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Gewählte Publikation:

Hvezdova, M; Kosubova, P; Kosikova, M; Scherr, KE; Simek, Z; Brodsky, L; Sudoma, M; Skulcova, L; Sanka, M; Svobodova, M; Krkoskova, L; Vasickova, J; Neuwirthova, N; Bielska, L; Hofman, J.
(2018): Currently and recently used pesticides in Central European arable soils
SCI TOTAL ENVIRON. 2018; 613: 361-370. FullText FullText_BOKU

Abstract:
Although large amounts of pesticides are used annually and amajority enters the soil to formshort-or long-term residues, extensive soil surveys for currently used pesticides (CUPs) are scarce. To determine the status of CUPsxxx occurrence in arable land in Central Europe, 51 CUPs and 9 transformation products (TPs) were analysed in 75 arable soils in the Czech Republic (CR) several months after the last pesticide application. Moreover, two banned triazines (simazine and atrazine) and their TPs were analysed because of their frequent detection in CR waters. Multi-residue pesticide analysis on LC-MS/MS after soil QuEChERS extraction was used. The soils contained multiple pesticide residues frequently (e.g. 51% soils with >= 5 pesticides). The levels were also noticeable (e.g. 36% soils with >= 3 pesticides exceeding the threshold of 0.01 mg/kg). After triazine herbicides (89% soils), conazole fungicides showed the second most frequent occurrence (73% soils) and also high levels (53% soils with total conazoles above 0.01 mg/kg). Frequent occurrence was found also for chloroacetanilide TPs (25% of soils), fenpropidin (20%) and diflufenican (17%). With the exception of triazinesxxx negative correlation to soil pH, no clear relationships were found between pesticide occurrence and soil properties. Association of simazine TPs with terbuthylazine and its target crops proved the frequent residues of this banned compound originate from terbuthylazine impurities. In contrast, frequent atrazine-2-hydroxy residue is probably a legacy of high atrazine usage in the past. The occurrence and levels of compounds were closely associated with their solubility, hydrophobicity and half-life. The results showed links to CR water-monitoring findings. This study represents the first extensive survey of multiple pesticide residues in Central European arable soils, including an insight into their relationships to site and pesticide properties. (C) 2017 Elsevier B.V. All rights reserved.
Autor/innen der BOKU Wien:
Brandstätter-Scherr Kerstin
BOKU Gendermonitor:


Find related publications in this database (Keywords)
Arable soil monitoring
Multi-residue pesticide analysis
Currently used pesticides
Pesticide transformation products
Triazine herbicides
Conazole fungicides


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