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Wang W, Yuan Y, Ma Y, Wu R, He S, He L. Risk assessment of exposure to 12 kinds of mycotoxins through consumption of Pericarpium Citri Reticulatae collected from Three Gorges Reservoir area of China. Toxicon 2024; 243:107745. [PMID: 38718841 DOI: 10.1016/j.toxicon.2024.107745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/25/2024] [Accepted: 04/30/2024] [Indexed: 05/12/2024]
Abstract
A method for simultaneous determination of 12 mycotoxins in Pericarpium Citri Reticulataeby HPLC-MS/MS was established to analyze the residues of mycotoxins, inwhich from Three Gorges Reservoir area of China, including AFB1, AFB2, AFG1, AFG2, T-2, FB1, FB2, FB3, ZEN, OTA, OTB and DON.In addition, a probabilistic assessment model based on Monte Carlo simulation method was established in combination with pollution data, and the health risk assessment was carried out by the exposure limit method (MOE).The results showed that the method with strong specificity, good linearity and accurate recovery was established and could be used for the determination of 12 mycotoxins in Pericarpium Citri Reticulatae.In general, the total pollution rate of different degrees of pollution in the 36 batches of Pericarpium Citri Reticulatae sampleswas 75 %. It should be noted thatthe proportion of positive samplescontaminated by one toxin was the highest (59.26 %), and the detection rate of FB3 in Pericarpium Citri Reticulataewas the highest (66.67%), followed by AFG1 (44.44 %), indicating that the medicinal material polluted by AFG1 and AFB3 alone or simultaneously was more serious. Specifically, the detection rate of mycotoxins in Chongqing was the highest (92.31%) on account of the high temperature and humidity in Chongqing, followed by Southeast of Sichuan (83.33%) and West of Hubei (45.45%).On the other hand, the MOE of AFB1 and AFB2 calculated were both greater than 10000, indicating that the health risk of AFB1 and AFB2 exposure caused by taking Pericarpium Citri Reticulatae was low, but the risk of high intake population was higher than that of conventional intake population, which needed to be paid attention to. This study can provide a reference for the safety assessment of clinical medication of Pericarpium Citri Reticulatae inThree Gorges Reservoir area.
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Affiliation(s)
- Wenting Wang
- Chongqing Wanzhou Food and Drug Inspection Institute, Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing, 404100, China
| | - Yuan Yuan
- Department of Pharmacy, University of Copenhagen, 999017, Denmark
| | - Yingjie Ma
- Chongqing Wanzhou Food and Drug Inspection Institute, Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing, 404100, China
| | - Rong Wu
- Chongqing Wanzhou Food and Drug Inspection Institute, Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing, 404100, China
| | - Shixin He
- Chongqing Wanzhou Food and Drug Inspection Institute, Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing, 404100, China
| | - Lingzhi He
- Chongqing Wanzhou Food and Drug Inspection Institute, Chongqing Key Laboratory of Development and Utilization of Genuine Medicinal Materials in Three Gorges Reservoir Area, Chongqing, 404100, China.
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Sharma P, Chukwuka AV, Chatterjee S, Bhowmick S, Mistri TK, Chandra Saha N. Fluorene-induced stress in the benthic oligochaete Tubifex tubifex: A multi-biomarker assessment of toxicological pathways and mechanisms under acute and subchronic exposures. CHEMOSPHERE 2024; 352:141412. [PMID: 38336035 DOI: 10.1016/j.chemosphere.2024.141412] [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: 10/16/2023] [Revised: 01/18/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
This study examined the multifaceted impacts of fluorene exposure on Tubifex tubifex, encompassing acute (survival analysis and behavioral responses) and subchronic exposure regimens (antioxidant enzyme response and histopathology), molecular docking studies, and generalized read-across analysis. Survival analysis revealed concentration-dependent increases in toxicity over varying time intervals, with LC50 values decreasing from 30.072 mg/L at 24 h to 12.365 mg/L at 96 h, emphasizing the time-sensitive and concentration-responsive nature of the stressor. Behavioral responses were both concentration- and duration-dependent. While Erratic Movement and Clumping Tendency exhibited earlier responses (within 24 h) at lower concentrations, the wrinkling effect and mucus secretion) exhibited delayed onset, suggesting intricate regulatory mechanisms underlying adaptability to environmental challenges; moreover, the wrinkling effect was consistently induced at higher concentrations, indicating greater sensitivity to the toxic effects of fluorene. With sublethal environmentally relevant concentrations-1.24 mg/l and 2.47 mg/L i.e., 10% and 20% 96 h, respectively-the antioxidant enzyme response (i.e., upregulation of SOD, CAT, and GST) with increasing fluorene concentration, revealing a nonlinear, hormetic response, suggested adaptive protection at lower doses but inhibition at higher concentrations. Histopathological examination indicated that higher fluorene concentrations caused cellular proliferation, inflammation, and severe tissue damage in the digestive tract and body wall. Molecular docking studies demonstrated robust interactions between fluorene and major stress biomarker enzymes, disrupting their functions and inducing oxidative stress. Interactions with cytochrome c oxidase suggested interference with cellular energy production. Generalized Read-Across (GenRA) analysis unveiled shared toxicity mechanisms among fluorene and its analogs, involving the formation of reactive epoxides and the influence of cytochrome P450 enzymes. The diverse functional groups of these analogs, particularly chlorine-containing compounds, were implicated in toxicity through lipid peroxidation and membrane damage. Adverse outcome pathways and broader consequences for aquatic ecosystem health are discussed.
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Affiliation(s)
- Pramita Sharma
- Department of Zoology, The University of Burdwan, Burdwan, West Bengal, India
| | - Azubuike Victor Chukwuka
- Department of Environmental Quality Control (EQC), National Environmental Standards and Regulations Enforcement Agency, Nigeria.
| | | | - Shovonlal Bhowmick
- Department of Chemical Technology, University of Calcutta, 92, A.P.C. Road, Kolkata, 700009, India
| | - Tapan Kumar Mistri
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur Campus, SRM Nagar, Potheri, Chennai, 603203, India
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Ndwabu S, Malungana M, Mahlambi P. Efficiency comparison of extraction methods for the determination of 11 of the 16 USEPA priority polycyclic aromatic hydrocarbons in water matrices: Sources of origin and ecological risk assessment. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2024. [PMID: 38358000 DOI: 10.1002/ieam.4904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/16/2024]
Abstract
As a result of their toxicity, ease of analysis, and environmental occurrence, 16 polycyclic aromatic hydrocarbons (PAHs) were chosen as priority pollutants by the USEPA. Few studies have been conducted to assess the levels of PAHs in South Africa, especially KwaZulu Natal province, and no work has been done in the selected study area. Therefore, this study aimed to evaluate the levels of such PAHs in river water and wastewater samples and evaluate their source and ecological risk. The status of these PAHs in the South African environment has not been investigated fully, which is a gap this study intended to fill. The PAHs were determined using solid-phase extraction (SPE) and dispersive liquid-liquid microextraction (DLLME) methods. The optimization and validation of these methods indicated that both methods can be used for the extraction of PAHs in liquid samples. This is because of the acceptable %recovery of 72.1%-118% for SPE and 70.7%-88.4% for DLLME with a %RSD less than 10% (indicating high precision) that was obtained. The limit of detection and limit of quantification ranged from 5.0 to 18 ng/L and 6.0-20 ng/L for SPE and from 10 to 44 ng/L and 11 to 63 ng/L for DLLME. These results demonstrated that SPE is more accurate and sensitive than DLLME, which was also confirmed by statistical analysis. The PAH concentration levels ranged from not detected (nd) to 1046 ng/L in river water and nd to 778 ng/L in wastewater samples with naphthalene demonstrating dominance over all other PAHs in both water matrices. The PAHs were found to be of petrogenic origin and posed low ecological risk on average. Integr Environ Assess Manag 2024;00:1-13. © 2024 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).
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Affiliation(s)
- Sinayo Ndwabu
- Department of Scientific Services, Laboratory Services, Pietermaritzburg, South Africa
- Department of Chemistry, University of KwaZulu Natal, Pietermaritzburg, South Africa
| | - Mncedisi Malungana
- Department of Scientific Services, Laboratory Services, Pietermaritzburg, South Africa
| | - Precious Mahlambi
- Department of Chemistry, University of KwaZulu Natal, Pietermaritzburg, South Africa
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Shen Q, Yu H, Cao Y, Guo Z, Hu L, Duan L, Sun X, Lin T. Distribution and sources of polycyclic aromatic hydrocarbons in surface sediments of the East China marginal seas: Significance of the terrestrial input and shelf mud deposition. MARINE POLLUTION BULLETIN 2024; 199:115920. [PMID: 38113801 DOI: 10.1016/j.marpolbul.2023.115920] [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: 10/26/2023] [Revised: 12/08/2023] [Accepted: 12/10/2023] [Indexed: 12/21/2023]
Abstract
To investigate the distribution, sources, influencing factors, and ecological risk of polycyclic aromatic hydrocarbons (PAHs) in East China Marginal Seas (ECMSs) sediments, we measured the concentrations of 16 PAHs in 104 surface sediment samples collected from the ECMSs in 2014 and 2016. Total PAH concentration (∑PAHs) ranged from 4.49 to 163.66 ng/g dry weight (dry w), with 65.98 ± 33.00 (mean ± SD) ng/g dry w. The highest PAH concentrations and total organic carbon were observed in areas with fine-grained sediments in the Bohai Sea (BS), Yellow Sea (YS), and coastal East China Sea (ECS), indicating the prominent influence of regional hydrodynamics and sediment properties. The dominant PAH congener in BS and YS was BbF, whereas coastal ECS was Phe. The heterogeneity of PAH sources implies that terrestrial PAH input and shelf mud deposition have crucial roles in the source-sink processes of PAHs in a strongly human-influenced marginal sea.
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Affiliation(s)
- Qi Shen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200433, China; State Environmental Protection Key Laboratory of Land and Sea Ecological Governance and Systematic Regulation, Shandong Academy for Environmental Planning, Jinan 250101, China
| | - Huimin Yu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200433, China
| | - Yibo Cao
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200433, China
| | - Zhigang Guo
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200433, China; State Environmental Protection Key Laboratory of Land and Sea Ecological Governance and Systematic Regulation, Shandong Academy for Environmental Planning, Jinan 250101, China; Institute of Eco-Chongming (IEC), Shanghai, 202162, China.
| | - Limin Hu
- College of Marine Geosciences, Key Laboratory of Submarine Geosciences and Prospecting Techniques, Ocean University of China, Qingdao 266100, China
| | - Lian Duan
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200433, China
| | - Xueshi Sun
- College of Marine Geosciences, Key Laboratory of Submarine Geosciences and Prospecting Techniques, Ocean University of China, Qingdao 266100, China
| | - Tian Lin
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
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Nahar A, Akbor MA, Sarker S, Bakar Siddique MA, Shaikh MAA, Chowdhury NJ, Ahmed S, Hasan M, Sultana S. Dissemination and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in water and sediment of Buriganga and Dhaleswari rivers of Dhaka, Bangladesh. Heliyon 2023; 9:e18465. [PMID: 37560670 PMCID: PMC10407051 DOI: 10.1016/j.heliyon.2023.e18465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 07/18/2023] [Accepted: 07/18/2023] [Indexed: 08/11/2023] Open
Abstract
Concentration, source, ecological and health risks of sixteen polycyclic aromatic hydrocarbons (PAHs) were estimated for water and sediment samples of two urban rivers namely Buriganga River (BR) and Dhaleswari River (DR). The mean concentration of ∑PAHs in BR water and sediment were 9619.2 ngL-1 and 351.6 ngg-1, respectively. Furthermore, the average PAH concentrations detected in DR water and sediment were 1979.1 ngL-1 and 792.9 ngg-1, respectively. The composition profile showed that 3-ring PAHs were dominant in the water matrix; however, 5-ring PAHs were prevalent in the sediment samples of both rivers. Sources apportion study of PAHs indicated that mixed combustion and petroleum sources are responsible for PAHs contamination in the rivers. Ecological risk study of water suggested that the aquatic lives of both rivers are threatened by Fla, BbF, BkF, DahA, and IcdP, as presented above the threshold level. Comparison with sediment quality guidelines (SQGs) indicated that adverse effects might cause occasionally in the sediment ecosystem in DR at certain sampling sites for Nap, Acy, Fl, Phe, Ant, Pyr, Chr, BaP, and DahA. On the other hand, the presence of Nap, Acy and DahA might occasionally cause adverse biological effects in the BR sediment ecosystem. Estimated hazard quotient (HI > 1) and carcinogenic risk (CRtotal > 10-4) values indicated that local inhabitants living in the vicinity of the rivers are prone to high health risks.
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Affiliation(s)
- Aynun Nahar
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh
| | - Md. Ahedul Akbor
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh
| | - Shudeepta Sarker
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh
- Department of Forest Biomaterials, North Carolina State University, Raleigh NC, 27695, USA
| | - Md. Abu Bakar Siddique
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh
| | - Md. Aftab Ali Shaikh
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh
- Department of Chemistry, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Nushrat Jahan Chowdhury
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh
| | - Shamim Ahmed
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh
| | - Mehedi Hasan
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh
| | - Shahnaz Sultana
- Institute of National Analytical Research and Services (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh
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Gu L, Hu B, Fu Y, Zhou W, Li X, Huang K, Zhang Q, Fu J, Zhang H, Zhang A, Fu J, Jiang G. Occurrence and risk assessment of organophosphate esters in global aquatic products. WATER RESEARCH 2023; 240:120083. [PMID: 37224669 DOI: 10.1016/j.watres.2023.120083] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 05/12/2023] [Accepted: 05/13/2023] [Indexed: 05/26/2023]
Abstract
Organophosphate esters (OPEs), as an important class of new pollutants, have been pervasively detected in global aquatic products, arousing widespread public concern due to their potential bioaccumulative behavior and consequent risks. With the continuous improvement of living standards of citizens, there have been constant increment of the proportion of aquatic products in diets of people. The levels of OPEs exposed to residents may also be rising due to the augmented consumption of aquatic products, posing potential hazards on human health, especially for people in coastal areas. The present study integrated the concentrations, profiles, bioaccumulation, and trophic transfer of OPEs in global aquatic products, including Mollusca, Crustacea, and fish, evaluated health risks of OPEs through aquatic products in daily diets by Mont Carol Simulation (MCS), and found Asia has been the most polluted area in terms of the concentration of OPEs in aquatic products, and would have been increasingly polluted. Among all studied OPEs, chlorinated OPEs generally showed accumulation predominance. It is worth noting that some OPEs were found bioaccumulated and/or biomagnified in aquatic ecosystems. Though MCS revealed relative low exposure risks of residents, sensitive and special groups such as children, adolescents, and fishermen may face more serious health risks than the average residents. Finally, knowledge gaps and recommendations for future research are discussed encouraging more long-term and systematic global monitoring, comprehensive studies of novel OPEs and OPEs metabolites, and more toxicological studies to completely evaluate the potential risks of OPEs.
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Affiliation(s)
- Luyao Gu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Boyuan Hu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yilin Fu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049 China
| | - Wei Zhou
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xiaomin Li
- Institute of Quality Standard and Testing Technology for Agro-Products, The Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China
| | - Kai Huang
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Qun Zhang
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jie Fu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China.
| | - Haiyan Zhang
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Aiqian Zhang
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, Institute of Environment and Health, Jianghan University, Wuhan 430056, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049 China
| | - Jianjie Fu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, Institute of Environment and Health, Jianghan University, Wuhan 430056, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049 China.
| | - Guibin Jiang
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, Institute of Environment and Health, Jianghan University, Wuhan 430056, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049 China
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Thulasinathan B, Ganesan V, Manickam P, Kumar P, Govarthanan M, Chinnathambi S, Alagarsamy A. Simultaneous electrochemical determination of persistent petrogenic organic pollutants based on AgNPs synthesized using carbon dots derived from mushroom. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 884:163729. [PMID: 37120020 DOI: 10.1016/j.scitotenv.2023.163729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/07/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are highly carcinogenic substances and accumulate in water bodies through various industries. Due to their harmful effects on humans, it is very important to monitor PAHs in various water resources. In the present work, we report an electrochemical sensor based on silver nanoparticles synthesized using mushroom-derived carbon dots for the simultaneous determination of anthracene and naphthalene, for the first time. Pleurotus species mushroom was used to synthesize the carbon dots (C-dots) via the hydrothermal method and these C-dots were used as a reducing agent for the synthesis of silver nanoparticles (AgNPs). The synthesized AgNPs have been characterized through UV-Visible and FTIR spectroscopy, DLS, XRD, XPS, FE-SEM, and HR-TEM. Well-characterized AgNPs were used to modify glassy carbon electrodes (GCEs) by the drop-casting method. Ag-NPs/GCE has shown strong electrochemical activity towards the oxidation of anthracene and naphthalene at well-separated potentials in phosphate buffer saline (PBS) at pH 7.0. The sensor exhibited a wide linear working range of 250 nM to 1.15 mM for anthracene and 500 nM to 842 μM for naphthalene with the corresponding lowest detection limits (LODs) of 112 nM and 383 nM respectively with extraordinary anti-interference ability against many possible interferents. The fabricated sensor showed high stability and reproducibility. The usefulness of the sensor for the monitoring of anthracene and naphthalene in a seashore soil sample has been demonstrated by the standard addition method. The sensor gave better results with a high recovery percentage indicating the first-ever device to detect two PAHs at the single electrode with the best analytical results.
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Affiliation(s)
- Boobalan Thulasinathan
- Bioenergy and Bioremediation Laboratory, Department of Microbiology, Alagappa University, Karaikudi, India; Electrodics & Electrocatalysis Division, CSIR - Central Electrochemical Research Institute (CECRI), Karaikudi 630003, India
| | - Veerapandi Ganesan
- Department of Bioelectronics and Biosensors, Alagappa University, Karaikudi 630 003, Tamilnadu, India
| | - Pandiaraj Manickam
- Electrodics & Electrocatalysis Division, CSIR - Central Electrochemical Research Institute (CECRI), Karaikudi 630003, India
| | - Ponnuchamy Kumar
- Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu 630003, India
| | - Muthusamy Govarthanan
- Department of Environmental Engineering, Kyungpook National University, 41566 Daegu, Republic of Korea; Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu 600077, India
| | - Sekar Chinnathambi
- Department of Bioelectronics and Biosensors, Alagappa University, Karaikudi 630 003, Tamilnadu, India.
| | - Arun Alagarsamy
- Bioenergy and Bioremediation Laboratory, Department of Microbiology, Alagappa University, Karaikudi, India.
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Faboya OL, Sojinu SO, Otugboyega JO. Preliminary investigation of polycyclic aromatic hydrocarbons (PAHs) concentration, compositional pattern, and ecological risk in crude oil-impacted soil from Niger delta, Nigeria. Heliyon 2023; 9:e15508. [PMID: 37151689 PMCID: PMC10161696 DOI: 10.1016/j.heliyon.2023.e15508] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/09/2023] [Accepted: 04/11/2023] [Indexed: 05/09/2023] Open
Abstract
Crude oil contamination could serve as an important source of polycyclic aromatic hydrocarbons (PAHs) in the environment. Determining the concentration and distribution of PAHs and their ecological risk could provide clues for appropriate remediation. The present study investigated the concentrations, composition pattern, and ecological risk of PAHs in crude oil-contaminated soil collected from the Niger Delta, Nigeria. The concentrations of Σ29PAHs and 16 priority US-EPA PAHs (Σ16PAHs) in the soil ranged from 24230.68 to 40845.32 ng/g (average: 29953.47 ng/g) and 7361.66-14141.49 ng/g (average: 9819.96 ng/g), respectively. The concentrations of Σ16PAHs US-EPA in all the studied locations far exceeded the safety value of 1000 ng/g set by the soil quality guidelines of Switzerland and above which is regarded as being highly contaminated for Agricultural soils of Poland. The percentage composition of 2-, 3-,4-, 5-, and 6-ring in the soils were 33.69%, 56.31%, 9.47%, 0.52%, and 0.02% of the total PAHs, respectively, indicating the predominance of low molecular weight PAHs typical of petrogenic origin. Ecological risk assessment indicated a high risk to the soil biota and ecosystem in the studied soil samples as presented by individual PAH and total PAHs. 2-, 3- and 4-ring PAHs in the soil contributed significantly to the ecological risk burden in the soils. This research work provides useful information on the ecological risk associated with crude oil contamination and consequently would assist the government in formulating precise, targeted, and effective remediation measures for soil contaminated with crude oil.
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Affiliation(s)
- Oluwabamise L. Faboya
- Department of Chemistry, Federal University, Oye-Ekiti, Ekiti State, Nigeria
- Corresponding author.
| | - Samuel O. Sojinu
- Department of Chemistry, College of Physical Sciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - Joseph O. Otugboyega
- Department of Environmental Management and Toxicology, Federal University, Oye-Ekiti, Ekiti State, Nigeria
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Ben Othman H, Pick FR, Sakka Hlaili A, Leboulanger C. Effects of polycyclic aromatic hydrocarbons on marine and freshwater microalgae - A review. JOURNAL OF HAZARDOUS MATERIALS 2023; 441:129869. [PMID: 36063709 DOI: 10.1016/j.jhazmat.2022.129869] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 07/18/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
The first synthetic review of the PAHs effects on microalgae in experimental studies and aquatic ecosystems is provided. Phytoplankton and phytobenthos from marine and freshwaters show a wide range of sensitivities to PAHs, and can accumulate, transfer and degrade PAHs. Different toxicological endpoints including growth, chlorophyll a, in vivo fluorescence yield, membrane integrity, lipid content, anti-oxidant responses and gene expression are reported for both freshwater and marine microalgal species exposed to PAHs in culture and in natural assemblages. Photosynthesis, the key process carried out by microalgae appears to be the most impacted by PAH exposure. The effect of PAHs is both dose- and species-dependent and influenced by environmental factors such as UV radiation, temperature, and salinity. Under natural conditions, PAHs are typically present in mixtures and the toxic effects induced by single PAHs are not necessarily extrapolated to mixtures. Natural microalgal communities appear more sensitive to PAH contamination than microalgae in monospecific culture. To further refine the ecological risks linked to PAH exposure, species-sensitivity distributions (SSD) were analyzed based on published EC50s (half-maximal effective concentrations during exposure). HC5 (harmful concentration for 5% of the species assessed) was derived from SSD to provide a toxicity ranking for each of nine PAHs. The most water-soluble PAHs naphthalene (HC5 = 650 µg/L), acenaphthene (HC5 = 274 µg/L), and fluorene (HC5 = 76.8 µg/L) are the least toxic to microalgae, whereas benzo[a]pyrene (HC5 = 0.834 µg/L) appeared as the more toxic. No relationship between EC50 and cell biovolume was established, which does not support assumptions that larger microalgal cells are less sensitive to PAHs, and calls for further experimental evidence. The global PAHs HC5 for marine species was on average higher than for freshwater species (26.3 and 1.09 µg/L, respectively), suggesting a greater tolerance of marine phytoplankton towards PAHs. Nevertheless, an important number of experimental exposure concentrations and reported toxicity thresholds are above known PAHs solubility in water. The precise and accurate assessment of PAHs toxicity to microalgae will continue to benefit from more rigorously designed experimental studies, including control of exposure duration and biometric data on test microalgae.
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Affiliation(s)
- Hiba Ben Othman
- Laboratoire de Phytoplanctonologie, Faculté des Sciences de Bizerte, Université de Carthage, Zarzouna, 7021 Bizerte, Tunisia; MARBEC, Univ Montpellier, IRD, Ifremer, CNRS, Sète, France
| | - Frances R Pick
- Department of Biology, University of Ottawa, Ottawa K1N 6N5, Canada
| | - Asma Sakka Hlaili
- Laboratoire de Phytoplanctonologie, Faculté des Sciences de Bizerte, Université de Carthage, Zarzouna, 7021 Bizerte, Tunisia; Université de Tunis El Manar, Faculté des Sciences de Tunis, LR18ES41 Sciences de l'Environnement, Biologie et Physiologie des Organismes Aquatiques, Tunis, Tunisia
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10
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Nematollahi MJ, Rastegari Mehr M, Shakeri A, Amjadian K, Ebrahimi P, Pirouei M. Polycyclic aromatic hydrocarbons (PAHs) in soils around oil refineries; Case study: Erbil and Kirkuk refineries, Iraq- A modelling approach. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2022; 20:699-716. [PMID: 36406609 PMCID: PMC9672271 DOI: 10.1007/s40201-022-00809-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/01/2022] [Indexed: 06/11/2023]
Abstract
Purpose Political tensions in Iraq have made attention to environmental issues not a priority for the authorities. Therefore, the influence of Kirkuk and Erbil refineries on contamination of the surrounding soil by polycyclic aromatic hydrocarbons (PAHs), were studied. Methods 25 soil samples were collected and analyzed using high-performance liquid chromatography (HPLC), and their fate and health risk were investigated using Exposure Model for Soil-Organic Fate and Transport (EMSOFT) and the Monte Carlo Simulation (MCS) model. Results High ∑PAHs contamination (raged from 212.8 to 12,790.4 ppb), the dominance of pyrogenic sources, and high ecological risk were observed. The mean hazard index values for children (0.043) are higher than those for adults (0.02), while the incremental lifetime carcinogenic risk values for adults (8.50E-4) are greater than those for children (5.27E-4). Pyrene is the significant soil PAH from the depth of 3 cm downwards, while phenanthrene and fluorene are the major constituents of PAHs between the depth of 3 and 10 cm. Also, low molecular weight PAHs significantly decrease in soil layers over the time frame, and maximum PAHs concentrations belong to high molecular weight PAHs over 20 years. Conclusion Using an appropriate monitoring system, as well as sound management decisions to reduce the emission of environmental pollution are needed. Also, it seems that the use of constant values for soil physicochemical parameters such as moisture and porosity, despite seasonal variations, may result in uncertainty for fate and transport modelling. Therefore, seasonal sampling and analysis of soil parameters, would be helpful. Supplementary Information The online version contains supplementary material available at 10.1007/s40201-022-00809-y.
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Affiliation(s)
| | - Meisam Rastegari Mehr
- Department of Applied Geology, Faculty of Earth Sciences, Kharazmi University, Tehran, 15614 Iran
- Water Research Center, Kharazmi University, Tehran, 15614 Iran
| | - Ata Shakeri
- Department of Applied Geology, Faculty of Earth Sciences, Kharazmi University, Tehran, 15614 Iran
- Water Research Center, Kharazmi University, Tehran, 15614 Iran
| | - Keyvan Amjadian
- Department of Petroleum Geoscience, Faculty of Science, Soran University, Soran, Kurdistan Region Iraq
- Scientific Research Center, Soran University, Soran, Kurdistan Region Iraq
| | - Pooria Ebrahimi
- Department of Earth, Environmental and Resources Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Mohammad Pirouei
- Department of Petroleum Geoscience, Faculty of Science, Soran University, Soran, Kurdistan Region Iraq
- Scientific Research Center, Soran University, Soran, Kurdistan Region Iraq
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11
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Das N, Bhuyan B, Pandey P. Correlation of soil microbiome with crude oil contamination drives detection of hydrocarbon degrading genes which are independent to quantity and type of contaminants. ENVIRONMENTAL RESEARCH 2022; 215:114185. [PMID: 36049506 DOI: 10.1016/j.envres.2022.114185] [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: 03/24/2022] [Revised: 08/12/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
The impacts of crude oil contamination on soil microbial populations were explored in seven different polluted areas near oil and gas drilling sites and refineries of Assam, India. Using high-throughput sequencing techniques, the functional genes and metabolic pathways involved in the bioconversion of crude oil contaminants by the indigenous microbial community were explored. Total petroleum hydrocarbon (TPH) concentrations in soil samples ranged from 1109.47 to 75,725.33 mg/kg, while total polyaromatic hydrocarbon (PAH) concentrations ranged from 0.780 to 560.05 mg/kg. Pyrene, benzo[a]anthracene, naphthalene, phenanthrene, and anthracene had greater quantities than the maximum permitted limits, suggesting a greater ecological risk, in comparison to other polyaromatic hydrocarbons. According to the metagenomic data analysis, the bacterial phyla Proteobacteria, Actinobacteria, Acidobacteria, and Bacteroides were the most prevalent among all polluted areas. The most prominent hydrocarbon degraders in the contaminated sites included Burkholderia, Mycobacterium, Polaromonas, and Pseudomonas. However, the kinds of pollutants and their concentrations did not correlate with the abundances of respective degrading genes for all polluted locations, as some of the sites with little to low PAH contamination had significant abundances of corresponding functional genes for degradation. Thus, the findings of this study imply that the microbiome of hydrocarbon-contaminated areas, which are biologically involved in the degradation process, has various genes, operons and catabolic pathways that are independent of the presence of a specific kind of contaminant.
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Affiliation(s)
- Nandita Das
- Soil and Environmental Microbiology Lab, Department of Microbiology, Assam University, Silchar, 788011, Assam, India
| | - Bhrigu Bhuyan
- Soil and Environmental Microbiology Lab, Department of Microbiology, Assam University, Silchar, 788011, Assam, India
| | - Piyush Pandey
- Soil and Environmental Microbiology Lab, Department of Microbiology, Assam University, Silchar, 788011, Assam, India.
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12
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Amaringo F, Puerta Y, Molina F. Probabilistic Risk Assessment of Polycyclic Aromatic Hydrocarbons in a Colombian Reservoir. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 109:518-525. [PMID: 35869989 PMCID: PMC9392700 DOI: 10.1007/s00128-022-03567-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
The purpose of this research was to evaluate the concentrations, sources and ecological risk assessment of sixteen polycyclic aromatic hydrocarbons (PAHs) present in water from the La Fe reservoir, Colombia in the months of October and November of 2017 and 2018. Concentrations of PAHs in water were measured with semipermeable membrane devices (SPMD) which allow obtaining the dissolved concentrations of the PAHs in the reservoir, emphasizing the reactivity and bioavailability in the environment. The PAHs analyses were carried out by means of gas chromatography, coupled with tandem mass spectrometry (GC/MS-MS) with triple quadrupole (QqQ). The environmental risk assessment using the estimation of risk quotient with deterministic and probabilistic method, the predictive no-effect concentration (PNEC) and environmental exposure concentration (EEC) in water indicate a negligibe risk for probabilistic method for all PAHs evaluated (RQ < 0.1).
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Affiliation(s)
- F Amaringo
- Research Group in Management and Environmental Modeling, GAIA, University of Antioquia, Medellín, Colombia.
| | - Y Puerta
- Research Group GeoLimna, Faculty of Engineering, University of Antioquia, 67th Street # 53 - 108, Medellín, Colombia
| | - F Molina
- Research Group in Management and Environmental Modeling, GAIA, University of Antioquia, Medellín, Colombia
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13
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Wang M, Liu C, Zhang J, Xiao K, Pan T. Synergistic effects of a functional bacterial consortium on enhancing phenanthrene biodegradation and counteracting rare earth biotoxicity in liquid and slurry systems. Lett Appl Microbiol 2022; 75:1515-1525. [PMID: 36000244 DOI: 10.1111/lam.13817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/06/2022] [Accepted: 08/20/2022] [Indexed: 11/26/2022]
Abstract
The biodegradation of polycyclic aromatic hydrocarbons (PAHs) by microorganisms in the environment is often inhibited by coexisting metal ions. The aim of this work is to study a bacterial consortium for enhancing phenanthrene biodegradation under the inhibition effect of the rare earth (RE) ions Ce3+ and Y3+ . This bacterial consortium was composed of two bacteria, namely, the RE-adsorbing Bacillus subtilis MSP117 and the phenanthrene-degrading Moraxella osloensis CFP312. Ce3+ and Y3+ at the concentration of 1.15 mmol L-1 inhibited CFP312 from degrading phenanthrene but not glucose. Using glucose as a co-substrate could promote the proliferation of CFP312 but decreased phenanthrene degradation. Adsorption experiments and electron microscopy imaging showed that CFP312 had no RE ions adsorption capacity for RE ions and that RE elements could not be observed on its cell surfaces. MSP117 could adsorb 0.14 and 0.12 mmol g-1 wet cells of Ce3+ and Y3+ in aqueous solution, respectively, thus demonstrating considerable adsorption capacity. The MSP117 cell surface immobilized part of the free RE ions and reduced their bioaccessibility, thereby alleviating their biotoxic effect on phenanthrene degradation by CFP312. In liquid and slurry systems, glucose, which was used as the co-substrate of the bacterial consortium, must be kept at a low level to avoid the catabolism repression of phenanthrene degradation by CFP312.
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Affiliation(s)
- Meini Wang
- Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control, and School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Congyang Liu
- Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control, and School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Jiameng Zhang
- Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control, and School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Kun Xiao
- Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control, and School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Tao Pan
- Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control, and School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
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Dai Y, Wang Y, Zuo G, Kong J, Guo Y, Sun C, Xian Q. Photocatalytic degradation mechanism of phenanthrene over visible light driven plasmonic Ag/Ag 3PO 4/g-C 3N 4 heterojunction nanocomposite. CHEMOSPHERE 2022; 293:133575. [PMID: 35033521 DOI: 10.1016/j.chemosphere.2022.133575] [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: 11/26/2021] [Revised: 12/25/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Visible light driven plasmonic Ag/Ag3PO4/g-C3N4 heterojunction nanocomposite with regular morphology was prepared via a modified facile method. The two-dimensional ultrathin g-C3N4 nanosheet is uniformly wrapped on the surface of Ag3PO4 nanopolyhedron. A charge transfer bridge was built between Ag3PO4 nanopolyhedron and g-C3N4 nanosheet due to the reduction of Ag nanoparticles. This structure can inhibit the recombination of photogenerated electron-hole pairs and promote the transfer of photogenerated carriers, so as to produce more active species for participating in the photocatalytic reaction. In addition, the surface plasmon resonance (SPR) of appropriate Ag nanoparticles enhanced the absorption and utilization of visible light. Compared with Ag3PO4 and Ag/Ag3PO4, Ag/Ag3PO4/g-C3N4 showed higher photocatalytic activity. Under visible light irradiation, the degradation rate of phenanthrene (PHE) was 0.01756 min-1, which was 3.14 times and 2.38 times that of Ag3PO4 and Ag/Ag3PO4, respectively. After four cycles of photocatalytic reaction, the Ag/Ag3PO4/g-C3N4 photocatalyst still maintained high photocatalytic activity. The active sites of PHE were predicted by Gaussian simulation calculation and combined with intermediate products identification of GC-MS, the possible degradation pathway of PHE was speculated. This research has reference significance for the construction of plasmonic heterojunction photocatalyst in the field of environmental pollution remediation.
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Affiliation(s)
- Yuxuan Dai
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Yuting Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China
| | - Gancheng Zuo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China; School of Environment, Nanjing Normal University, Nanjing, 210023, PR China
| | - Jijie Kong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China; School of Environment, Nanjing Normal University, Nanjing, 210023, PR China
| | - Yang Guo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China; Nanjing Institute of Environmental Science, Ministry of Environmental Protection of China, Nanjing, 210042, PR China
| | - Cheng Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China.
| | - Qiming Xian
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, PR China.
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15
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Sun J, Ma Y, Qin H, Li Z, Pan L. An integrated approach using chemical ecological risk assessment and multi-integrated biomarker indexes approach to assess pollution: A case study of Ruditapes philippinarum in four bays on the Shandong Peninsula in China. ENVIRONMENTAL RESEARCH 2022; 203:111793. [PMID: 34339694 DOI: 10.1016/j.envres.2021.111793] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/25/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Considering the ecological risks of polycyclic aromatic hydrocarbons (PAHs) to the marine environment, it is urgent to find scientific and effective monitoring methods. In this study, an integrated approach combining chemical ecological risk assessment and multi-integrated biomarker indexes approach was used to assess the marine environment. Samples included seawater, sediments, and clam Ruditapes philippinarum were collected from four bays on the Shandong Peninsula, China in the four seasons of 2019. The concentrations, composition, potential sources, and ecological risk of PAHs were investigated in seawater and sediments. Risk quotient (RQ) and sediment quality guidelines (SQGs) were calculated to assess the ecological risks of PAHs in seawater and sediment, respectively. And then, clam Ruditapes philippinarum's multi-level biological response, including its ethoxyresorufin-O-deethylase (EROD), glutathione S-transferase (GST), superoxide dismutase (SOD), lipid peroxidation (LPO), and acetylcholinesterase (AChE) were investigated in-depth, by which multi-integrated biomarker indexes approach were calculated to evaluate marine environmental quality. Taken together, the results showed that the concentration of PAHs was in good agreement with the response of biomarkers, and the usefulness of the combined use of chemical ecological risk assessment and integrated biomarker indexes to assess PAHs pollution was verified.
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Affiliation(s)
- Jiawei Sun
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, 266003, Qingdao, China
| | - Yuanqing Ma
- Shandong Marine Resources and Environment Research Institute, 264006, Yantai, China
| | - Huawei Qin
- Shandong Marine Resources and Environment Research Institute, 264006, Yantai, China
| | - Zeyuan Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, 266003, Qingdao, China
| | - Luqing Pan
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, 266003, Qingdao, China.
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16
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Mattos C, Andrade J, Salarini Peixoto B, Tavares Moraes NL, da Cunha Veloso MC, Alves Romeiro G, Folly EDC. Acaricidal Properties of Bio-Oil Derived From Slow Pyrolysis of Crambe abyssinica Fruit Against the Cattle Tick Rhipicephalus microplus (Acari: Ixodidae). Front Physiol 2021; 12:768522. [PMID: 34925064 PMCID: PMC8674642 DOI: 10.3389/fphys.2021.768522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/29/2021] [Indexed: 11/13/2022] Open
Abstract
Slow pyrolysis is a process for the thermochemical conversion of biomasses into bio-oils that may contain a rich chemical composition with biotechnological potential. Bio-oil produced from crambe fruits was investigated as to their acaricidal effect. Slow pyrolysis of crambe fruits was performed in a batch reactor at 400°C and chemical composition was analyzed by gas chromatography-mass spectrometry (GC-MS). The bio-oil collected was used in bioassays with larvae and engorged females of the cattle tick Rhipicephalus microplus. Biological assays were performed using the larval packet test (LPT) and adult immersion test. The GC-MS of crambe fruit bio-oil revealed mainly hydrocarbons such as alkanes and alkenes, phenols, and aldehydes. The bio-oil in the LPT exhibited an LC90 of 14.4%. In addition, crambe bio-oil caused female mortality of 91.1% at a concentration of 15% and a high egg-laying inhibition. After ovary dissection of treated females, a significant reduction in gonadosomatic index was observed, indicating that bio-oil interfered in tick oogenesis. Considering these results, it may be concluded that slow pyrolysis of crambe fruit affords a sustainable and eco-friendly product for the control of cattle tick R. microplus.
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Affiliation(s)
- Camila Mattos
- Laboratory of Pest and Parasite Studies, Department of Cellular and Molecular Biology, Institute of Biology, Fluminense Federal University, Niterói, Brazil.,Postgraduate Program in Science and Biotechnology, Fluminense Federal University, Niterói, Brazil
| | - Juliana Andrade
- Laboratory of Pest and Parasite Studies, Department of Cellular and Molecular Biology, Institute of Biology, Fluminense Federal University, Niterói, Brazil.,Postgraduate Program in Science and Biotechnology, Fluminense Federal University, Niterói, Brazil
| | - Bruno Salarini Peixoto
- Laboratory of Synthesis, Chromatography, and Environment, Department of Organic Chemistry, Institute of Chemistry, Fluminense Federal University, Niterói, Brazil.,Postgraduate Program in Chemistry, Fluminense Federal University, Niterói, Brazil
| | - Nayara Luiza Tavares Moraes
- Laboratory of Pest and Parasite Studies, Department of Cellular and Molecular Biology, Institute of Biology, Fluminense Federal University, Niterói, Brazil
| | - Marcia Cristina da Cunha Veloso
- Laboratory of Synthesis, Chromatography, and Environment, Department of Organic Chemistry, Institute of Chemistry, Fluminense Federal University, Niterói, Brazil
| | - Gilberto Alves Romeiro
- Laboratory of Synthesis, Chromatography, and Environment, Department of Organic Chemistry, Institute of Chemistry, Fluminense Federal University, Niterói, Brazil.,Postgraduate Program in Chemistry, Fluminense Federal University, Niterói, Brazil
| | - Evelize das Chagas Folly
- Laboratory of Pest and Parasite Studies, Department of Cellular and Molecular Biology, Institute of Biology, Fluminense Federal University, Niterói, Brazil.,Postgraduate Program in Science and Biotechnology, Fluminense Federal University, Niterói, Brazil.,National Institute of Science and Technology, Molecular Entomology, Rio de Janeiro, Brazil
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17
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Tulcan RXS, Ouyang W, Lin C, He M, Wang B. Vanadium pollution and health risks in marine ecosystems: Anthropogenic sources over natural contributions. WATER RESEARCH 2021; 207:117838. [PMID: 34775169 DOI: 10.1016/j.watres.2021.117838] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 10/13/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
Vanadium has been classified as a potentially toxic metal and has been given limited attention in comparison to similar trace metals. Similarly, worldwide and continental vanadium pollution and risks remain contested. Here, we synthesized the worldwide concentration of vanadium in marine ecosystems with the relevant ecological and human health risks. We found that vanadium in biota and seawater collected from Asia shows significant increases over the temporal analysis, with rates similar to those reported for vanadium consumption and production. Furthermore, invertebrates have a higher concentration of vanadium than fishes. Similarly, we demonstrate that sediments classified as polluted have concentrations that are not directly correlated with the highest concentrations across continents. Finally, ecological risks were higher from seawater, with potential impacts to 55% of aquatic species in Asia estimated from chronic species sensitivity distribution (SSD). The concentration endangering only 5% of seawater species (HC5) was estimated as 1.13 (0.05-21.19) μg L-1. Estimated daily intakes revealed that overall, there are none to low health risks from aquatic product consumption, yet high risks are plausible to children with consumption patterns in the 95th percentile.
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Affiliation(s)
- Roberto Xavier Supe Tulcan
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China; Advanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal University, Zhuhai 519087, China
| | - Wei Ouyang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China; Advanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal University, Zhuhai 519087, China.
| | - Chunye Lin
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Mengchang He
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Baodong Wang
- Ministry of Natural Resources, The First Institute of Oceanography, 6 Xianxialing Road, Qingdao 266061, China
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Geochemical Control of PAHs by Inflowing River Water to West Nanao Bay, Japan, and Its Influences on Ecological Risk: Small-Scale Changes Observed under Near-Background Conditions at an Enclosed Bay. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph181910310. [PMID: 34639613 PMCID: PMC8508535 DOI: 10.3390/ijerph181910310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/22/2021] [Accepted: 09/28/2021] [Indexed: 11/22/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), even at low concentrations, have been shown to trigger changes in life cycles and provoke abnormal behaviors in numerous marine organisms. From May 2019 to September 2020, particulate and dissolved PAH concentrations were analyzed on the surface water of West Nanao Bay, Japan, to determinate their levels, emission sources, environmental pathways, and ecological risks at this remote but semi-enclosed bay. The 14 targeted PAHs were analyzed by HPLC-fluorescence detector. Mean total PAH concentrations were lower than 20.0 ng L−1 for most samples. Based on fluoranthene (Flu) to pyrene (Pyr) ([Flu]/[Flu + Pyr]) and benzo[a]anthracene (BaA) to chrysene (Chr) ([BaA]/[BaA + Chr]) isomeric ratios and a varimax rotated PCA, it was established that biomass combustion was the principal source in the particulate phase and that liquid fossil fuel combustion was the principal source in the dissolved phase. From salinity and turbidity distribution, riverine discharges were determined to be the major and continuous transportation pathway of particulate PAHs. It was observed that rain events had a role in the transport of dissolved PAHs. The risk quotients (RQ∑14 PAHs (NCs): 0–84.53) indicated that PAHs represented a very low to low acute environmental risk. The results of this study will contribute to filling the paradigm gap of ecotoxicological studies in remote areas, working as a booster for future in-lab studies of non-lethal implications of endocrine disruptors such as PAHs.
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Ford T, Cherr G, Gu JD. Shu-Pei Cheng: A life-long pursuit for Environmental Science and Pollution Control. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:1284-1286. [PMID: 34145497 DOI: 10.1007/s10646-021-02438-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/01/2021] [Indexed: 06/12/2023]
Affiliation(s)
- Tim Ford
- Department of Biomedical and Nutritional Sciences, University of Massachusetts Lowell, Lowell, MA, 01854, USA.
| | - Gary Cherr
- Bodega Marine Laboratory, Coastal & Marine Sciences Institute, Departments of Environmental Toxicology and Nutrition, University of California, 2099 Westshore Road, Bodega Bay, P.O. Box 247, Davis, CA, 94923, USA.
| | - Ji-Dong Gu
- Environmental Science and Engineering Group, Guangdong Technion-Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, The People's Republic of China.
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20
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Chen Y, Zhang Y, Yu Z, Guan Y, Chen R, Wang C. Early-life phenanthrene exposure inhibits reproductive ability in adult zebrafish and the mechanism of action. CHEMOSPHERE 2021; 272:129635. [PMID: 33486456 DOI: 10.1016/j.chemosphere.2021.129635] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/25/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Phenanthrene (Phe) is a representative polycyclic aromatic hydrocarbon, and its ubiquity makes the risk assessment of Phe in aquatic ecosystems important. To assess the long-term effects of early-life Phe exposure on fish, the embryos of the model organism, zrbrafish (Danio rerio) were exposed to Phe at 0.05, 0.5, 5 and 50 nmol/L for 96 h and then raised to adulthood in clean water. Gonad development and reproductive functions were investigated in 120 day-old fish. The results showed that the percentage of spermatozoa in males and mature oocytes in females were decreased. The spawned egg numbers and the fertilization rate were reduced when the treated fish were mated with untreated fish. The transcription of genes involved in the brain-pituitary-gonadal axis was downregulated. The levels of both 17β-estradiol and testosterone were significantly decreased in the 5 and 50 nmol/L groups compared with the control group. The methylation levels in the promotor of gnrh3 (encoding gonadotropin releasing hormone) were significantly elevated in the adult fish in the 5 and 50 nmol/L treatments, which might be associated with the downregulation of gnrh3 transcription. These results suggested that embryonic exposure to Phe can inhibit the reproductive ability of adult fish, which should be adequately emphasized in its risk assessment.
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Affiliation(s)
- Ying Chen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Ying Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Zhenni Yu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Yue Guan
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Rong Chen
- Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen, Fujian, 361005, China
| | - Chonggang Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China; Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen, Fujian, 361005, China.
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21
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Nematollahi MJ, Dehdaran S, Moore F, Keshavarzi B. Potentially toxic elements and polycyclic aromatic hydrocarbons in street dust of Yazd, a central capital city in Iran: contamination level, source identification, and ecological-health risk assessment. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:485-519. [PMID: 33033901 DOI: 10.1007/s10653-020-00682-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
Contamination level, source, and ecological-health risk of potentially toxic elements (PTEs) and polycyclic aromatic hydrocarbons (PAHs) in the street dust of Yazd, a central capital city in Iran, were investigated for the first time regarding samples collected from 21 sites. Geochemical indices pointed out an enrichment trend of [Formula: see text] and an ecological risk trend of [Formula: see text]. The ecological risk indices of PAHs reflected high ecological risk for pyrene (Pyr). The statistical approach along with the isomeric ratios of PAHs suggested that the traffic-related sources, such as wearing of tires and brake pads, and the vehicular exhaust emissions were greatly responsible for the elevated concentrations of Pb, Cu, Sb, and PAHs, while Al, Ni, Co, V, Mn, As, and, to a lesser extent, Fe, Zn, Mo, and Cr were mainly influenced by geogenic sources. The human health risk assessment of PTEs and PAHs reflected that As, Cr, and Pb pose the highest non-carcinogenic risk in adults and children, compared with other PTEs and also PAHs. The carcinogenic health risk of Pb in the children and PAHs in both subpopulations was high for cancer development.
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Affiliation(s)
| | - Sara Dehdaran
- Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran
| | - Farid Moore
- Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran.
| | - Behnam Keshavarzi
- Department of Earth Sciences, College of Sciences, Shiraz University, Shiraz, Iran
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22
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Wang Y, Liu M, Dai Y, Luo Y, Zhang S. Health and ecotoxicological risk assessment for human and aquatic organism exposure to polycyclic aromatic hydrocarbons in the Baiyangdian Lake. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:574-586. [PMID: 32820436 DOI: 10.1007/s11356-020-10480-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/10/2020] [Indexed: 05/27/2023]
Abstract
Seasonal and regional distributions of 17 polycyclic aromatic hydrocarbons (PAHs) in surface waters from four different main water functional regions of the Baiyangdian Lake were analyzed through GC/MS/MS during spring and summer season. The aim was to identify their possible pollution sources and evaluate their health risk for human and ecotoxicological risk for aquatic organisms. Results showed that the range of total PAH concentration is 35.38-88.06 ng/L (average 46.57 ng/L) in spring and 25.64-301.41 ng/L (average 76.23 ng/L) in summer. PAH contamination was observed slightly lower in the summer season from the pollution characteristics of water bodies in most areas of the Baiyangdian Lake, and the levels of PAH pollution in the water body of urban residential regions and rural residential regions were relatively higher than those in tourist regions and low human disturbance regions. Source analysis based on diagnostic ratios confirmed that combustion sources and petroleum sources were two main sources for PAHs entering into the waters of the Baiyangdian Lake. Human health risk assessment showed that PAHs in surface waters from the Baiyangdian Lake will not cause a potential non-carcinogenic risk to local residents and the carcinogenic risk could mostly be accepted, but the potential lifetime carcinogenic risk for infants in rural residential regions should be concerned about. Urban residential regions and rural residential regions were subject to higher cumulative non-carcinogenic and carcinogenic risk when compared to the other functional regions. Ecotoxicological risk assessment found a moderate risk to aquatic organisms presented by individual PAH and a low risk by total PAHs, and PAHs in the water body of urban residential regions and rural residential regions also have relatively higher harm effects to aquatic organisms compared with the other two functional regions. This study revealed the pollution characteristics of PAHs and their possible sources in waters of the Baiyangdian Lake, clarified its correlation to regional anthropogenic activities, and provided corresponding risk management strategies for human and aquatic organisms.
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Affiliation(s)
- Yizhen Wang
- Monitoring and Scientific Research Center of Ecology and Environment, Supervision and Administration of Ecology and Environment of Haihe River Basin and North China Sea, Ministry of Ecology and Environment of People's Republic of China, Tianjin, 300170, China.
- Key Lab of Basin Water Resource and Eco-Environmental Science in Hubei Province, Wuhan, 430010, China.
| | - Mingzhe Liu
- Supervision and Administration of Ecology and Environment of Haihe River Basin and North China Sea, Ministry of Ecology and Environment of People's Republic of China, Tianjin, 300170, China
| | - Yi Dai
- Supervision and Administration of Ecology and Environment of Haihe River Basin and North China Sea, Ministry of Ecology and Environment of People's Republic of China, Tianjin, 300170, China
| | - Yang Luo
- Supervision and Administration of Ecology and Environment of Haihe River Basin and North China Sea, Ministry of Ecology and Environment of People's Republic of China, Tianjin, 300170, China
| | - Shilu Zhang
- Monitoring and Scientific Research Center of Ecology and Environment, Supervision and Administration of Ecology and Environment of Haihe River Basin and North China Sea, Ministry of Ecology and Environment of People's Republic of China, Tianjin, 300170, China.
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23
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Ogbeide O, Uhunamure G, Okundaye F, Ejeomo C. First report on probabilistic risk assessment of pesticide residues in a riverine ecosystem in South-South Nigeria. CHEMOSPHERE 2019; 231:546-561. [PMID: 31151015 DOI: 10.1016/j.chemosphere.2019.05.105] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/14/2019] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
The present study evaluated the ecological and human health risk associated with concentrations of legacy organochlorine pesticide residues in Ikpoba River, a major River in the heart of Benin City, a Nigerian urban town located in Edo State. Standard methods were used to collect, extract and analyze samples, while risk assessment was carried out using standard models and indices. Results showed varying pesticide concentrations in both sediment and water samples with α-HCH (0.24 ± 0.11 μg L-l), predominant in water, whereas dieldrin (0.99 ± 0.33 μg kg-l) was the highest concentration in sediment. Compared to the Sediment Quality Guidelines (SQGs), this study concentrations of pesticides in sediments were below the values of effect range medium, effect range low, probable effect level and threshold effects level, suggesting low environmental hazard to benthic organisms. However, on exposure to contaminated sediments, probabilistic ecological risk assessment using Monte Carlo techniques showed potential risk to algae, daphnid and fish. Human health risk estimates using dermal and ingestion exposure deterministic and probabilistic routes revealed a potential risk to adults and children exposed to contaminated water and sediment. Estimates for detected pesticides exceeded the threshold level, indicating potential cancer effects for both children and adults who rely on the resources of the river. This study highlights the need for concerted efforts to curb the threat of pesticides and other contaminants in the aquatic environment by all relevant stakeholders in Nigeria and Africa as a whole.
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Affiliation(s)
- Ozekeke Ogbeide
- Department of Zoology and Entomology, University of the Free State. (Qwa Qwa campus), Free State, South Africa; Afromountane Research Unit (ARU) University of the Free State. (Qwa Qwa campus), Free State, South Africa; Department of Environmental Management and Toxicology. Faculty of Life Sciences. University of Benin. Benin City, Nigeria.
| | - Grace Uhunamure
- Department of Environmental Management and Toxicology. Faculty of Life Sciences. University of Benin. Benin City, Nigeria
| | - Fabulous Okundaye
- Department of Environmental Management and Toxicology. Faculty of Life Sciences. University of Benin. Benin City, Nigeria
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24
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Santos FR, Martins DA, Morais PCV, Oliveira AHB, Gama AF, Nascimento RF, Choi-Lima KF, Moreira LB, Abessa DMS, Nelson RK, Reddy CM, Swarthout RF, Cavalcante RM. Influence of anthropogenic activities and risk assessment on protected mangrove forest using traditional and emerging molecular markers (Ceará coast, northeastern Brazil). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 656:877-888. [PMID: 30625674 DOI: 10.1016/j.scitotenv.2018.11.380] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 11/17/2018] [Accepted: 11/25/2018] [Indexed: 06/09/2023]
Abstract
Anthropogenic molecular markers were used to assess chemicals inputs and ecological risks associated from multiple sources to sediments in one of the largest tropical mangrove forests of South America, with a particular focus on lesser studied compounds resulting from rural activities. Total concentrations ranged from 23.4 to 228.2 ng g-1 for polycyclic aromatic hydrocarbons (∑PAHs), 750.4 to 5912.5 ng g-1 for aliphatic hydrocarbons (∑AHs), 32.4 to 696.6 ng g-1 for pesticides (∑pesticides), 23.1 to 2109.7 ng g-1 for coprostanol and sterols (∑sterols), 139.3 to 580.2 ng g-1 for naturals hormones (∑natural hormones) and 334.1 to 823.4 ng g-1 for synthetics hormones (∑synthetic hormones). The PAHs and AHs used as traditional anthropogenic markers showed a mixture between natural and anthropogenic sources, related mainly to inputs from higher plants, phytoplankton and both, biomass and petroleum combustion. Rural activities linked to agricultural pest control are the predominant source of pesticides, although minor inputs from pesticides used in urban public health campaigns and household activities were also detected. Synthetic hormones levels are two to three orders of magnitude greater than natural hormones levels and no correlations were observed between the main sewage markers and synthetic hormone concentrations, rural activities such as animal husbandry, which use drugs in management, may be the predominant anthropogenic sources of these compounds in the region. Traditional markers failed to detect ecological risks in rural areas, where synthetic substances (e.g. pesticides and hormones) are widely used and introduced in the environment.
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Affiliation(s)
- Felipe R Santos
- Instituto Oceanográfico, Universidade de São Paulo, Praça do Oceanográfico, 191, 05508-120 São Paulo, SP, Brazil.
| | - Davi A Martins
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil
| | - Pollyana C V Morais
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil
| | - André H B Oliveira
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Allyne F Gama
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil
| | - Ronaldo F Nascimento
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Katherine F Choi-Lima
- Centro de Investigação em Ecotoxicologia Aquática e Poluição (NEPEA), São Paulo State University (UNESP Campus do Litoral Paulista), Praça Infante Dom Henrique, s/n., CEP 11330-900 São Vicente, SP, Brazil
| | - Lucas Buruaem Moreira
- Centro de Investigação em Ecotoxicologia Aquática e Poluição (NEPEA), São Paulo State University (UNESP Campus do Litoral Paulista), Praça Infante Dom Henrique, s/n., CEP 11330-900 São Vicente, SP, Brazil
| | - Denis M S Abessa
- Centro de Investigação em Ecotoxicologia Aquática e Poluição (NEPEA), São Paulo State University (UNESP Campus do Litoral Paulista), Praça Infante Dom Henrique, s/n., CEP 11330-900 São Vicente, SP, Brazil
| | - Robert K Nelson
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, 266 Woods Hole road, MA 02543, United States of America
| | - Christopher M Reddy
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, 266 Woods Hole road, MA 02543, United States of America
| | - Robert F Swarthout
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, 266 Woods Hole road, MA 02543, United States of America
| | - Rivelino M Cavalcante
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil.
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25
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Bilodeau JC, Gutierrez Villagomez JM, Kimpe LE, Thomas PJ, Pauli BD, Trudeau VL, Blais JM. Toxicokinetics and bioaccumulation of polycyclic aromatic compounds in wood frog tadpoles (Lithobates sylvaticus) exposed to Athabasca oil sands sediment. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 207:217-225. [PMID: 30471987 DOI: 10.1016/j.aquatox.2018.11.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/06/2018] [Accepted: 11/06/2018] [Indexed: 06/09/2023]
Abstract
We performed accumulation-elimination experiments of polycyclic aromatic compounds (PACs) in wood frog tadpoles (Lithobates sylvaticus) using river sediment from Canada's Athabasca oil sands region. The PACs in wood frog tadpoles were ∼2x higher on average when the animals were in direct contact with PAC-contaminated sediment than when they were separated from the sediment with a screen and exposed only to aqueous PACs. These results suggest that sediment exposure/ingestion contributes as much to PAC accumulation in tadpoles as exposure via aqueous pathways. Alkyl-substituted PAC concentrations in exposed tadpoles exceeded those of the unsubstituted (parent) PACs by about 10 × . Bioaccumulation factors ranged between 0.01 and 4.93, with parent PACs having higher bioaccumulation factors than alkylated PACs. Wood frog tadpoles efficiently eliminated and metabolized most parent and alkyl-substituted PACs, though some compounds (e.g., C4-naphthalenes) had higher bioaccumulation potential and may serve as effective markers of exposure. Here we present a comprehensive analysis of the toxicokinetics and bioaccumulation of PACs (52 analytes) in amphibian larvae, and highlight the importance of sediment exposure when considering the bioaccumulation and potential biological impact of PACs in benthic and epibenthic organisms.
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Affiliation(s)
- J C Bilodeau
- Department of Biology, University of Ottawa, 30 Marie Curie Street, Ottawa, Ontario, K1N 6N5, Canada
| | - J M Gutierrez Villagomez
- Department of Biology, University of Ottawa, 30 Marie Curie Street, Ottawa, Ontario, K1N 6N5, Canada
| | - L E Kimpe
- Department of Biology, University of Ottawa, 30 Marie Curie Street, Ottawa, Ontario, K1N 6N5, Canada
| | - P J Thomas
- Environment and Climate Change Canada, National Wildlife Research Center, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - B D Pauli
- Environment and Climate Change Canada, National Wildlife Research Center, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - V L Trudeau
- Department of Biology, University of Ottawa, 30 Marie Curie Street, Ottawa, Ontario, K1N 6N5, Canada
| | - J M Blais
- Department of Biology, University of Ottawa, 30 Marie Curie Street, Ottawa, Ontario, K1N 6N5, Canada.
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26
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Gdara I, Zrafi I, Balducci C, Cecinato A, Ghrabi A. Seasonal occurrence, source evaluation and ecological risk assessment of polycyclic aromatic hydrocarbons in industrial and agricultural effluents discharged in Wadi El Bey (Tunisia). ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2018; 40:1609-1627. [PMID: 29442200 DOI: 10.1007/s10653-018-0075-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 02/01/2018] [Indexed: 06/08/2023]
Abstract
Polycyclic aromatic hydrocarbons are of great concern due to their persistence, bioaccumulation and toxic properties. The occurrence, source and ecological risk assessment of 26 polycyclic aromatic hydrocarbons in industrial and agricultural effluents affecting the Wadi El Bey watershed were investigated by means of gas chromatographic/mass spectrometric analysis (GC/MS). Total PAHs (∑ 26 PAH) ranged from 1.21 to 91.7 µg/L. The 4- and 5-ring compounds were the principal PAHs detected in most of 5 sites examined. Diagnostic concentration ratios and molecular indices were performed to identify the PAH sources. Results show that PAHs could originate from petrogenic, pyrolytic and mixed sources. According to the ecotoxicological assessment, the potential risk associated with PAHs affecting agricultural and industrial effluents ranged from moderate to high for both aquatic ecosystem and human health. The toxic equivalency factor (TEF) approach indicated that benzo[a]pyrene and benz[a]anthracene were the principal responsible for carcinogenic power of samples.
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Affiliation(s)
- Imen Gdara
- Water Researches and Technologies Center Borj-Cedria Technopark, BP. 273, 8020, Soliman, Tunisia.
- Faculty of Science of Bizerte, 7021, Zarzouna, Bizerte, Tunisia.
| | - Ines Zrafi
- Water Researches and Technologies Center Borj-Cedria Technopark, BP. 273, 8020, Soliman, Tunisia
| | - Catia Balducci
- National Research Council of Italy, Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria km 29.3, P.O. box 10, 00015, Monterotondo, Rome, Italy
| | - Angelo Cecinato
- National Research Council of Italy, Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria km 29.3, P.O. box 10, 00015, Monterotondo, Rome, Italy
| | - Ahmed Ghrabi
- Water Researches and Technologies Center Borj-Cedria Technopark, BP. 273, 8020, Soliman, Tunisia
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27
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Loughery JR, Kidd KA, Mercer A, Martyniuk CJ. Part A: Temporal and dose-dependent transcriptional responses in the liver of fathead minnows following short term exposure to the polycyclic aromatic hydrocarbon phenanthrene. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 199:90-102. [PMID: 29621674 DOI: 10.1016/j.aquatox.2018.03.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/21/2018] [Accepted: 03/21/2018] [Indexed: 06/08/2023]
Abstract
Phenanthrene is a low molecular weight polycyclic aromatic hydrocarbon (PAH) that is composed of three fused benzene rings. PAHs are formed naturally through incomplete combustion of organic materials, and are environmental contaminants due to anthropogenic activities (e.g. oil extraction and refining, industrial and municipal effluents, fossil fuel burning). Fish exposed to PAHs such as phenanthrene have been reported to exhibit altered reproductive axis endpoints, however the mechanisms that underlie these responses are not fully characterized. To better understand effects at the mechanistic level, we applied transcriptomics to identify molecular pathways altered after acute exposure to phenanthrene on both a dose and temporal scale. Female fathead minnow (Pimephales promelas) were exposed to an average measured concentration of either 0, 29.8, 389 or 943 μg phenanthrene/L for 24, 48, and 72 h in a static-renewal bioassay. Ovaries were assessed for oocyte distribution as well as in vitro 17β-estradiol production and gene expression for transcripts related to steroidogenesis and estrogen signalling. In addition, the liver transcriptome was measured as this tissue is the primary source of the egg yolk precursor protein vitellogenin. Exposure to 29.8 μg phenanthrene/L increased proportions of the cortical alveolar stage in the ovaries after 48 h while the proportion of cortical alveolar oocyte were decreased in fish exposed to 943 μg phenanthrene/L for 48 h. Phenanthrene did not affect 17β-estradiol production at any time or dose, and did not affect transcripts associated with hormone synthesis nor signalling pathways. In the liver, the transcriptome showed fewer genes in common across time when compared to those transcripts affected by concentration at a single time point. Cholesterol metabolism was the only pathway perturbed in the liver following all comparisons in both the dose and time course experiments. Our data suggest that transcriptome networks associated with hepatic lipid metabolism are rapidly affected by phenanthrene, and this may indirectly reduce resources available for reproductive efforts.
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Affiliation(s)
- Jennifer R Loughery
- Department of Biological Sciences and Canadian Rivers Institute, University of New Brunswick, Saint John, NB, E2L 4L5, Canada
| | - Karen A Kidd
- Department of Biological Sciences and Canadian Rivers Institute, University of New Brunswick, Saint John, NB, E2L 4L5, Canada
| | - Angella Mercer
- Department of Biological Sciences and Canadian Rivers Institute, University of New Brunswick, Saint John, NB, E2L 4L5, Canada
| | - Christopher J Martyniuk
- Department of Biological Sciences and Canadian Rivers Institute, University of New Brunswick, Saint John, NB, E2L 4L5, Canada.
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28
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Pheiffer W, Quinn LP, Bouwman H, Smit NJ, Pieters R. Polycyclic aromatic hydrocarbons (PAHs) in sediments from a typical urban impacted river: application of a comprehensive risk assessment. ECOTOXICOLOGY (LONDON, ENGLAND) 2018; 27:336-351. [PMID: 29404865 DOI: 10.1007/s10646-018-1898-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/12/2018] [Indexed: 06/07/2023]
Abstract
Soweto and Lenasia, the most densely populated area of South Africa, is simultaneously a thriving metropolis, with a fair share of people still living in squalor conditions directly dependant on the natural resources. Because of industrialisation the populace and environment in this urban area are exposed to various pollutants. The aquatic environment was selected as a proxy to study the effect of industrial pollution in this area. The concentrations, source identification, and various environmental risks of polycyclic aromatic hydrocarbons (PAHs) were determined in sediments of the upper reaches of the Klip River. Composite sediment samples collected in low-flow conditions in 2013 and 2014 ranged from 270-5400 ng/g. The PAHs in this aquatic ecosystem were dominated by 4-ring congeners and could be attributed to combustion of organic fuels by chemical mass balance. Heavy traffic and industrial complexes in the northern part of the study area were responsible for the PAH fingerprints. Probable adverse effects such as toxicity to benthic biota were proven after comparison with international sediment quality guidelines (SQG) both survey years. Toxic equivalence quotients (TEQs) calculated for the sediments using fish potency factors (FPFs) were up to 30 times greater than the Canadian guideline for dioxin-like compounds, indicating high probability of carcinogenic effect to fish mediated through the aryl-hydrocarbon receptor. Finally, sediments in the area posed moderate to high ecological risk, which corroborates the other toxicity assessments. The advantage of investigating multiple risk endpoints, is the comprehensive results obtained that allows for a more realistic representation of the study area. Consequently more aspects are kept into account that results in better conclusions.
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Affiliation(s)
- Wihan Pheiffer
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
| | - Laura P Quinn
- National Metrology Institute of South Africa, Pretoria, South Africa
| | - Hindrik Bouwman
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Nico J Smit
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Rialet Pieters
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
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29
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Hu J, Liu C, Guo Q, Yang J, Okoli CP, Lang Y, Zhao Z, Li S, Liu B, Song G. Characteristics, source, and potential ecological risk assessment of polycyclic aromatic hydrocarbons (PAHs) in the Songhua River Basin, Northeast China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:17090-17102. [PMID: 28585008 DOI: 10.1007/s11356-017-9057-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 04/18/2017] [Indexed: 06/07/2023]
Abstract
The concentration characteristics, sources, and potential ecological risk assessment of 16 PAHs were investigated in the surface water from the Songhua River Basin, Northeast China. A total of 48 river water samples, including 16 from the main streams and 32 from the tributaries, were collected. Samples were separated into dissolved phases and suspended particle matter (SPM) via filtration with 0.47 μm glass fiber filters. Each phase was analyzed for PAHs. The total PAH concentration in the dissolved phase in the water ranged from 32.5 to 108 ng L-1 and from 0.3 to 62.3 μg g-1 (dry weight) in the suspended particle matter (SPM). The total PAH concentration in the main stream was lower than in the tributaries; the volume of annual runoff of rivers had a significant effect on the ƩPAH in the rivers. The 2- and 3-ring PAHs dominated in both the dissolved phase and SPM, indicating a relatively recent local source of PAHs in the study area. The concentrations of PAHs in the Songhua River Basin are lower when compared with the values previously reported in the literature from other rivers around the world. The sources of PAHs were assessed by diagnostic ratios and principal component analysis (PCA), and the ecological risk of the PAHs was assessed based on the risk quotient (RQ). The diagnostic ratios and PCA indicated that the main sources of PAHs originated from pyrogenic and petrogenic sources, and pyrogenic sources had a greater impact. The ecological risk assessment indicated that the PAHs presented low ecosystem risk in the Songhua River Basin.
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Affiliation(s)
- Jian Hu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Congqiang Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
- Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, Beijing, 100101, China.
| | - Qingjun Guo
- Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, Beijing, 100101, China.
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Junxin Yang
- Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Chaoyang District, Beijing, 100101, China
| | - Chukwunonso Peter Okoli
- Department of Chemistry, Federal University Ndufu-Alike Ikwo, Ndufu-Alike Ikwo, Ebonyi State, Nigeria
| | - Yunchao Lang
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China
| | - Zhiqi Zhao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Siliang Li
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China
| | - Baojian Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Guangwei Song
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
- University of Chinese Academy of Sciences, Beijing, 100039, China
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Wang Y, Wang J, Mu J, Wang Z, Cong Y, Yao Z, Lin Z. Aquatic predicted no-effect concentrations of 16 polycyclic aromatic hydrocarbons and their ecological risks in surface seawater of Liaodong Bay, China. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:1587-1593. [PMID: 26517571 DOI: 10.1002/etc.3295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 07/13/2015] [Accepted: 10/27/2015] [Indexed: 06/05/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), a class of ubiquitous pollutants in marine environments, exhibit moderate to high adverse effects on aquatic organisms and humans. However, the lack of PAH toxicity data for aquatic organism has limited evaluation of their ecological risks. In the present study, aquatic predicted no-effect concentrations (PNECs) of 16 priority PAHs were derived based on species sensitivity distribution models, and their probabilistic ecological risks in seawater of Liaodong Bay, Bohai Sea, China, were assessed. A quantitative structure-activity relationship method was adopted to achieve the predicted chronic toxicity data for the PNEC derivation. Good agreement for aquatic PNECs of 8 PAHs based on predicted and experimental chronic toxicity data was observed (R(2) = 0.746), and the calculated PNECs ranged from 0.011 µg/L to 205.3 µg/L. A significant log-linear relationship also existed between the octanol-water partition coefficient and PNECs derived from experimental toxicity data (R(2) = 0.757). A similar order of ecological risks for the 16 PAH species in seawater of Liaodong Bay was found by probabilistic risk quotient and joint probability curve methods. The individual high ecological risk of benzo[a]pyrene, benzo[b]fluoranthene, and benz[a]anthracene needs to be determined. The combined ecological risk of PAHs in seawater of Liaodong Bay calculated by the joint probability curve method was 13.9%, indicating a high risk as a result of co-exposure to PAHs. Environ Toxicol Chem 2016;35:1587-1593. © 2015 SETAC.
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Affiliation(s)
- Ying Wang
- Key Laboratory for Ecological Environment in Coastal Areas, National Marine Environmental Monitoring Center, Dalian, China
| | - Juying Wang
- Key Laboratory for Ecological Environment in Coastal Areas, National Marine Environmental Monitoring Center, Dalian, China
| | - Jingli Mu
- Key Laboratory for Ecological Environment in Coastal Areas, National Marine Environmental Monitoring Center, Dalian, China
| | - Zhen Wang
- Key Laboratory for Ecological Environment in Coastal Areas, National Marine Environmental Monitoring Center, Dalian, China
| | - Yi Cong
- Key Laboratory for Ecological Environment in Coastal Areas, National Marine Environmental Monitoring Center, Dalian, China
| | - Ziwei Yao
- Key Laboratory for Ecological Environment in Coastal Areas, National Marine Environmental Monitoring Center, Dalian, China
| | - Zhongsheng Lin
- Key Laboratory for Ecological Environment in Coastal Areas, National Marine Environmental Monitoring Center, Dalian, China
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Dudhagara DR, Rajpara RK, Bhatt JK, Gosai HB, Sachaniya BK, Dave BP. Distribution, sources and ecological risk assessment of PAHs in historically contaminated surface sediments at Bhavnagar coast, Gujarat, India. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 213:338-346. [PMID: 26925756 DOI: 10.1016/j.envpol.2016.02.030] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 01/31/2016] [Accepted: 02/16/2016] [Indexed: 05/27/2023]
Abstract
The concentration, distribution and ecological risk of polycyclic aromatic hydrocarbons (PAHs) have been investigated in surface sediments near Bhavnagar coast. The concentration of ∑PAHs ranged from 5.02 to 981.18 μg g(-1) dry weight, indicating heavy pollution compared to other historically polluted study sites. It was found to be introduced via mixed origins such as burning of gas, oil, coal, production of petrochemicals, cement, and rubber tires. Domestic fuel burning and motor vehicles are also culprits for air pollution. Industrial effluents and accidental oil spillage can also be considered. PAHs can be exposed through air, water, soil and food sources including ingestion, inhalation, and dermal content in both occupational and non-occupational levels by single or sometimes multiple exposures routes concomitantly. Furthermore, diagnostic ratios, statistical principal component analysis (PCA) and hierarchical cluster analysis (HCA) models have confirmed that the sources of PAHs were both - petrogenic and pyrogenic. For both the sites, assessment of ecological risk of the elevated levels of these pollutants has been exercised based on toxic equivalency factors (TEFs) and risk quotient (RQ) methods. The composite results indicated accurately that both the sites, bears potentially acute and chronic health hazards such as decreased immune functionality, genotoxicity, malignancy and developmental malfunctions in humans. The sites studied here and the workers have been exposed to hazardous pollutants for a longer period of time. Evidences indicate that mixtures of PAHs are carcinogenic to humans, based on occupational studies on workers, exposed to these pollutants. Hence, the present study and statistical approaches applied herein clearly indicate the historic mix routes of PAHs that resulted in magnified concentrations leading to high ecosystem risk. Thus, the scientific communities are urged to develop strategies to minimize the concentrations of PAHs from the historically impacted coastlines, thereby concerning for the future investigations and restoration of these sites.
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Affiliation(s)
- Dushyant R Dudhagara
- Department of Life Sciences, Sardar Vallabhbhai Patel Campus, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, 364001, Gujarat, India
| | - Rahul K Rajpara
- Department of Life Sciences, Sardar Vallabhbhai Patel Campus, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, 364001, Gujarat, India
| | - Jwalant K Bhatt
- Department of Life Sciences, Sardar Vallabhbhai Patel Campus, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, 364001, Gujarat, India
| | - Haren B Gosai
- Department of Life Sciences, Sardar Vallabhbhai Patel Campus, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, 364001, Gujarat, India
| | - Bhumi K Sachaniya
- Department of Life Sciences, Sardar Vallabhbhai Patel Campus, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, 364001, Gujarat, India
| | - Bharti P Dave
- Department of Life Sciences, Sardar Vallabhbhai Patel Campus, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar, 364001, Gujarat, India.
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Di Giulio RT, Clark BW. The Elizabeth River Story: A Case Study in Evolutionary Toxicology. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2015; 18:259-98. [PMID: 26505693 PMCID: PMC4733656 DOI: 10.1080/15320383.2015.1074841] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The Elizabeth River system is an estuary in southeastern Virginia, surrounded by the towns of Chesapeake, Norfolk, Portsmouth, and Virginia Beach. The river has played important roles in U.S. history and has been the location of various military and industrial activities. These activities have been the source of chemical contamination in this aquatic system. Important industries, until the 1990s, included wood treatment plants that used creosote, an oil-derived product that is rich in polycyclic aromatic hydrocarbons (PAH). These plants left a legacy of PAH pollution in the river, and in particular Atlantic Wood Industries is a designated Superfund site now undergoing remediation. Numerous studies examined the distribution of PAH in the river and impacts on resident fauna. This review focuses on how a small estuarine fish with a limited home range, Fundulus heteroclitus (Atlantic killifish or mummichog), has responded to this pollution. While in certain areas of the river this species has clearly been impacted, as evidenced by elevated rates of liver cancer, some subpopulations, notably the one associated with the Atlantic Wood Industries site, displayed a remarkable ability to resist the marked effects PAH have on the embryonic development of fish. This review provides evidence of how pollutants have acted as evolutionary agents, causing changes in ecosystems potentially lasting longer than the pollutants themselves. Mechanisms underlying this evolved resistance, as well as mechanisms underlying the effects of PAH on embryonic development, are also described. The review concludes with a description of ongoing and promising efforts to restore this historic American river.
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Affiliation(s)
- Richard T. Di Giulio
- Nicholas School of the Environment, Duke University, Durham, North Carolina, USA
- Address correspondence to Richard T. Di Giulio, Nicholas School of the Environment, Duke University, Durham, NC27708-0328, USA. E-mail:
| | - Bryan W. Clark
- U.S. Environmental Protection Agency, Atlantic Ecology Division, National Health & Environmental Effects Research Laboratory, Office of Research and Development, Narragansett, Rhode Island, USA
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Zhang N, Zang S, Sun Q. Health risk assessment of heavy metals in the water environment of Zhalong Wetland, China. ECOTOXICOLOGY (LONDON, ENGLAND) 2014; 23:518-526. [PMID: 24414855 DOI: 10.1007/s10646-014-1183-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/03/2014] [Indexed: 06/03/2023]
Abstract
Concentrations of the Cu, Cd, Cr, As, Zn and Ni in water samples from 272 sampling stations in the water environment of Zhalong Wetland, China were studied. Health risk assessment associated with six heavy metals and metalloid was conducted using health risk assessment model from United States Environmental Protection Agency. It can be concluded that the mean concentrations of Cu, Ni, Zn, As, Cd and Cu were 0.19, 0.45, 0.52, 4.9, 0.12 and 0.24 μg L(-1), respectively. The carcinogenic risk of Cr, As and Cd in the discharged area, experimental area, buffer area and core area were lower than the maximum allowance risk level recommended by International Commission on Radiological Protection (ICRP 5.0 × 10(-5) a(-1)). The non-carcinogenic risks (Cu, Zn, Ni) was also lower than the maximum allowance levels recommended by ICRP. Though it was lower than the level, it was very approaching to maximum acceptable risk level, need to draw attention to the relevant departments.
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Affiliation(s)
- Nannan Zhang
- Key Laboratory of Remote Sensing Monitoring of Geographic Environment, College of Heilongjiang Province, Harbin Normal University, No. 1 South Shida Road, Limin Economic Development Zone, Harbin, 150025, Heilongjiang, People's Republic of China
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Zeng L, Zeng S, Dong X, Zhang T, Chen J. Probabilistic ecological risk assessment of polycyclic aromatic hydrocarbons in southwestern catchments of the Bohai Sea, China. ECOTOXICOLOGY (LONDON, ENGLAND) 2013; 22:1221-1231. [PMID: 23943210 DOI: 10.1007/s10646-013-1110-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/30/2013] [Indexed: 06/02/2023]
Abstract
A probability risk assessment was undertaken to study the individual and combined ecological risks induced by six polycyclic aromatic hydrocarbons (PAHs) both in surface water and sediment from southwestern catchments of the Bohai Sea, China. The actual measured PAH concentrations in water and sediment were compared with toxicity effect data (the 10th percentile of predicted no effect concentration) to calculate the risk quotients (RQs) for an individual PAH. The equilibrium partitioning method was applied to estimate toxicity data in sediment. A method based on the equivalent concentration concept was proposed and applied to assess the combined ecological risk of multiple PAHs. Monte Carlo simulation and bootstrap technique were utilized to calculate the distribution of RQs and associated uncertainties. The ecological safety level was defined by RQ ≤ 1. Results indicated that both in water and sediment, fluoranthene and pyrene posed the highest risks, whereas acenaphthene and fluorene posed negligible risks. Naphthalene and phenanthrene did not pose risks to the ecological community in surface water but had relatively higher risks in sediment. The median RQs of combined risk in surface water and sediment were 0.934 and 2.42, and the probabilities of RQ > 1 were up to 0.473 and 0.599, respectively, which were much higher than the individual compound acting alone. The risk level in sediment was quite higher than in surface water probably owing to the non-equilibrium distribution between two phases, which suggested that local authorities should focus more on sediment quality management.
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Affiliation(s)
- Lin Zeng
- School of Environment, Tsinghua University, Beijing, 100084, China,
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35
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Pollution characteristics and ecological risk of polycyclic aromatic hydrocarbons (PAHs) in surface sediments of the southern part of the Haihe River system in China. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s11434-013-5677-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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36
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Ru QM, Feng Q, He JZ. Risk assessment of heavy metals in honey consumed in Zhejiang province, southeastern China. Food Chem Toxicol 2012; 53:256-62. [PMID: 23261649 DOI: 10.1016/j.fct.2012.12.015] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Revised: 11/28/2012] [Accepted: 12/09/2012] [Indexed: 11/15/2022]
Abstract
The levels of copper (Cu), zinc (Zn), cadmium (Cd), lead (Pb), arsenic (As), and mercury (Hg) in eight types of honey collected in China were determined. The average concentrations of the six heavy metals in the honey samples were 46.18, 1329.5, 1.34, 33.98, 13.44, and 1.65 μg kg(-1), respectively. All these values were below the maximum allowable contaminant levels in foods (GB2762-2005) and honey (GB14963-2011) in China. The hazard quotients of individual heavy metals and the hazard index of all six heavy metals were far below one, indicating no chronic-toxic risk from these metals for the inhabitants of Zhejiang under the current consumption rates of honey. However, the carcinogenic risk of As for the female inhabitants in Zhejiang exceeded the acceptable level of 10(-4). Therefore, As is the most concerning heavy metal in honey.
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Affiliation(s)
- Qiao-Mei Ru
- College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China
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Zhang ZX, Zhu YX, Li CM, Zhang Y. Investigation into the causes for the changed biodegradation process of dissolved pyrene after addition of hydroxypropyl-β-cyclodextrin (HPCD). JOURNAL OF HAZARDOUS MATERIALS 2012; 243:139-145. [PMID: 23107290 DOI: 10.1016/j.jhazmat.2012.10.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 10/04/2012] [Accepted: 10/05/2012] [Indexed: 06/01/2023]
Abstract
Bioremediation of surface waters contaminated with polycyclic aromatic hydrocarbons (PAHs) is a serious problem, often limited by the low bioavailability of contaminants as a result of their low aqueous solubility. In this study, we studied the influence of hydroxypropyl-β-cyclodextrin (HPCD) addition on the biodegradation of dissolved pyrene in aqueous solution. Five types of unidentified bacterial strains were used with a concentration of pyrene under its solubility limit. The reduction of pyrene content was monitored during the biodegradation process using synchronous fluorimetry. The presence of HPCD changed the rate of pyrene biodegradation by microorganisms due to the formation of an inclusion complex between pyrene and HPCD. The hydrophobicity and the emulsifying activity of microorganisms relative to their biodegrading capacity were investigated. The results indicated that hydrophobicity and emulsifying activity of the microorganisms were important factors that can influence the biodegradation process. The hydrophobicity and emulsifying activity were strongly correlated with the biodegrading capacity of the microorganisms toward pyrene in the presence of solubilizing agents or organized media.
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Affiliation(s)
- Zhen-Xuan Zhang
- State Key Laboratory of Marine Environmental Science (Xiamen University), College of the Environmental and Ecology, Xiamen University, Xiamen 361005, PR China
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Pollution characteristics, ecological risk and sources of polycyclic aromatic hydrocarbons (PAHs) in surface sediment from Tuhai-Majia River system, China. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.proenv.2012.01.123] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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