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@article{1496540, author = {Vašíčková, Jana and Hvězdová, Martina and Kosubová, Petra and Hofman, Jakub}, article_location = {OXFORD}, article_number = {February}, doi = {http://dx.doi.org/10.1016/j.chemosphere.2018.10.158}, keywords = {Ecological risk assessment; Pesticides residues; Concentration addition; Soil; Mixtures}, language = {eng}, issn = {0045-6535}, journal = {Chemosphere}, title = {Ecological risk assessment of pesticide residues in arable soils of the Czech Republic}, url = {https://www.sciencedirect.com/science/article/pii/S0045653518320113?via%3Dihub}, volume = {216}, year = {2019} }
TY - JOUR ID - 1496540 AU - Vašíčková, Jana - Hvězdová, Martina - Kosubová, Petra - Hofman, Jakub PY - 2019 TI - Ecological risk assessment of pesticide residues in arable soils of the Czech Republic JF - Chemosphere VL - 216 IS - February SP - 479-487 EP - 479-487 PB - PERGAMON-ELSEVIER SCIENCE LTD SN - 00456535 KW - Ecological risk assessment KW - Pesticides residues KW - Concentration addition KW - Soil KW - Mixtures UR - https://www.sciencedirect.com/science/article/pii/S0045653518320113?via%3Dihub L2 - https://www.sciencedirect.com/science/article/pii/S0045653518320113?via%3Dihub N2 - Currently used pesticides (CUPS) represent one of the largest intentional inputs of potentially hazardous compounds into agricultural soils. Subsequently, pesticide residues (PRs) and their transformation products (TPs) persist in agricultural soils, occurring in diverse mixtures of compounds in various concentrations. In this study, measured environmental concentrations (MECs) of CUP residues and TPs, originated from previous growing seasons in agricultural soils of the Czech Republic, were used to characterize the environmental risk for agroecosystems. Toxicity exposure ratios (TERs) were calculated using predicted no-effect concentrations (PNECs) and MECs in order to identify single pesticide residues risk to in-soil invertebrates and microorganisms. Ecological risk assessment (ERA) for the mixtures of pesticide residues at each monitored site was assessed using a risk quotient (RQ) method and considering concentration addition among components in the mixtures. The compilation of ecotoxicity data to derived PNECs for in-soil organisms clearly showed data gaps mainly for triazine and chloroacetanilide TPs. In addition, chronic toxicity data for in-soil invertebrates at different trophic levels are not available for 30% of monitored CUPs. The ERA revealed that pesticide residues in soil pose a risk at 35% of the sites (RQ >= 1). Among measured pesticides, epoxiconazole, atrazine-2-hydroxy, carbendazim, dimoxystrobin, terbuthylazine and difenoconazole were the main contributors to the overall pesticide mixture toxicity. The measured levels of epoxiconazole together with the frequent presence in soils represent a risk for the agroecosystems. Further assessment of higher tiers of ERA should be considered and prioritized in the pesticides risk management. ER -
VAŠÍČKOVÁ, Jana, Martina HVĚZDOVÁ, Petra KOSUBOVÁ and Jakub HOFMAN. Ecological risk assessment of pesticide residues in arable soils of the Czech Republic. \textit{Chemosphere}. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2019, vol.~216, February, p.~479-487. ISSN~0045-6535. Available from: https://dx.doi.org/10.1016/j.chemosphere.2018.10.158.
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