Show simple item record

dc.creatorPergal, Marija V.
dc.creatorKodranov, Igor D.
dc.creatorDojčinović, Biljana P.
dc.creatorAvdin, Viacheslav V.
dc.creatorStanković, Dalibor M.
dc.creatorPetković, Branka B.
dc.creatorManojlović, Dragan D.
dc.date.accessioned2021-03-01T13:16:09Z
dc.date.available2021-03-01T13:16:09Z
dc.date.issued2020
dc.identifier.issn0944-1344
dc.identifier.urihttps://vinar.vin.bg.ac.rs/handle/123456789/8994
dc.description.abstractChlorine dioxide (ClO2) degradation of the organophosphorus pesticides azamethiphos (AZA) and dimethoate (DM) (10 mg/L) in deionized water and in Sava River water was investigated for the first time. Pesticide degradation was studied in terms of ClO2 level (5 and 10 mg/L), degradation duration (0.5, 1, 2, 3, 6, and 24 h), pH (3.00, 7.00, and 9.00), and under light/dark conditions in deionized water. Degradation was monitored using high-performance liquid chromatography. Gas chromatography coupled with triple quadrupole mass detector was used to identify degradation products of pesticides. Total organic carbon was measured to determine the extent of mineralization after pesticide degradation. Real river water was used under recommended conditions to study the influence of organic matter on pesticide degradation. High degradation efficiency (88–100% for AZA and 85–98% for DM) was achieved in deionized water under various conditions, proving the flexibility of ClO2 degradation for the examined organophosphorus pesticides. In Sava River water, however, extended treatment duration achieved lower degradation efficiency, so ClO2 oxidized both the pesticides and dissolved organic matter in parallel. After degradation, AZA produced four identified products (6-chlorooxazolo[4,5-b]pyridin-2(3H)-one; O,O,S-trimethyl phosphorothioate; 6-chloro-3-(hydroxymethyl)oxazolo[4,5-b]pyridin-2(3H)-one; O,O-dimethyl S-hydrogen phosphorothioate) and DM produced three (O,O-dimethyl S-(2-(methylamino)-2-oxoethyl) phosphorothioate; e.g., omethoate; S-(2-(methylamino)-2-oxoethyl) O,O-dihydrogen phosphorothioate; O,O,S-trimethyl phosphorodithioate). Simple pesticide degradation mechanisms were deduced. Daphnia magna toxicity tests showed degradation products were less toxic than parent compounds. These results contribute to our understanding of the multiple influences that organophosphorus pesticides and their degradation products have on environmental ecosystems and to improving pesticide removal processes from water.
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200026/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200168/RS//
dc.rightsrestrictedAccess
dc.sourceEnvironmental Science and Pollution Research
dc.subjectRiver water sampleen
dc.subjectOrganophosphorus pesticidesen
dc.subjectChlorine dioxide treatmenten
dc.subjectWater qualityen
dc.subjectEcotoxicityen
dc.subjectGas chromatography with triple quad mass detectoren
dc.titleEvaluation of azamethiphos and dimethoate degradation using chlorine dioxide during water treatmenten
dc.typearticle
dc.rights.licenseARR
dcterms.abstractAвдин, Виацхеслав В.; Пергал, Марија В.; Кодранов, Игор Д.; Петковић, Бранка Б.; Манојловић, Драган Д.; Станковић, Далибор; Дојчиновић, Биљана П.;
dc.citation.volume27
dc.citation.issue21
dc.citation.spage27147
dc.citation.epage27160
dc.identifier.wos000532124500003
dc.identifier.doi10.1007/s11356-020-09069-5
dc.citation.rankM22~
dc.description.otherSupplementary material: [http://cherry.chem.bg.ac.rs/handle/123456789/4037]
dc.type.versionpublishedVersion
dc.identifier.scopus2-s2.0-85084657882


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record