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Abdel-Wareth MTA, Zanaty N, Abd El-Hamid RM, Saleh HA. Polychlorinated biphenyl congeners in water canals and their relationships with water quality parameters: Insights into their risk assessment. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2024; 59:263-276. [PMID: 38584450 DOI: 10.1080/03601234.2024.2336859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 03/22/2024] [Indexed: 04/09/2024]
Abstract
Water pollution with pesticides is one of the most important environmental problems. Polychlorinated biphenyls (PCBs) reach water bodies via agricultural discharge. The aim of this study was to determine the contamination of different water bodies with PCB congeners, and detect the correlation between water quality parameters and seasonal distribution of these PCBs. The results indicated that water canals of AlGharbiah showed the highest ranges of temperature, total dissolved solids (TDS) in spring, and dissolved oxygen (DO) in autumn, while AlQaliobiah water bodies witnessed the highest pH and electrical conductivity (EC) ranges in summer. The highest range of a PCB congener was that of PCB44 (7.96-118.29 µg/g) in sediment samples of Giza, followed by its range (18.01-85.44 µgL-1) in surface water of AlQaliobiah. We found a potential cancer risk from dermal contact with all the investigated PCBs. Principal component analysis (PCA) showed positive correlations between most PCBs and each of EC and TDS, and a negative correlation with DO. While the correlation between PCBs and each of temperature and pH varied according to the geographic location of the governorate. In conclusion, the investigated water canals were contaminated with PCBs, which posed a potential cancer risk and deteriorated water quality.
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Affiliation(s)
| | - Naglaa Zanaty
- Environmental Studies Department, The National Authority for Remote Sensing and Space Science, Cairo, Egypt
| | - Rania M Abd El-Hamid
- Agricultural Research Centre, Central Agricultural Pesticides Laboratory, Giza, Egypt
| | - Hassnaa A Saleh
- Environmental Research Department, Theodor Bilharz Research Institute, Giza, Egypt
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Mouat JS, Li X, Neier K, Zhu Y, Mordaunt CE, La Merrill MA, Lehmler HJ, Jones MP, Lein PJ, Schmidt RJ, LaSalle JM. Networks of placental DNA methylation correlate with maternal serum PCB concentrations and child neurodevelopment. ENVIRONMENTAL RESEARCH 2023; 220:115227. [PMID: 36608759 PMCID: PMC10518186 DOI: 10.1016/j.envres.2023.115227] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/21/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Gestational exposure to polychlorinated biphenyls (PCBs) has been associated with elevated risk for neurodevelopmental disorders. Placental epigenetics may serve as a potential mechanism of risk or marker of altered placental function. Prior studies have associated differential placental DNA methylation with maternal PCB exposure or with increased risk of autism spectrum disorder (ASD). However, sequencing-based placental methylomes have not previously been tested for simultaneous associations with maternal PCB levels and child neurodevelopmental outcomes. OBJECTIVES We aimed to identify placental DNA methylation patterns associated with maternal PCB levels and child neurodevelopmental outcomes in the high-risk ASD MARBLES cohort. METHODS We measured 209 PCB congeners in 104 maternal serum samples collected at delivery. We identified networks of DNA methylation from 147 placenta samples using the Comethyl R package, which performs weighted gene correlation network analysis for whole genome bisulfite sequencing data. We tested placental DNA methylation modules for association with maternal serum PCB levels, child neurodevelopment, and other participant traits. RESULTS PCBs 153 + 168, 170, 180 + 193, and 187 were detected in over 50% of maternal serum samples and were highly correlated with one another. Consistent with previous findings, maternal age was the strongest predictor of serum PCB levels, alongside year of sample collection, pre-pregnancy BMI, and polyunsaturated fatty acid levels. Twenty seven modules of placental DNA methylation were identified, including five which significantly correlated with one or more PCBs, and four which correlated with child neurodevelopment. Two modules associated with maternal PCB levels as well as child neurodevelopment, and mapped to CSMD1 and AUTS2, genes previously implicated in ASD and identified as differentially methylated regions in mouse brain and placenta following gestational PCB exposure. CONCLUSIONS Placental DNA co-methylation modules were associated with maternal PCBs and child neurodevelopment. Methylation of CSMD1 and AUTS2 could be markers of altered placental function and/or ASD risk following maternal PCB exposure.
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Affiliation(s)
- Julia S Mouat
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, CA, USA; Perinatal Origins of Disparities Center, University of California, Davis, CA, USA; Genome Center, University of California, Davis, CA, USA; MIND Institute, University of California, Davis, CA, USA
| | - Xueshu Li
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Kari Neier
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, CA, USA; Perinatal Origins of Disparities Center, University of California, Davis, CA, USA; Genome Center, University of California, Davis, CA, USA; MIND Institute, University of California, Davis, CA, USA
| | - Yihui Zhu
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, CA, USA; Perinatal Origins of Disparities Center, University of California, Davis, CA, USA; Genome Center, University of California, Davis, CA, USA; MIND Institute, University of California, Davis, CA, USA
| | - Charles E Mordaunt
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, CA, USA; Perinatal Origins of Disparities Center, University of California, Davis, CA, USA; Genome Center, University of California, Davis, CA, USA; MIND Institute, University of California, Davis, CA, USA
| | - Michele A La Merrill
- Perinatal Origins of Disparities Center, University of California, Davis, CA, USA; Department of Environmental Toxicology, University of California, Davis, CA, USA
| | - Hans-Joachim Lehmler
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Michael P Jones
- Department of Biostatistics, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Pamela J Lein
- Perinatal Origins of Disparities Center, University of California, Davis, CA, USA; MIND Institute, University of California, Davis, CA, USA; Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Rebecca J Schmidt
- Perinatal Origins of Disparities Center, University of California, Davis, CA, USA; MIND Institute, University of California, Davis, CA, USA; Department of Public Health Sciences, School of Medicine, University of California, Davis, CA, USA
| | - Janine M LaSalle
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, CA, USA; Perinatal Origins of Disparities Center, University of California, Davis, CA, USA; Genome Center, University of California, Davis, CA, USA; MIND Institute, University of California, Davis, CA, USA.
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Li A, Tang Q, Kearney KE, Nagy KL, Zhang J, Buchanan S, Turyk ME. Persistent and toxic chemical pollutants in fish consumed by Asians in Chicago, United States. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 811:152214. [PMID: 34890661 PMCID: PMC9427179 DOI: 10.1016/j.scitotenv.2021.152214] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/09/2021] [Accepted: 12/02/2021] [Indexed: 05/13/2023]
Abstract
Consumption of seafood brings health benefits but may increase the ingestion of contaminants. Compared with other ethnic groups in the U.S., Asians consume seafood more frequently. However, there is little information about how culturally specific fish consumption contributes to exposure to toxicants. In this work, we surveyed fish consumption among Chinese, Korean and Vietnamese communities and purchased 103 seafood samples from local markets in Chicago. Each sample was analyzed for mercury (Hg) and 92 organic chemicals including polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), polybrominated diphenyl ethers (PBDEs), and Dechlorane Plus and related compounds (DPs). The rank order of pollutant concentration in all samples was Hg ≫ Σ66PCBs > Σ17OCPs > Σ8PBDEs > Σ8DPs. Positive correlations were noted among most contaminant groups. Bluefish, pike and tuna steak had the highest mean Hg (>1 mg/kg). The mean Σ66PCBs was highest in pike and bluefish (>100 ng/g) followed by pollock and mackerel (>40 ng/g). Overall, octopus, shrimp and tilapia were the least contaminated; while pike, bluefish, and pollock were the most contaminated. Omega-3 fatty acids were more strongly affiliated with the organic contaminants than mercury. A risk assessment identified seven types of fish that should have consumption limitations and six that should not be consumed. For these seafoods, consumption advice based on Hg levels would adequately protect health. In the survey participants, 17% of seafood mass consumed is from types of fish that should be limited to 1 or 2 meals/week, while 7% of the seafood mass consumed comes from types that should not be consumed at all. This work adds additional contaminants to the profile of health risks resulting from fish consumption among Asian Americans, which can be used in interventions aimed at conserving consumption of healthy fish while avoiding contaminants.
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Affiliation(s)
- An Li
- School of Public Health, University of Illinois at Chicago, Chicago, IL 60612, United States
| | - Qiaozhi Tang
- School of Public Health, University of Illinois at Chicago, Chicago, IL 60612, United States
| | - Kenneth E Kearney
- Department of Earth and Environmental Sciences, University of Illinois at Chicago, Chicago, IL 60607, United States
| | - Kathryn L Nagy
- Department of Earth and Environmental Sciences, University of Illinois at Chicago, Chicago, IL 60607, United States
| | - Jing Zhang
- School of Public Health, University of Illinois at Chicago, Chicago, IL 60612, United States
| | - Susan Buchanan
- School of Public Health, University of Illinois at Chicago, Chicago, IL 60612, United States
| | - Mary E Turyk
- School of Public Health, University of Illinois at Chicago, Chicago, IL 60612, United States.
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Huang Z, Qadeer A, Zheng S, Ge F, Zhang K, Yin D, Zheng B, Zhao X. Fatty acid profile as an efficient bioindicator of PCB bioaccumulation in a freshwater lake food web: A stable isotope guided investigation. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127121. [PMID: 34534807 DOI: 10.1016/j.jhazmat.2021.127121] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/20/2021] [Accepted: 09/01/2021] [Indexed: 06/13/2023]
Abstract
In past studies, the health and ecological risks of PCBs are well established. The impact of low-dose PCBs on aquatic ecosystems for an extended period is a matter of concern in the current era. The application of fatty acids (FAs) as bioindicators of pollution in the freshwater food web is almost unavailable. This study investigated concentrations of 209 PCB congeners, stable isotope levels, and FAs composition in ten freshwater species of Dongtinghu Lake, China. Total PCB congeners (∑PCBs) concentrations were ranged from 4.17 to 38.35 ng/g lipid weight. A total of 84 PCB congeners were detected out of 209 target PCB congeners, particularly PCB101, 118, 138, 153, and 155 found in all samples. The concentrations of 24 PCB congeners increased with trophic levels, but PCB 155 concentrations were consistent throughout trophic levels. The toxic equivalents (TEQ) of dl-PCBs (mostly PCB 126 and 169) also increased with trophic levels Out of total 35 FAs, 21 FAs were significantly positively correlated with 43 PCB congeners. Among FAs, C16:0 was the most abundant and positively correlated with most PCB compounds. Positive correlations between FAs and PCBs indicated that FAs can be used as efficient bioindicators of PCBs pollution in the aquatic food web.
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Affiliation(s)
- Zhifeng Huang
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Abdul Qadeer
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Saisai Zheng
- Nanchang Institute of Technology, Nanchang 330099, China
| | - Fangfang Ge
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Kexin Zhang
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Daqiang Yin
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Binghui Zheng
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Xingru Zhao
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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Oregel-Zamudio E, Alvarez-Bernal D, Franco-Hernandez MO, Buelna-Osben HR, Mora M. Bioaccumulation of PCBs and PBDEs in Fish from a Tropical Lake Chapala, Mexico. TOXICS 2021; 9:toxics9100241. [PMID: 34678937 PMCID: PMC8540629 DOI: 10.3390/toxics9100241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/28/2021] [Accepted: 09/27/2021] [Indexed: 11/21/2022]
Abstract
Lake Chapala is the largest natural freshwater reservoir in Mexico and the third largest lake in Latin America. Lakes are often considered the final deposit of polluting materials; they can be concentrated in the organisms that inhabit them, the water, and the sediments. The PCBs and PBDEs are environmental pollutants highly studied for their known carcinogenic and mutagenic effects. PCB and PBDE bioaccumulation levels were determined in Chirostoma spp., Cyprinus carpio, and Oreochromis aureus. In addition, we monitored the concentrations of PCBs and PBDEs in sediment and water from Lake Chapala were monitored. Samples were collected during two periods, in October 2018 and May 2019. The samples were analyzed by gas chromatography coupled with mass spectrometry. Two bioaccumulation factors were determined in fish, one in relation to the concentration of PCBs and PBDEs in sediments and the other in relation to the concentration of PCBs and PBDEs in water. The PCB levels were 0.55–3.29 ng/g dry weight (dw) in sediments, 1.43–2.98 ng/mL in water, 0.30–5.31 ng/g dw in Chirostoma spp., 1.06–6.07 ng/g dw in Cyprinus carpio, and 0.55–7.20 ng/g dw in Oreochromis aureus. The levels of PBDEs were 0.17–0.35 ng/g dw in sediments, 0.13–0.32 ng/mL in water, 0.01–0.23 ng/g dw in Chirostoma spp., 0–0.31 ng/g dw in Cyprinus carpio, and 0.1–0.22 ng/g dw in Oreochromis aureus. This study provides information for a better understanding of the movement, global distribution, and bioaccumulation of PCBs and PBDEs. The results show that the fish, water, and sediments of Lake Chapala are potential risks to the biota and the local human population.
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Affiliation(s)
- Ernesto Oregel-Zamudio
- Instituto Politécnico Nacional, Unidad Profesional Interdisciplinaria de Biotecnología-IPN (UPIBI), Av. Acueducto, Barrio la Laguna Ticoman, Ciudad de México 07340, Mexico;
- Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Unidad Michoacán, Justo Sierra 28, Col. Centro, Jiquilpan 59510, Mexico; (D.A.-B.); (H.R.B.-O.)
- Correspondence: ; Tel.: +52-353-533-0218
| | - Dioselina Alvarez-Bernal
- Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Unidad Michoacán, Justo Sierra 28, Col. Centro, Jiquilpan 59510, Mexico; (D.A.-B.); (H.R.B.-O.)
| | - Marina Olivia Franco-Hernandez
- Instituto Politécnico Nacional, Unidad Profesional Interdisciplinaria de Biotecnología-IPN (UPIBI), Av. Acueducto, Barrio la Laguna Ticoman, Ciudad de México 07340, Mexico;
| | - Hector Rene Buelna-Osben
- Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Unidad Michoacán, Justo Sierra 28, Col. Centro, Jiquilpan 59510, Mexico; (D.A.-B.); (H.R.B.-O.)
| | - Miguel Mora
- Department of Wildlife and Fisheries Sciences, Texas A&M University, 454 Throckmorton St, College Station, TX 77840, USA;
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