{"title":"Hydrocarbon Transformations in Bottom Sediments after an Emergency Spill of Diesel Fuel in Norilsk","authors":"Yu. S. Glyaznetsova, I. A. Nemirovskaya","doi":"10.1134/s0097807823700240","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>One year after an emergency spill of diesel fuel in Norilsk, hydrocarbon concentrations in bottom sediments of the Norilo-Pyasinskaya Water System decreased, but, on the average over the regions, they decreased in the surface layer in the same order as in 2020: Ambarnaya River mouth (835 µg/g, σ = 1788) > Bezymyannyi Creek—Daldykan River—Ambarnaya River (306 µg/g, σ = 273) > Pyasina River (23 µg/g, σ = 20) > Pyasino Lake (12 µg/g, σ = 8). The decrease in the concentrations was due to the degradation of low-molecular hydrocarbons. The concentration of polycyclic aromatic hydrocarbons in 2021 also varied within a narrower interval (0–1027 ng/g) than in 2020 (0–3865 ng/g). The oil origin of the hydrocarbons in the sediments of the Bezymyannyi Creek and the rivers of Daldykan and Ambarnaya is confirmed by their high content of alkylied naphthalene homologues. The accumulation of hydrocarbons in some horizons of the sedimentary stratum is due not only to the seepage of diesel fuel, but also to the input of organic matter from swampy areas and floodplain lakes, as well as to the burial of the surface layer by the flood of 2021.</p>","PeriodicalId":49368,"journal":{"name":"Water Resources","volume":"32 1","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water Resources","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1134/s0097807823700240","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"WATER RESOURCES","Score":null,"Total":0}
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Abstract
One year after an emergency spill of diesel fuel in Norilsk, hydrocarbon concentrations in bottom sediments of the Norilo-Pyasinskaya Water System decreased, but, on the average over the regions, they decreased in the surface layer in the same order as in 2020: Ambarnaya River mouth (835 µg/g, σ = 1788) > Bezymyannyi Creek—Daldykan River—Ambarnaya River (306 µg/g, σ = 273) > Pyasina River (23 µg/g, σ = 20) > Pyasino Lake (12 µg/g, σ = 8). The decrease in the concentrations was due to the degradation of low-molecular hydrocarbons. The concentration of polycyclic aromatic hydrocarbons in 2021 also varied within a narrower interval (0–1027 ng/g) than in 2020 (0–3865 ng/g). The oil origin of the hydrocarbons in the sediments of the Bezymyannyi Creek and the rivers of Daldykan and Ambarnaya is confirmed by their high content of alkylied naphthalene homologues. The accumulation of hydrocarbons in some horizons of the sedimentary stratum is due not only to the seepage of diesel fuel, but also to the input of organic matter from swampy areas and floodplain lakes, as well as to the burial of the surface layer by the flood of 2021.
期刊介绍：
Water Resources is a journal that publishes articles on the assessment of water resources, integrated water resource use, water quality, and environmental protection. The journal covers many areas of research, including prediction of variations in continental water resources and regime; hydrophysical, hydrodynamic, hydrochemical and hydrobiological processes, environmental aspects of water quality and protection; economic, social, and legal aspects of water-resource development; and experimental methods of studies.
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