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Zelalem W, Anteneh W, Mingist M, Kibret M, Adgo E, Erarto F, De Rop J, De Cock A, Spanoghe P, Goethals PLM, Nyssen J, Verleyen E, De Vocht A. Pesticide concentration in three selected fish species and human health risk in the Lake Tana sub-basin, Ethiopia. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:988. [PMID: 37490187 DOI: 10.1007/s10661-023-11594-y] [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: 03/08/2023] [Accepted: 07/10/2023] [Indexed: 07/26/2023]
Abstract
Pesticide use has increased in the Lake Tana sub-basin due to increased agricultural activity, potentially endangering nontargeted organisms. To assess its potential impact on fish health and fish-consuming human populations, pesticide concentrations in the fillet and liver tissue of three fish species, namely Labeobarbus megastoma, Labeobarbus tsanensis, and Oreochromis niloticus, were investigated in Lake Tana. Fish samples were taken from the lake near the rivers of Ribb and Gumara, which flow through agricultural areas where considerable amounts of pesticides have been applied. A total of 96 fish samples were collected. Liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) revealed the presence of ten pesticides. Pyrimethanil was frequently detected in 96% of liver and 65% of fillet samples at a median concentration of 33.9 µg kg-1 and 19.7 µg kg-1, respectively. The highest concentration of pyrimethanil was found in L. megastoma (1850.0 µg kg-1). Labeobarbus megastoma also had the highest concentration of oxamyl (507.0 µg kg-1) and flazasulfuron (60.1 µg kg-1) detected in the liver tissue. The highest concentration of carbaryl (56.5 µg kg-1) was found in the liver tissue of O. niloticus. Fish tissue samples from the two study sites contained pyrimethanil, oxamyl, carbaryl, and flazasulfuron. Only pyrimethanil showed a statistically significant difference between the two sites and the species L. megastoma and L. tsanensis. The amounts of pesticides found in the fish species pose no direct risk to the health of fish consumer human population. However, the results show that the lake ecosystem needs immediate attention and regular monitoring of the rising pesticide usage in the lake watershed.
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Affiliation(s)
- Wondie Zelalem
- UHasselt, Centre for Environmental Sciences, 3590, Diepenbeek, Agoralaan, Belgium.
- Department of Fisheries and Aquatic Sciences, Bahir Dar University, Bahir Dar, Ethiopia.
| | - Wassie Anteneh
- Intergovernmental Authority On Development (IGAD), Djibouti, Djibouti
| | - Minwyelet Mingist
- Department of Fisheries and Aquatic Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Mulugeta Kibret
- Department of Biology, Bahir Dar University, Bahir Dar, Ethiopia
| | - Enyew Adgo
- Department of Natural Resource Management, Bahir Dar University, Bahir Dar, Ethiopia
| | - Felegush Erarto
- Department of Fisheries and Aquatic Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Jasmine De Rop
- Department of Plants and Crops, Ghent University, Ghent, Belgium
| | - Andrée De Cock
- Department of Animal Sciences and Aquatic Ecology, Ghent University, Ghent, Belgium
| | - Pieter Spanoghe
- Department of Plants and Crops, Ghent University, Ghent, Belgium
| | - Peter L M Goethals
- Department of Animal Sciences and Aquatic Ecology, Ghent University, Ghent, Belgium
| | - Jan Nyssen
- Department of Geography, Ghent University, Ghent, Belgium
| | - Elie Verleyen
- Department of Biology, Ghent University, Ghent, Belgium
| | - Alain De Vocht
- UHasselt, Centre for Environmental Sciences, 3590, Diepenbeek, Agoralaan, Belgium
- PXL University College, Hasselt, Belgium
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Munschy C, Bely N, Héas-Moisan K, Olivier N, Pollono C, Govinden R, Bodin N. Species-specific bioaccumulation of persistent organohalogen contaminants in a tropical marine ecosystem (Seychelles, western Indian Ocean). CHEMOSPHERE 2023; 336:139307. [PMID: 37354954 DOI: 10.1016/j.chemosphere.2023.139307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 06/26/2023]
Affiliation(s)
- C Munschy
- Ifremer, CCEM Contamination Chimique des Ecosystèmes Marins, F-44000, Nantes, France.
| | - N Bely
- Ifremer, CCEM Contamination Chimique des Ecosystèmes Marins, F-44000, Nantes, France
| | - K Héas-Moisan
- Ifremer, CCEM Contamination Chimique des Ecosystèmes Marins, F-44000, Nantes, France
| | - N Olivier
- Ifremer, CCEM Contamination Chimique des Ecosystèmes Marins, F-44000, Nantes, France
| | - C Pollono
- Ifremer, CCEM Contamination Chimique des Ecosystèmes Marins, F-44000, Nantes, France
| | - R Govinden
- SFA (Seychelles Fishing Authority), Fishing Port, Victoria, Mahé, Seychelles
| | - N Bodin
- SFA (Seychelles Fishing Authority), Fishing Port, Victoria, Mahé, Seychelles; Institute for Research and Development (IRD), Fishing Port, Victoria, Mahé, Seychelles; Sustainable Ocean Seychelles (SOS), BeauBelle, Mahé, Seychelles
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Tison L, Franc C, Burkart L, Jactel H, Monceau K, de Revel G, Thiéry D. Pesticide contamination in an intensive insect predator of honey bees. ENVIRONMENT INTERNATIONAL 2023; 176:107975. [PMID: 37216836 DOI: 10.1016/j.envint.2023.107975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/12/2023] [Accepted: 05/10/2023] [Indexed: 05/24/2023]
Abstract
Pesticides used for plant protection can indirectly affect target and non-target organisms and are identified as a major cause of insect decline. Depending on species interactions, pesticides can be transferred into the environment from plants to preys and predators. While the transfer of pesticides is often studied through vertebrate and aquatic exposure, arthropod predators of insects may represent valuable bioindicators of environmental exposure to pesticides. A modified QuEChERS extraction coupled with HPLC-MS/MS analysis was used to address the question of the exposure to pesticides of the invasive hornet Vespa velutina, a specialist predator of honey bees. This analytical method allows the accurate quantification of nanogram/gram levels of 42 contaminants in a sample weight that can be obtained from single individuals. Pesticide residues were analyzed in female workers from 24 different hornet nests and 13 different pesticides and 1 synergist, piperonyl butoxide, were identified and quantified. In 75 % of the explored nests, we found at least one compound and in 53 % of the positive samples we could quantify residues ranging from 0.5 to 19.5 ng.g-1. In this study, hornets from nests located in sub-urban environments were the most contaminated. Pesticide residue analysis in small and easy to collect predatory insects opens new perspectives for the study of environmental contamination and the transfer of pesticides in terrestrial trophic chains.
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Affiliation(s)
- Léa Tison
- INRAE, UMR1065 SAVE, 33140 Villenave d'Ornon, France.
| | - Céline Franc
- Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Sciences Agro, UMR 1366, OENO, ISVV, 33140 Villenave d'Ornon, France
| | | | | | - Karine Monceau
- Univ. La Rochelle CEBC, UMR CNRS 7372, 79360 Villiers-en-Bois, France
| | - Gilles de Revel
- Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Sciences Agro, UMR 1366, OENO, ISVV, 33140 Villenave d'Ornon, France
| | - Denis Thiéry
- INRAE, UMR1065 SAVE, 33140 Villenave d'Ornon, France
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Pérez-Vegas A, Pérez-López M, Barcala E, Romero D, Muñoz P. Organochlorine residues in muscle of European eels (Anguilla anguilla) from four Spanish Mediterranean wetlands and coastal lagoons. MARINE POLLUTION BULLETIN 2023; 186:114408. [PMID: 36521362 DOI: 10.1016/j.marpolbul.2022.114408] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 11/14/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
European eels (Anguilla anguilla) are an endangered species throughout their range, and chlorine organic compounds are some of the most important pollutants for marine species. Data on contaminants in eel stocks remain incomplete, so organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in muscle of European eels from four Spanish Mediterranean ecosystems were analyzed. COPs are presents in eels from all areas, but some compounds are not detected: HCH α, β and γ (lindane), endosulfan sulfate, heptachlor, and PCBs 28, 52 and 180. The high percentage of DDT 2,4' in eels from S'Albufera des Grau Natural Park, an ecosystem with good ecological status according to the Water Framework Directive, and the presence of PCBs in S'Albufereta Natural Reserve indicate the need to carry out further studies in the future. The results obtained can improve the management of this species in the studied areas.
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Affiliation(s)
- Alonso Pérez-Vegas
- Department of Animal Health, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain
| | - Marcos Pérez-López
- Toxicology Unit, Veterinary School, Avda. de la Universidad s/n, 10003 Cáceres, Spain
| | - Elena Barcala
- Centro Nacional Instituto Español de Oceanografía, Centro Oceanográfico de Murcia, CSIC, C/Varadero, s/n, 30740 San Pedro del Pinatar, Spain
| | - Diego Romero
- Toxicology Department, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain.
| | - Pilar Muñoz
- Department of Animal Health, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain
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Organochlorine pesticides and polychlorinated biphenyls in carnivorous waterbird species from Lake Ziway, Ethiopia. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-05215-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Abstract
This study presents the assessment of bioaccumulation and reproductive health risk associated with organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) exposure in carnivorous waterbird species. We investigated OCPs and PCBs exposure in muscle tissues of 4 species of carnivorous waterbird species from Lake Ziway, Ethiopia. The influences of trophic position and size on accumulation of organochlorine pollutants are investigated. The result shows that Dichloro-diphenyl-trichloroethanes (DDTs), Endosulfan and PCBs are detected. DDTs constitute the dominant contaminant among OCPs investigated. Trophic position and wing chord length are positively associated with levels of ∑DDTs. Mean levels of ∑DDTs and ∑PCBs vary from 143.9 to 1051.1 ng g−1 wet weight (ww) and not detected (ND)—3.5 ng g−1 ww, respectively. Mean levels of 4,4′-dichloro-diphenyl-dichloro-ethylene (p,p′-DDE), and 4,4′-dichloro-diphenyl-dichloro-ethane (p,p′-DDD) are significantly varied among the bird species. p,p′-DDE contribute 92.3–98.6% of total DDTs. About 26.7% of birds show p,p′-DDE levels above the minimum threshold to cause reproductive failures in birds. Generally, the findings of this study shows that DDT exposure in high trophic levels bird species from Lake Ziway could result in reproductive health risk. The present study may serve as a baseline for future comprehensive exposure and risk assessment studies.
Article Highlights
p,p’-DDE is the dominant contaminant in muscle tissue of the investigated bird species
DDT accumulation varies among the bird species investigated
A quarter of the investigated birds are at risk of reproductive failure as a result of high p,p’-DDE levels
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Ayele S, Mamo Y, Deribe E, Eklo OM. Organochlorine pesticides and polychlorinated biphenyls in carnivorous waterbird and fish species from Lake Hawassa, Ethiopia. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-05177-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Abstract
Abstract
Abstract
Agricultural, vector-control and industrial activities around Lake Hawassa pose a risk of organochlorine contamination of the lake biota. To assess organochlorine contamination, we measured levels of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in 3 species of carnivorous waterbird and 3 species of fish. A total of 50 samples of fish and bird species sampled from Lake Hawassa in 2019. We investigated factors influencing accumulation of OCPs and PCBs. Reproductive risk associated with tissue levels of 4,4’-dichloro-diphenyl-dichloro-ethylene (p,p’-DDE) is also estimated. Results show that dichloro-diphenyl-trichloroethane (DDT) is the dominant contaminant found in both bird and fish species. p,p’-DDE is the dominant DDT metabolite in both bird and fish species. Geometric mean of p,p’-DDE varied from 49.8–375.3 and 2.2–7.7 ng g−1 ww in birds and fish, respectively. Average p,p’-DDE level in birds is 33.3 times higher than in fish. p,p’-DDE constitutes 93.4–95.2% of total DDTs in bird species. Degree of exposure, chemical stability, and resistance to environmental and biological degradation could explain higher levels of p,p’-DDE both in bird and fish species. There is significant variation in p,p’-DDE levels among bird and fish species owing to differences in feeding habits, foraging habitat, and lipid content. An increase in DDT levels with increasing size is observed in both bird and fish species. A significant positive association between log-transformed p,p’-DDE, and stable nitrogen isotope ratio (δ15N) values is found. There is no reproductive health risk in bird species as a result of the current levels of p,p’-DDE.
Article Highlights
DDT is the dominant contaminant found in both bird and fish species
There is interspecies variation in accumulation of p,p’-DDE among fish and bird species
p,p’-DDE is biomagnified through food chain involving both bird and fish species
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Gnanaprakasam PD, Vanisree AJ. Recurring detrimental impact of agrochemicals on the ecosystem, and a glimpse of organic farming as a possible rescue. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:75103-75112. [PMID: 36070036 DOI: 10.1007/s11356-022-22750-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
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Ayele S, Mamo Y, Deribe E, Eklo OM. Levels of organochlorine pesticides in five species of fish from Lake Ziway, Ethiopia. SCIENTIFIC AFRICAN 2022. [DOI: 10.1016/j.sciaf.2022.e01252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Sun J, Xu C, Peng H, Wan Y, Luo K, Barrett H, Hu J. Behaviors and trophodynamics of o,p'-dichlorodiphenyltrichloroethane (o,p'-DDT) in the aquatic food web: Comparison with p,p'-DDT. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 821:153447. [PMID: 35092765 DOI: 10.1016/j.scitotenv.2022.153447] [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: 11/21/2021] [Revised: 01/16/2022] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
The broad-spectrum insecticide p,p'-dichlorodiphenyltrichloroethane (p,p'-DDT) has been banned in most countries since the 1970s on account of its environmental persistence as well as the high biomagnification of its major metabolite 1,1-dichloro-2,2-bis(4-chorophenyl)ethylene (p,p'-DDE). However, the information on the bioaccumulation and behavior of p,p'-DDTs in aquatic organisms is lacking. In this study, all 6 DDT isomers were detected in biota from the food web of the Liaodong Bay, China, and the total concentrations of DDT isomers in Chinese anchovy (Thrissa kammalensis) and Japanese Spanish mackerel (Scomberomrus niphonius) were 223 ± 42 ng/g ww and 242 ± 70 ng/g ww, respectively. In biota, o,p'-DDD dominated among the o,p'-isomers (80.5 ± 17.3%), while p,p'-DDE dominated among the p,p'-isomers (61.8 ± 15.2%). Contrastingly, sediment from the Liaodong Bay contained similar proportions of o,p'-DDT and p,p'-DDTs, suggesting an isomer-specific metabolism of the compounds in biota. A well-controlled laboratory exposure experiment with Japanese medaka (Oryzias latipes) demonstrated that o,p'-DDT was more difficult to metabolize to o,p'-DDE compared with that of p,p'-DDT. Significantly positive regressions were found between trophic levels and lipid equivalent concentrations for both o,p'-DDT and o,p'-DDD, and the trophic magnification factors (TMFs) were estimated as 12.3 and 9.12 (p < 0.05), respectively. The TMFs of o,p'-DDT and o,p'-DDD in the aquatic food web were higher than p,p'-DDT (7.76), p,p'-DDD (4.17), and p,p'-DDE (3.39), which may be explained by the isomer-specific metabolism differences in biota.
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Affiliation(s)
- Jianxian Sun
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, People's Republic of China
| | - Chenke Xu
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, People's Republic of China
| | - Hui Peng
- Department of Chemistry, University of Toronto, Canada; School of the Environment, University of Toronto, Canada
| | - Yi Wan
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, People's Republic of China
| | - Kai Luo
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, People's Republic of China
| | - Holly Barrett
- Department of Chemistry, University of Toronto, Canada
| | - Jianying Hu
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, People's Republic of China.
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Mergia MT, Weldemariam ED, Eklo OM, Yimer GT. Levels and Trophic Transfer of Selected Pesticides in the Lake Ziway Ecosystem. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 108:830-838. [PMID: 35316353 DOI: 10.1007/s00128-022-03497-4] [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: 04/10/2021] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
The levels of 30 selected pesticides and trophic biomagnification of DDT were investigated in biota samples of the Lake Ziway in the Rift valley region, Ethiopia. Carbon source and trophic position were calculated by using 13C and 15N stable isotopes, individually, and trophic magnification factors (TMFs) were inferred. Only DDT and its metabolites were quantified in all samples analyzed. The most prominent metabolite was p,p'-DDE with mean concentration ranging from the 0.82-33.69 ng g-1 lipid weight. Moreover, the ratio of DDT/DDD + DDE in all the biota samples was less than 1 signifying historical DDT application. Regression of log [ΣDDT] vs TL (trophic level) among all biota species showed a significant correlation, indicating that DDTs are biomagnifying along with the food web of Lake Ziway with an estimated TMF of 2.75. The concentrations of DDTs and other organochlorine pesticides found in biota from Lake Ziway were, in general, lower than studies found in previous studies carried out in the same lake.
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Mergia MT, Weldemariam ED, Eklo OM, Yimer GT. Pesticide residue levels in surface water, using a passive sampler and in the sediment along the littoral zone of Lake Ziway at selected sites. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-04966-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
AbstractDiaion® HP-20 resin passive samplers deployed in water and sediment samples collected from Lake Ziway were analyzed for 30 organochlorine, organophosphorus, carboxamide, and pyrethroid pesticide residues. The samples were collected from purposely selected sampling stations in five sites on Lake Ziway. Levels of selected pesticides were determined by GC–MS/MS in all samples. p,p′DDE and boscalid residues were the only detected pesticides in sediment samples. Similarly, only metalaxyl and boscalid residues were recovered from HP-20 resins. The concentration of p,p′DDE and boscalid in sediment ranged from 0.66–7.23 and 0.1–15.26 ng g−1 dry weight respectively. The presence of p,p′DDE but no other metabolites of DDT in all sediment samples indicated that DDT residues in Ziway Lake were aged and probably originated from the weathered agricultural soils of the surrounding region. The highest level of boscalid was recorded at Site 2 (near the floriculture enterprises) both in sediment and in HP-20 resins with a mean concentration of 11.8 ng g−1 dw and 39.6 ng g−1 disk respectively. However, the concertation of metalaxyl was the highest in the HP-20 resins deployed at Site1 and Site 4 (near the intensive small-scale vegetable farm) with a mean concentration of 54.7 ng g−1 disk and 54.3 ng g−1 disk respectively. Generally, most sampling sites of p,p′DDE were found to have a moderate ecological risk based on levels specified in the sediment quality standards. Moreover, the relatively high boscalid and metalaxyl levels in HP-20 deployed in Lake Ziway would be the result of recent intensive pesticide use by floriculture enterprises and small-scale vegetable farmers in the region. A spatial variation on the accumulation of detected pesticides among the sampling sites depends on the anthropogenic activities, around the lake from the point and non-point sources. Although most of the analyzed pesticides were below the detectable limit, further studies and continued monitoring of currently used pesticide residues in the Lake are highly recommended.
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Yaglova NV, Tsomartova DA, Obernikhin SS, Yaglov VV, Nazimova SV, Tsomartova ES, Chereshneva EV, Ivanova MY, Lomanovskaya TA. Differential Disrupting Effects of Prolonged Low-Dose Exposure to Dichlorodiphenyltrichloroethane on Androgen and Estrogen Production in Males. Int J Mol Sci 2021; 22:3155. [PMID: 33808818 PMCID: PMC8003643 DOI: 10.3390/ijms22063155] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 02/06/2023] Open
Abstract
Dichlorodiphenyltrichloroethane (DDT) is the most widespread, persistent pollutant and endocrine disruptor on the planet. Although DDT has been found to block androgen receptors, the effects of its low-dose exposure in different periods of ontogeny on the male reproductive system remain unclear. We evaluate sex steroid hormone production in the pubertal period and after maturation in male Wistar rats exposed to low doses of o,p'-DDT, either during prenatal and postnatal development or postnatal development alone. Prenatally and postnatally exposed rats exhibit lower testosterone production and increased estradiol and estriol serum levels after maturation, associated with the delayed growth of gonads. Postnatally exposed rats demonstrate accelerated growth of gonads and higher testosterone production in the pubertal period. In contrast to the previous group, they do not present raised estradiol production. All of the exposed animals exhibit a reduced conversion of progesterone to 17OH-progesterone after sexual maturation, which indicates putative attenuation of sex steroid production. Thus, the study reveals age-dependent outcomes of low-dose exposure to DDT. Prenatal onset of exposure results in the later onset of androgen production and the enhanced conversion of androgens to estrogens after puberty, while postnatal exposure induces the earlier onset of androgen secretion.
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Affiliation(s)
- Nataliya V. Yaglova
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
| | - Dibakhan A. Tsomartova
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
- Department of Histology, Cytology, and Embryology, Federal State Funded Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia; (E.V.C.); (M.Y.I.); (T.A.L.)
| | - Sergey S. Obernikhin
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
| | - Valentin V. Yaglov
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
| | - Svetlana V. Nazimova
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
| | - Elina S. Tsomartova
- Laboratory of Endocrine System Development, Federal State Budgetary Scientific Institution “Research Institute of Human Morphology”, 117418 Moscow, Russia; (D.A.T.); (S.S.O.); (V.V.Y.); (S.V.N.); (E.S.T.)
- Department of Histology, Cytology, and Embryology, Federal State Funded Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia; (E.V.C.); (M.Y.I.); (T.A.L.)
| | - Elizaveta V. Chereshneva
- Department of Histology, Cytology, and Embryology, Federal State Funded Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia; (E.V.C.); (M.Y.I.); (T.A.L.)
| | - Marina Y. Ivanova
- Department of Histology, Cytology, and Embryology, Federal State Funded Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia; (E.V.C.); (M.Y.I.); (T.A.L.)
| | - Tatiana A. Lomanovskaya
- Department of Histology, Cytology, and Embryology, Federal State Funded Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia; (E.V.C.); (M.Y.I.); (T.A.L.)
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Merga LB, Mengistie AA, Alemu MT, Van den Brink PJ. Biological and chemical monitoring of the ecological risks of pesticides in Lake Ziway, Ethiopia. CHEMOSPHERE 2021; 266:129214. [PMID: 33310518 DOI: 10.1016/j.chemosphere.2020.129214] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/21/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
Lake Ziway, a freshwater lake located in Ethiopia, is under the pressure of pesticide and nutrient pollution due to agricultural activity and urbanization. This study has analysed concentrations of insecticides, fungicides and nutrients in water and sediment samples of Lake Ziway taken in the wet and dry season at 13 sites expected to be under different environmental stress and assessed their expected ecological impacts. Malathion, dimethoate, metalaxyl, diazinon, chlorpyrifos, fenitrothion and endosulfan were detected in more than half of the water samples, while diazinon, α-cypermethrin and endosulfan were frequently detected (>25%) in sediment samples. Higher levels of physicochemical parameters were observed at sample locations proximate to agricultural and urban activities. Risk quotients (RQ) and multi-substance Potentially Affected Fraction (msPAFRA) were calculated to assess the ecological risk of individual and mixture of pesticides, respectively. The majority of the pesticides detected in the water of the lake showed a potential acute risk (RQ > 1), specifically the insecticides chlorpyrifos, λ-cyhalothrin and α-cypermethrin for which high potential acute risks were calculated using a 2nd tier risk assessment. Levels of pesticides in sediment showed low ecological risks. Arthropods and fishes are expected to be highly affected by mixtures of pesticides (msPAFRA = < 1-80%) detected at locations that are proximate to smallholders' farms, and receive largescale farms' wastewater and at sites where inflow rivers join the lake. Macroinvertebrates based redundancy analysis showed the effectiveness of EPT richness to assess ecological status of the lake. Training for smallholder farmers on pesticides safety and usage, and implementation of improved effluent management mechanisms by floriculture farms are urgently needed intervention measures to reduce the pollution.
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Affiliation(s)
- Lemessa B Merga
- Aquatic Ecology and Water Quality Management Group, Wageningen University, P.O. Box 47, 6700 AA, Wageningen, the Netherlands; Department of Chemistry, Ambo University, P.O. Box 240, Ambo, Ethiopia
| | | | - Miresa T Alemu
- Department of Chemistry, Ambo University, P.O. Box 240, Ambo, Ethiopia
| | - Paul J Van den Brink
- Aquatic Ecology and Water Quality Management Group, Wageningen University, P.O. Box 47, 6700 AA, Wageningen, the Netherlands; Wageningen Environmental Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands.
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Sun RX, Sun Y, Xie XD, Yang BZ, Cao LY, Luo S, Wang YY, Mai BX. Bioaccumulation and human health risk assessment of DDT and its metabolites (DDTs) in yellowfin tuna (Thunnus albacares) and their prey from the South China Sea. MARINE POLLUTION BULLETIN 2020; 158:111396. [PMID: 32753181 DOI: 10.1016/j.marpolbul.2020.111396] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/19/2020] [Accepted: 06/19/2020] [Indexed: 06/11/2023]
Abstract
DDTs were detected in yellowfin tuna (Thunnus albacares, 92.1-221.8 ng‧g-1 lipid weight) and their prey (54.9-93.5 ng‧g-1 lipid weight) from the South China Sea (SCS). DDT levels reported in this study were lower than those of the previous studies indicated the recent mitigation of DDT contamination in the SCS. Higher DDT levels were observed in fat abdominal muscle than lean dorsal muscle in adult yellowfin tuna. Meanwhile, DDT levels in adult yellowfin tuna were higher than the young ones. The composition profiles of DDT and its metabolites suggested DDTs in fish in the SCS were mainly derived from the historical use of technical DDTs. DDTs were biomagnified through food chains with the trophic magnification factor of 2.5. Risk assessment results indicated that dietary exposure to DDTs through lifetime fish consumption from the SCS would pose little cancer and noncarcinogenic risk to coastal residents.
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Affiliation(s)
- Run-Xia Sun
- School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Yue Sun
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen University, Shenzhen 518060, China
| | - Xian-De Xie
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Bing-Zhong Yang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Open-Sea Fishery Development, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, China
| | - Lin-Ying Cao
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Shuang Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yang-Yang Wang
- College of Environment and Planning, Henan University, Kaifeng 475004, China
| | - Bi-Xian Mai
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
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Deribe E. Investigating the Spatial Trends in the Level of Organic Contaminants in the Ethiopian Rift Valley Lakes Using Semipermeable Membrane Devices. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2018; 101:20-25. [PMID: 29785646 DOI: 10.1007/s00128-018-2358-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/11/2018] [Indexed: 06/08/2023]
Abstract
Organic pollutants in the Ethiopian Rift Valley Lakes are the major factors that contribute to severe environmental problem. SPMDs were deployed for the analysis of selected organic pollutants for 1 month at 2 sites in Lakes Hawassa, Ziway and Koka, Ethiopia. From SPMDs placed in the three lakes, the predominant OCPs were DDT which comprise 67% and followed by endosulfan 23% of the total organochlorine pesticides (OCPs) retrieved. The highest level of OCPs, in general, was found in the SPMDs deployed in Lake Ziway with the mean concentration of 308.5 ng/SPMD. However, the concentrations of polychlorinated biphenyls (PCBs) were the highest in the SPMDs deployed in Lake Hawassa with mean concentration of 50.2 ng/SPMD. Spatial variation on the accumulation of OCPs and PCBs among the lakes depends on the shoreline activities, distance of the lakes from point and non-point sources, and the biofouling factors.
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Affiliation(s)
- Ermias Deribe
- Department of Biology, College of Natural and Computational Sciences, Hawassa University, P.O. Box 5, Hawassa, Ethiopia.
- Department of Plant and Environmental Sciences, Norwegian University of Life Sciences, P.O. Box 5003, 1432, Ås, Norway.
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16
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Kajta M, Wnuk A, Rzemieniec J, Litwa E, Lason W, Zelek-Molik A, Nalepa I, Rogóż Z, Grochowalski A, Wojtowicz AK. Depressive-like effect of prenatal exposure to DDT involves global DNA hypomethylation and impairment of GPER1/ESR1 protein levels but not ESR2 and AHR/ARNT signaling. J Steroid Biochem Mol Biol 2017; 171:94-109. [PMID: 28263910 DOI: 10.1016/j.jsbmb.2017.03.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 02/22/2017] [Accepted: 03/01/2017] [Indexed: 01/01/2023]
Abstract
Several lines of evidence suggest that exposures to Endocrine Disrupting Chemicals (EDCs) such as pesticides increase the risks of neuropsychiatric disorders. Despite extended residual persistence of dichlorodiphenyltrichloroethane (DDT) in the environment, the mechanisms of perinatal actions of DDT that could account for adult-onset of depression are largely unknown. This study demonstrated the isomer-specific induction of depressive-like behavior and impairment of Htr1a/serotonin signaling in one-month-old mice that were prenatally exposed to DDT. The effects were reversed by the antidepressant citalopram as evidenced in the forced swimming (FST) and tail suspension (TST) tests in the male and female mice. Prenatally administered DDT accumulated in mouse brain as determined with gas chromatography and tandem mass spectrometry, led to global DNA hypomethylation, and altered the levels of methylated DNA in specific genes. The induction of depressive-like behavior and impairment of Htr1a/serotonin signaling were accompanied by p,p'-DDT-specific decrease in the levels of estrogen receptors i.e. ESR1 and/or GPER1 depending on sex. In contrast, o,p'-DDT did not induce depressive-like effects and exhibited quite distinct pattern of biochemical alterations that was related to aryl hydrocarbon receptor (AHR), its nuclear translocator ARNT, and ESR2. Exposure to o,p'-DDT increased AHR expression in male and female brains, and reduced expression levels of ARNT and ESR2 in the female brains. The evolution of p,p'-DDT-induced depressive-like behavior was preceded by attenuation of Htr1a and Gper1/GPER1 expression as observed in the 7-day-old mouse pups. Because p,p'-DDT caused sex- and age-independent attenuation of GPER1, we suggest that impairment of GPER1 signaling plays a key role in the propagation of DDT-induced depressive-like symptoms.
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Affiliation(s)
- Malgorzata Kajta
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Smetna Street 12, 31-343 Krakow, Poland.
| | - Agnieszka Wnuk
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Smetna Street 12, 31-343 Krakow, Poland
| | - Joanna Rzemieniec
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Smetna Street 12, 31-343 Krakow, Poland
| | - Ewa Litwa
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Smetna Street 12, 31-343 Krakow, Poland
| | - Wladyslaw Lason
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Smetna Street 12, 31-343 Krakow, Poland
| | - Agnieszka Zelek-Molik
- Department of Brain Biochemistry, Institute of Pharmacology, Polish Academy of Sciences, Smetna Street 12, 31-343 Krakow, Poland
| | - Irena Nalepa
- Department of Brain Biochemistry, Institute of Pharmacology, Polish Academy of Sciences, Smetna Street 12, 31-343 Krakow, Poland
| | - Zofia Rogóż
- Department of Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Smetna Street 12, 31-343 Krakow, Poland
| | - Adam Grochowalski
- Department of Analytical Chemistry, Krakow University of Technology, Warszawska Street 24, 31-155 Krakow, Poland
| | - Anna K Wojtowicz
- Department of Animal Biotechnology, Faculty of Animal Sciences, University of Agriculture, Redzina Street 1B, 30-248 Krakow, Poland
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Effect of aerobic exercise intervention on DDT degradation and oxidative stress in rats. Saudi J Biol Sci 2017; 24:664-671. [PMID: 28386194 PMCID: PMC5372423 DOI: 10.1016/j.sjbs.2017.01.040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 12/28/2016] [Accepted: 01/07/2017] [Indexed: 01/19/2023] Open
Abstract
Dichlorodiphenyltrichloroethane (DDT) reportedly causes extensively acute or chronic effects to human health. Exercise can generate positive stress. We evaluated the effect of aerobic exercise on DDT degradation and oxidative stress. Main methods: Male Wistar rats were randomly assigned into control (C), DDT without exercise training (D), and DDT plus exercise training (DE) groups. The rats were treated as follows: DDT exposure to D and DE groups at the first 2 weeks; aerobic exercise treatment only to the DE group from the 1st day until the rats are killed. DDT levels in excrements, muscle, liver, serum, and hearts were analyzed. Superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), and malondialdehyde (MDA) levels were determined. Aerobic exercise accelerated the degradation of DDT primarily to DDE due to better oxygen availability and aerobic condition and promoted the degradation of DDT. Cumulative oxidative damage of DDT and exercise led to significant decrease of SOD level. Exercise resulted in consistent increase in SOD activity. Aerobic exercise enhanced activities of CAT and GSH-Px and promoted MDA scavenging. Results suggested that exercise can accelerate adaptive responses to oxidative stress and activate antioxidant enzymes activities. Exercise can also facilitate the reduction of DDT-induced oxidative damage and promoted DDT degradation. This study strongly implicated the positive effect of exercise training on DDT-induced liver oxidative stress.
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Ramachandran S, Sivasamy A, Kumar BD. Nitrogen doped nanocrystalline semiconductor metal oxide: An efficient UV active photocatalyst for the oxidation of an organic dye using slurry Photoreactor. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 134:445-454. [PMID: 26906923 DOI: 10.1016/j.ecoenv.2016.01.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 10/07/2015] [Accepted: 01/26/2016] [Indexed: 06/05/2023]
Abstract
Water pollution is a cause for serious concern in today's world. A major contributor to water pollution is industrial effluents containing dyes and other organic molecules. Waste water treatment has become a priority area in today's applied scientific research as it seeks to minimize the toxicity of the effluents being discharged and increase the possibility of water recycling. An efficient and eco-friendly way of degrading toxic molecules is to use nano metal-oxide photocatalysts. The present study aims at enhancing the photocatalytic activity of a semiconductor metal oxide by doping it with nitrogen. A sol-gel cum combustion method was employed to synthesize the catalyst. The prepared catalyst was characterized by FT-IR, XRD, UV-DRS, FESEM and AFM techniques. UV-DRS result showed the catalyst to possess band gap energy of 2.97eV, thus making it active in the UV region of the spectrum. Its photocatalytic activity was evaluated by the degradation of a model pollutant-Orange G dye, under UV light irradiation. Preliminary experiments were carried out to study the effects of pH, catalyst dosage and initial dye concentration on the extent of dye degradation. Kinetic studies revealed that the reaction followed pseudo first order kinetics. The effect of electrolytes on catalyst efficiency was also studied. The progress of the reaction was monitored by absorption studies and measuring the reduction in COD. The catalyst thus prepared was seen to have a high photocatalytic efficiency. The use of this catalyst is a promising means of waste water treatment.
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Affiliation(s)
- Saranya Ramachandran
- Chemical Engineering Area CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
| | - A Sivasamy
- Chemical Engineering Area CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India.
| | - B Dinesh Kumar
- Chemical Engineering Area CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
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Mansouri A, Cregut M, Abbes C, Durand MJ, Landoulsi A, Thouand G. The Environmental Issues of DDT Pollution and Bioremediation: a Multidisciplinary Review. Appl Biochem Biotechnol 2016; 181:309-339. [PMID: 27591882 DOI: 10.1007/s12010-016-2214-5] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 08/12/2016] [Indexed: 12/01/2022]
Abstract
DDT (1,1,1-trichloro-2,2-bis(4-chlorophenyl) ethane) is probably the best known and most useful organochlorine insecticide in the world which was used since 1945 for agricultural purposes and also for vector-borne disease control such as malaria since 1955, until its banishment in most countries by the Stockholm convention for ecologic considerations. However, the World Health Organization allowed its reintroduction only for control of vector-borne diseases in some tropical countries in 2006. Due to its physicochemical properties and specially its persistence related with a half-life up to 30 years, DDT linked to several health and social problems which are due to its accumulation in the environment and its biomagnification properties in living organisms. This manuscript compiles a multidisciplinary review to evaluate primarily (i) the worldwide contamination of DDT and (ii) its (eco) toxicological impact onto living organisms. Secondly, several ways for DDT bioremediation from contaminated environment are discussed. For this, reports on DDT biodegradation capabilities by microorganisms and ways to enhance bioremediation strategies to remove DDT are presented. The different existing strategies for DDT bioremediation are evaluated with their efficiencies and limitations to struggle efficiently this contaminant. Finally, rising new approaches and technological bottlenecks to promote DDT bioremediation are discussed.
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Affiliation(s)
- Ahlem Mansouri
- University of Nantes, UMR CNRS 6144 GEPEA, CBAC group, 18 Bvd Gaston Defferre, 85000, La Roche sur Yon, France.,Faculty of Sciences of Bizerte, Laboratory of Biochemistry and Molecular Biology, University of Carthage, Zarzouna, 7021, Tunisia
| | - Mickael Cregut
- University of Nantes, UMR CNRS 6144 GEPEA, CBAC group, 18 Bvd Gaston Defferre, 85000, La Roche sur Yon, France
| | - Chiraz Abbes
- Faculty of Sciences of Bizerte, Laboratory of Biochemistry and Molecular Biology, University of Carthage, Zarzouna, 7021, Tunisia
| | - Marie-Jose Durand
- University of Nantes, UMR CNRS 6144 GEPEA, CBAC group, 18 Bvd Gaston Defferre, 85000, La Roche sur Yon, France
| | - Ahmed Landoulsi
- Faculty of Sciences of Bizerte, Laboratory of Biochemistry and Molecular Biology, University of Carthage, Zarzouna, 7021, Tunisia
| | - Gerald Thouand
- University of Nantes, UMR CNRS 6144 GEPEA, CBAC group, 18 Bvd Gaston Defferre, 85000, La Roche sur Yon, France.
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20
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Mendes RDA, Lopes ASDC, de Souza LC, Lima MDO, Santos LDS. DDT concentration in fish from the Tapajós River in the Amazon region, Brazil. CHEMOSPHERE 2016; 153:340-345. [PMID: 27027561 DOI: 10.1016/j.chemosphere.2016.03.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/11/2016] [Accepted: 03/12/2016] [Indexed: 06/05/2023]
Abstract
DDT and metabolites were measured in six species of fish collected from the Tapajós River in the village of Barreiras, near the town of Itaituba in the Brazilian Amazon region. The selected fish were the most consumed and economically important to the local people. DDT was used frequently in this region for malaria control. Fish samples were analyzed after extraction by microwave-assisted extraction in hexane/acetone (8:2, v/v) by gas chromatography with electron capture detector. Residues of op'-DDT and pp'-DDT and metabolites were detected, including pp'-DDE, pp'-DDD, op'-DDT, and op'-DDE, in 98% of the samples, with a greater abundance of pp'-DDT. Total DDT levels were 7.1-249.5 ng g(-1) wet weight (w.w). The DDE/DDT ratio was low, indicating recent exposure to DDT. The study area that may be related to generated waste used in public health campaigns to combat mosquitos (Anopheles spp.), still present in the Amazon environment, that transmit malaria. DDT levels and metabolites found in fish species do not present risks to human health because they are below acceptable limits for consumption.
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Affiliation(s)
- Rosivaldo de Alcântara Mendes
- Instituto Evandro Chagas, Seção de Meio Ambiente, Laboratório de Toxicologia, 67030-000, P.O. Box 1530, Ananindeua, PA, Brazil.
| | | | - Larissa Costa de Souza
- Instituto Evandro Chagas, Seção de Meio Ambiente, Laboratório de Toxicologia, 67030-000, P.O. Box 1530, Ananindeua, PA, Brazil
| | - Marcelo de Oliveira Lima
- Instituto Evandro Chagas, Seção de Meio Ambiente, Laboratório de Toxicologia, 67030-000, P.O. Box 1530, Ananindeua, PA, Brazil
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Suspected-target pesticide screening using gas chromatography–quadrupole time-of-flight mass spectrometry with high resolution deconvolution and retention index/mass spectrum library. Talanta 2014; 128:156-63. [DOI: 10.1016/j.talanta.2014.04.068] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 04/19/2014] [Accepted: 04/23/2014] [Indexed: 12/25/2022]
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Yohannes YB, Ikenaka Y, Saengtienchai A, Watanabe KP, Nakayama SMM, Ishizuka M. Concentrations and human health risk assessment of organochlorine pesticides in edible fish species from a Rift Valley lake-Lake Ziway, Ethiopia. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 106:95-101. [PMID: 24836883 DOI: 10.1016/j.ecoenv.2014.04.014] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Revised: 04/10/2014] [Accepted: 04/14/2014] [Indexed: 06/03/2023]
Abstract
Fish consumption is known to have several health benefits for humans. However, the accumulation of organic pollutants, like organochlorine pesticides (OCPs) could pose health hazards. Thus, OCPs in edible fish species (Oreochromis niloticus, Tilapia zillii, Carassius spp., and Clarias gariepinus) from Lake Ziway, an Ethiopian Rift Valley Lake were investigated to assess the potential human health hazards of these contaminants. Dichlorodiphenyltrichloroethanes (DDTs), hexachlorocyclohexanes (HCHs), chlordanes, and heptachlors were observed with ΣOCPs concentration ranging from 1.41 to 63.8 ng g(-1) ww. DDTs were the predominant contaminants (0.9 to 61.9 ng g(-1) ww), followed by HCHs. The predominance of DDTs may be attributed to their current use in vector control and contamination from past usage. The estimated daily intakes (EDIs) of OCPs from all fish species were much lower than the acceptable daily intakes (ADIs), indicating that consumption of fish is at little risk to human health at present. However, the cancer risk estimates in the area of concern and the hazard ratios (HRs) of HCHs, DDTs, and heptachlors exceeded the threshold value of one, indicating daily exposure to these compounds is a potential concern. This may result in a lifetime cancer risk greater than of 1 in 10(6).
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Affiliation(s)
- Yared B Yohannes
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan; University of Gondar, Faculty of Natural and Computational Science, Department of Chemistry, PO Box 196, Gondar, Ethiopia
| | - Yoshinori Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Aksorn Saengtienchai
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Kensuke P Watanabe
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Shouta M M Nakayama
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Mayumi Ishizuka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18, Nishi 9, Kita-ku, Sapporo 060-0818, Japan.
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Deribe E, Rosseland BO, Borgstrøm R, Salbu B, Gebremariam Z, Dadebo E, Skipperud L, Eklo OM. Organochlorine pesticides and polychlorinated biphenyls in fish from Lake Awassa in the Ethiopian Rift Valley: human health risks. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2014; 93:238-244. [PMID: 24902651 DOI: 10.1007/s00128-014-1314-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 05/28/2014] [Indexed: 06/03/2023]
Abstract
Dietary intake of fish containing organic contaminants poses a potential threat to human health. In the present work, an assessment has been carried out to look at the human health risk associated with consumption of fish contaminated with organochlorine pesticides (OCPs) and polychlorinated biphenyles (PCBs) in certain fish species collected from Lake Hawassa, Ethiopia. The health risk assessment was made by comparing the concentrations of OCPs and PCBs in fish muscle tissues with reference doses given in the USEPA guidelines. Dichlorodiphenyltrichloroethanes (DDTs), endosulfans, PCBs and chloridanes were identified in fish species collected from Lake Hawassa. The most predominant pesticides were DDTs, with mean concentrations of ΣDDT ranging from 19 to 56 ng g(-1) wet weights. The highest concentrations of DDTs were found in Barbus intermedius, representing the highest trophic level. PCBs, DDT and endosulfan concentrations found in B. intermedius exceeded the reference dose for children between the ages of 0-1 year (with hazard index of above 1.0). Therefore, consumption of fish from a high trophic level (e.g. B. intermedius) from Lake Hawassa may pose a special health risk to children.
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Affiliation(s)
- Ermias Deribe
- Department of Plant and Environmental Sciences, Norwegian University of Life Sciences, P.O. Box 5003, 1432, Ås, Norway,
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