Research output: Contribution to journal › Article › peer-review
Chemistry and Toxicity of Bottom Sediments in Small Watercourses of St. Petersburg. / Opekunov, A. Yu. ; Mitrofanova, E. S. ; Spasskii, V. V. ; Opekunova, M. G. ; Sheinerman, N. A. ; Chernyshova , A. V. .
In: Water Resources, Vol. 47, No. 2, 30.03.2020, p. 282-293.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Chemistry and Toxicity of Bottom Sediments in Small Watercourses of St. Petersburg
AU - Opekunov, A. Yu.
AU - Mitrofanova, E. S.
AU - Spasskii, V. V.
AU - Opekunova, M. G.
AU - Sheinerman, N. A.
AU - Chernyshova , A. V.
N1 - Funding Information: This study was supported by the Russian Foundation for Basic Research, project no. 19-05-00508.
PY - 2020/3/30
Y1 - 2020/3/30
N2 - The article gives the results of integrated studies of bottom sediments in four watercourses in the central St. Petersburg: the rivers of Ekateringofka, Okhta, Fontanka, and Chernaya Rechka. The river sediments are shown to be highly polluted by heavy metals and polycyclic aromatic hydrocarbons. Bioassay tests are used to show a considerable toxicity of sediments with elements of HM group (Ni, Zn, Cu, Cr, Mn, Cd) with a high probability of biological effects. However, studies by correlation and regression analysis have not demonstrated the contribution of polyarenes to the formation of sediment toxicity. This result is in agreement with estimates of sediment toxicity by PAH concentration converted to total organic carbon, and by characteristics of potential risk of biological effects TEC (Threshold Effects Concentrations), MEC (Median Effects Concentrations) and EEC (Extreme Effects Concentrations). Among the examined watercourses, of greatest hazard are the sediments of the Chernaya Rechka and Ol'khovka, especially, near wastewater discharge sites of plants of chemical (paint and varnish) industry and accumulator battery production.
AB - The article gives the results of integrated studies of bottom sediments in four watercourses in the central St. Petersburg: the rivers of Ekateringofka, Okhta, Fontanka, and Chernaya Rechka. The river sediments are shown to be highly polluted by heavy metals and polycyclic aromatic hydrocarbons. Bioassay tests are used to show a considerable toxicity of sediments with elements of HM group (Ni, Zn, Cu, Cr, Mn, Cd) with a high probability of biological effects. However, studies by correlation and regression analysis have not demonstrated the contribution of polyarenes to the formation of sediment toxicity. This result is in agreement with estimates of sediment toxicity by PAH concentration converted to total organic carbon, and by characteristics of potential risk of biological effects TEC (Threshold Effects Concentrations), MEC (Median Effects Concentrations) and EEC (Extreme Effects Concentrations). Among the examined watercourses, of greatest hazard are the sediments of the Chernaya Rechka and Ol'khovka, especially, near wastewater discharge sites of plants of chemical (paint and varnish) industry and accumulator battery production.
KW - bioassay
KW - bottom sediments
KW - heavy metals
KW - polycyclic aromatic hydrocarbons
KW - toxicity
UR - http://www.scopus.com/inward/record.url?scp=85082763427&partnerID=8YFLogxK
U2 - 10.1134/S0097807820020116
DO - 10.1134/S0097807820020116
M3 - Article
VL - 47
SP - 282
EP - 293
JO - Water Resources
JF - Water Resources
SN - 0097-8078
IS - 2
ER -
ID: 52497606