI, USA
| | - Sanober Kahkashan
- Graduate School of Oceanography, University of Rhode Island, 215 South Ferry Road, Narragansett, RI, USA; National Institute of Oceanography, Karachi, Pakistan
| | - Dave Adelman
- Graduate School of Oceanography, University of Rhode Island, 215 South Ferry Road, Narragansett, RI, USA
| | - Rainer Lohmann
- Graduate School of Oceanography, University of Rhode Island, 215 South Ferry Road, Narragansett, RI, USA.
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Zheng H, Liu M, Lohmann R, Li D, Vojta S, Katz S, Wang W, Ke H, Wang C, Cai M. Gaseous polycyclic aromatic hydrocarbons over the South China Sea: Implications for atmospheric transport under monsoon influences. MARINE POLLUTION BULLETIN 2023; 191:114982. [PMID: 37121185 DOI: 10.1016/j.marpolbul.2023.114982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 05/13/2023]
Abstract
The seasonal monsoon variations have significant impact on the atmospheric transport of semi-volatile organic pollutants over the South China Sea (SCS). We analyzed polycyclic aromatic hydrocarbons (PAHs) over the basin and island areas (Yongxing Island and Yongshu Island) in 2017. Gaseous PAHs (0.17-1.4 ng m-3) showed spatio-temporal distinctions in their composition and sources among the basin and island areas. Mixed combustion sources of PAHs were identified over the SCS, including a petroleum source near the island areas. The transport routes of PAHs were inferred by the air mass back trajectories and potential source contribution factor analysis, identifying strong biomass burning signals from the Indochina Peninsula and other Southeast Asian countries. Emissions from approximately 90 % of the combustion sources were transported to basin areas by monsoons, whereas the island areas were dominated by local emissions. This study emphasizes the main potential terrestrial source of PAHs over the SCS under monsoon influences.
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Affiliation(s)
- Haowen Zheng
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Mengyang Liu
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Pollution, City University of Hong Kong, 999077, Hong Kong
| | - Rainer Lohmann
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882, United States
| | - Daning Li
- South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Simon Vojta
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882, United States
| | - Samuel Katz
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882, United States
| | - Weimin Wang
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Hongwei Ke
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Chunhui Wang
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Minggang Cai
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China.
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Wang T, He ZX, Yang J, Wu L, Qiu XW, Bao LJ, Zeng EY. Riverine transport dynamics of PBDEs and OPFRs within a typical e-waste recycling zone: Implications for sink-source interconversion. WATER RESEARCH 2022; 220:118677. [PMID: 35667171 DOI: 10.1016/j.watres.2022.118677] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Despite ample evidence on spreading of e-waste derived hazardous materials, riverine transport of organic contaminants from e-waste recycling zones to surrounding areas has not been evaluated. To address this issue, passive and grab sampling methods were used to assess sediment-water diffusion and horizontal transport of polybrominated diphenyl ethers (PBDEs) and organophosphorus flame retardant (OPFRs) at upstream and downstream sites of two rivers in a typical e-waste recycling zone. Sediment acted as a source of BDE-17 with fluxes of 0.007-0.04 ng m-2 d-1 at all sampling sites. BDE-47 and BDE-99 reached equilibrium between overlying water and sediment porewater. Sediment interconverted from a sink at the upstream site to a source of OPFRs at the downstream site with a flux varying between -7.3 and 234 ng m-2 d-1. The amounts of OPFRs (11-45 g d-1) via horizontal riverine transport were greater than those of PBDEs (0.68-2 g d-1). The vertical sediment-water diffusion of PBDEs and OPFRs was not significant compared to horizontal riverine transport. The annual riverine outputs of PBDEs and OPFRs from the downstream sites were 250-330 g and 12,000-16,500 g, respectively, indicating the significance of riverine transport of organic contaminants from e-waste recycling zones to surrounding areas.
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Affiliation(s)
- Teng Wang
- Guangdong Provincial Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Zi-Xuan He
- Guangdong Provincial Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Jun Yang
- Guangdong Provincial Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Liang Wu
- Guangdong Provincial Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Xia-Wen Qiu
- Guangdong Provincial Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Lian-Jun Bao
- Guangdong Provincial Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China.
| | - Eddy Y Zeng
- Guangdong Provincial Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
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Zhao W, Cai M, Adelman D, Khairy M, Lin Y, Li Z, Liu H, Lohmann R. Legacy halogenated organic contaminants in urban-influenced waters using passive polyethylene samplers: Emerging evidence of anthropogenic land-use-based sources and ecological risks. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 298:118854. [PMID: 35033618 DOI: 10.1016/j.envpol.2022.118854] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
Legacy halogenated organic pollutants, including organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs), remain ubiquitous in the environment and continue to pose potential (eco-)toxicological threats because of their ongoing releases from land-based sources. This study investigated the spatial trends of freely dissolved PCBs and OCPs by polyethylene passive samplers, and provided evidence of their land-use-based sources and ecological risk in an urbanized estuary area of Narragansett Bay. Dissolved Σ29PCB concentrations ranged from 0.01 to 1.37 ng L-1, and exhibited higher concentrations in the upper, more urban/built-up watershed, and in north coastal areas. Major inputs of PCBs were urban stormwater or treated wastewater that might carry past releases of Aroclors, pigment manufacturing byproducts, and volatilization-associated PCBs from ageing buildings from the Narragansett watershed to the bay. The dioxin toxicity equivalent values of Σ5PCBs were 8.6E-03 pg L-1 in water. Dissolved OCP concentrations had similar spatial trends to PCBs and were dominated by DDTs (average 230 pg L-1), followed by chlordanes (average 230 pg L-1), and HCB (average 22 pg L-1). Secondary sources of past usage and historic contamination were expected to re-enter the surface water via atmospheric transport and deposition. The risk quotients of DDE, DDD, DDT and α-Endosulfane showed medium to high ecological risks in the northern area, while chlordane, HCB, oxychlordane, and heptachlor epoxide showed low to negligible risks in all zones. This study presented new insights into the presence, sources and transport of legacy halogenated organic contaminants in an urban estuary's watershed by combining passive samplers and geographic information system (GIS) technology. The approach is promising and could be extended to get better understand of terrestrial pollutant mobilization into estuaries affected by anthropogenic activities.
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Affiliation(s)
- Wenlu Zhao
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, PR China; Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, 310012, China; Graduate School of Oceanography, University of Rhode Island, Narragansett, RI, 02882-1197, USA; College of Ocean and Earth Science, Xiamen University, Xiamen, 361005, PR China
| | - Minggang Cai
- College of Ocean and Earth Science, Xiamen University, Xiamen, 361005, PR China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, PR China
| | - David Adelman
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI, 02882-1197, USA
| | - Mohammed Khairy
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI, 02882-1197, USA; Department of Environmental Sciences, Faculty of Science, Alexandria University, 21511, Moharam Bek, Alexandria, Egypt
| | - Yan Lin
- School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen, 361000, China
| | - Zhiheng Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, PR China
| | - Huijun Liu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, PR China
| | - Rainer Lohmann
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI, 02882-1197, USA.
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Zheng H, Cai M, Zhao W, Khairy M, Chen M, Deng H, Lohmann R. Net volatilization of PAHs from the North Pacific to the Arctic Ocean observed by passive sampling. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 276:116728. [PMID: 33611202 DOI: 10.1016/j.envpol.2021.116728] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/07/2021] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
The North Pacific-Arctic Oceans are important compartments for semi-volatile organic compounds' (SVOCs) global marine inventory, but whether they act as a "source" or "sink" remains controversial. To study the air-sea exchange and fate of SVOCs during their poleward long-range transport, low-altitude atmosphere and surface seawater were measured for polycyclic aromatic hydrocarbons (PAHs) by passive sampling from July to September in 2014. Gaseous PAH concentrations (0.67-13 ng m-3) were dominated by phenanthrene (Phe) and fluorene (Flu), which displayed an inverse correlation with latitude, as well as a significant linear relationship with partial pressure and inverse temperature. Concentrations of PAHs in seawater (1.8-16 ng L-1) showed regional characteristics, with higher levels near the East Asia and lower values in the Bering Strait. The potential impact from the East Asian monsoon was suggested for gaseous PAHs, which - similar to PAHs in surface seawater - were derived from combustion sources. In addition, the data implied net volatilization of PAHs from seawater into the air along the entire cruise; fluxes displayed a similar pattern to regional and monthly distribution of PAHs in seawater. Our results further emphasized that air-sea exchange is an important process for PAHs in the open marine environments.
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Affiliation(s)
- Haowen Zheng
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, China; College of Ocean and Earth Science, Xiamen University, Xiamen, 361102, China
| | - Minggang Cai
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, China; College of Ocean and Earth Science, Xiamen University, Xiamen, 361102, China
| | - Wenlu Zhao
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Mohammed Khairy
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI, 02882-1197, United States; Department of Environmental Sciences, Faculty of Science, Alexandria University, 21511, Moharam Bek, Alexandria, Egypt
| | - Mian Chen
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, China; College of Ocean and Earth Science, Xiamen University, Xiamen, 361102, China
| | - Hengxiang Deng
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, China; College of Ocean and Earth Science, Xiamen University, Xiamen, 361102, China
| | - Rainer Lohmann
- Graduate School of Oceanography, University of Rhode Island, Narragansett, RI, 02882-1197, United States.
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Rodríguez-Sierra CJ, Adelman D, Vojta Š, Mansilla-Rivera I, Lohmann R. Passive Sampling of Persistent Organic Pollutants in Four Coastal Aquatic Systems of Puerto Rico: A Pilot Study. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 103:770-775. [PMID: 31620816 PMCID: PMC7122006 DOI: 10.1007/s00128-019-02731-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 10/05/2019] [Indexed: 06/10/2023]
Abstract
Little is known about the presence and effects of polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) in Puerto Rico's waters. Four coastal aquatic systems were investigated using low-density polyethylene passive sampling for PCBs and OCPs in water and its overlying air. The highest total freely dissolved and gaseous concentrations of PCBs were found in Guánica Bay, with 4000 pg/L and 270 pg/m3, respectively. Five OCPs were detected, mainly in water, with greatest concentrations (pg/L) in Guánica Bay: α-HCH (7400), p,p'-DDE (390), aldrin (2000), dieldrin (420), and endrin (77). The compound α-HCH was also measured at elevated water concentrations in Condado Lagoon (5700 pg/L) and Laguna Grande (2900 pg/L). Jobos Bay did not show values of concern for these persistence organic pollutants. Levels of PCBs and OCPs in water, particularly in Guánica Bay, exceeded USEPA ambient water quality criteria values representing a human health risk regarding consumption of aquatic organisms.
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Affiliation(s)
- Carlos J Rodríguez-Sierra
- Department of Environmental Health, Graduate School of Public Health, Medical Sciences Campus, University of Puerto Rico, PO Box 365067, San Juan, 00936-5067, Puerto Rico.
| | - David Adelman
- Graduate School of Oceanography, University of Rhode Island, South Ferry Rd., Narragansett, RI, 02882, USA
| | - Šimon Vojta
- Graduate School of Oceanography, University of Rhode Island, South Ferry Rd., Narragansett, RI, 02882, USA
| | - Imar Mansilla-Rivera
- Department of Environmental Health, Graduate School of Public Health, Medical Sciences Campus, University of Puerto Rico, PO Box 365067, San Juan, 00936-5067, Puerto Rico
| | - Rainer Lohmann
- Graduate School of Oceanography, University of Rhode Island, South Ferry Rd., Narragansett, RI, 02882, USA
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