ArticlePloS one2018
Organochlorine pesticides, polybrominated diphenyl ethers and polychlorinated biphenyls in surficial sediments of the Awash River Basin, Ethiopia.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.
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Who cites it
13 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Environmental Risks of Pesticide Residues in the Lake Tana Sub-basin, Ethiopia: A Review.Environmental management · 2026Pooled it
- Birth prevalence and risk factors of neural tube defects in Ethiopia: a systematic review and meta-analysis.BMJ open · 2023Pooled it
- Residues of organochlorine pesticides in aquatic ecosystems of Southwestern Ethiopia: implications for ecological risks.Scientific reports · 2026Article
- Residue Monitoring and Risk Assessment of 51 Pesticides in Domestic Shellfish and Seaweed Using GC-MS/MS.International journal of molecular sciences · 2025Article
- Assessment of organophosphate pesticides in soils and vegetables from agricultural areas of Delta Central District, Nigeria.Scientific reports · 2025Article
- Endocrine disrupting chemical mixture exposure and risk of papillary thyroid cancer in U.S. military personnel: A nested case-control study.The Science of the total environment · 2024Article
- DDT and Its Metabolites in Ethiopian Aquatic Ecosystems: Environmental and Health Implications.Environmental health insights · 2024Review
- Investigating the spatial distribution of polychlorinated biphenyls in sediment in the Pearl River Delta, South China.Environmental monitoring and assessment · 2021Article
- Spatial and temporal trends of polychlorinated biphenyls in water and sediment from Nairobi River, Kenya.Environmental monitoring and assessment · 2020Article
- Validation of analytical methods for organochlorine pesticide detection in shellfish and cephalopods by GC-MS/MS.Food science and biotechnology · 2020Article
- Assessment of Pesticide Residue Content in Polish Agricultural Soils.Molecules (Basel, Switzerland) · 2020Article
- Occurrence and risk evaluation of organochlorine contaminants in surface water along the course of Swartkops and Sundays River Estuaries, Eastern Cape Province, South Africa.Environmental geochemistry and health · 2019Article
- The occurrence of polybrominated diphenyl ether (PBDE) contamination in soil, water/sediment, and air.Environmental science and pollution research international · 2019Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study was initiated to document information on the levels of sediment contamination with organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs). Moreover, it was intended to identify compounds which impose major ecological risks to aquatic organisms. Surficial sediments were collected from 46 locations within the streams and rivers of the Awash River Basin. In total 30 compounds were included in this study: 16 OCPs, 7 PCBs and 7 PBDEs. The total concentrations of OCPs, PCBs, and PBDEs ranged from 6.63 to 206.13 ng g-1- dry weight (dw), 0.85 to 26.56 ng g-1-dw and 3.71 to 18.95 ng g-1-dw respectively. Out of all the tested OCPs, heptachlor, heptachlor epoxide, p,p'-dichlorodiphenyltrichloroethane (p,p'-DDT) and β-hexachlorocyclohexane (β-HCH) were the most abundant in the study area. The ratio of (β-HCH/∑HCHs) indicated that HCHs were originally from earlier usage of HCH in the area whereas the ratio of (p,p'-DDT/p,p'-DDE) showed that the majority of DDT components were recently introduced into most of the sampling locations. Even though there were relatively low concentrations of PBDEs and PCBs across the sampling sites, substantial amounts of PCBs were observed in Addis Ababa City. According to the established ecological risk indices, p,p'-DDT and γ-HCH are the major concerns for potential adverse ecological impacts. This study provided the first comprehensive information on organohalogenated compounds' (OCs') occurrences, spatial distributions, and ecological risks in sediments of the Awash River Basin. Thus, the report will be very useful background information for further studies on sediment contamination with OCs' in the region. It also adds important first-hand data to the field of fresh water ecology and provides useful empirical evidence for setting pollution control priorities for an ecologically important, yet largely understudied region.
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