Impact of the COVID-19 lockdown period on surface water quality in the Meric-Ergene River Basin, Northwest Turkey

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dc.authoridTokatlı, Cem/0000-0003-2080-7920
dc.authoridVarol, Memet/0000-0001-6475-0570
dc.authorwosidTokatlı, Cem/AAN-3814-2021
dc.contributor.authorTokatli, Cem
dc.contributor.authorVarol, Memet
dc.date.accessioned2024-06-12T11:17:13Z
dc.date.available2024-06-12T11:17:13Z
dc.date.issued2021
dc.departmentTrakya Üniversitesien_US
dc.description.abstractThe surface water resources in the Meric-Ergene River Basin, especially Ergene River and corlu Stream are among the most polluted rivers in Turkey. Despite the action plans for prevention and control of surface water pollution in the basin, the desired results have not been achieved. However, the implementation of a nationwide lockdown due to the COVID-19 might probably lead to an improvement in the surface water quality. We evaluated the impact of the lockdown on water quality by measuring the levels of physico-chemical variables and metal(loid)s in water samples taken from 25 sampling stations in the basin. BOD, COD, EC, turbidity, TSS and Mn levels did not show significant differences between the pre-lockdown and lockdown periods due to the ongoing domestic wastewater discharges and agricultural activities in the basin during the lockdown period. However, Cr, Ni, Zn, Cu, As, Pb and Cd concentrations decreased considerably during the lockdown. Similarly, heavy metal pollution index and heavy metal evaluation index values showed a significant improvement in water quality of almost all stations during the lockdown period. Also, total hazard index values for children and adults reduced by 67% and 69%, respectively during the lockdown period, while total carcinogenic risk values for As and Cr reduced by 60% and 94%, respectively. The limited operational status of most industrial facilities in the basin during the lockdown reduced the amount of industrial effluents, leading to significant improvement in surface water quality for metal(loid)s. The lockdown has shown that the solution for preservation and sustainability of natural water resources lies in our hands, and the efficient management of pollution sources can prevent surface water pollution at a very rapid pace. Finally, we suggest that water management policy needs to be improved and implemented.en_US
dc.description.sponsorshipCommission of Scientific Research Projects of Trakya University [2019/279]en_US
dc.description.sponsorshipThis study was supported by the Commission of Scientific Research Projects of Trakya University (2019/279) . Our special thanks go to the editors Jose L. Domingo and Avelino Nunez Delgado and anonymous reviewers for their constructive comments and suggestions forimproving this manuscript. We would also like to thank Ibrahim Tunik for his contribution to the revision of English of the manuscript.en_US
dc.identifier.doi10.1016/j.envres.2021.111051
dc.identifier.issn0013-9351
dc.identifier.issn1096-0953
dc.identifier.pmid33753075en_US
dc.identifier.scopus2-s2.0-85103336363en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.envres.2021.111051
dc.identifier.urihttps://hdl.handle.net/20.500.14551/24608
dc.identifier.volume197en_US
dc.identifier.wosWOS:000663715300003en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherAcademic Press Inc Elsevier Scienceen_US
dc.relation.ispartofEnvironmental Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectWater Qualityen_US
dc.subjectCOVID-19en_US
dc.subjectMeric-Ergene River Basinen_US
dc.subjectMetal(Loid)Sen_US
dc.subjectLockdownen_US
dc.subjectRisken_US
dc.subjectMetalsen_US
dc.subjectIndexen_US
dc.titleImpact of the COVID-19 lockdown period on surface water quality in the Meric-Ergene River Basin, Northwest Turkeyen_US
dc.typeArticleen_US

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