Spatiotemporal distribution patterns and ecological risk of multi-pesticide residues in the surface water of a typical agriculture area in China.

Autor: Li W; School of Life Science, Qufu Normal University, Qufu 273165, PR China., Wang B; School of Life Science, Qufu Normal University, Qufu 273165, PR China., Yuan Y; School of Life Science, Qufu Normal University, Qufu 273165, PR China., Wang S; School of Life Science, Qufu Normal University, Qufu 273165, PR China. Electronic address: wangshiliang@tsinghua.org.cn.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2023 Apr 20; Vol. 870, pp. 161872. Date of Electronic Publication: 2023 Jan 27.
DOI: 10.1016/j.scitotenv.2023.161872
Abstrakt: This study systematically investigated the occurrence, spatiotemporal distribution, and ecological risk of 106 pesticides in the surface water of the Jiaodong Peninsula in China. The results show that 52 pesticides, including 21 insecticides, 10 fungicides, and 21 herbicides, were detectable in the surface water. The concentrations of target pesticides in water samples ranged from 0.42 (tebuconazole in the wet season) to 645.31 ng/L (thiamethoxam in the normal season). The two most polluting and widespread pesticides were quintozene (maximum concentration of 481.46 ng/L and detection rate of 94 %) and atrazine (maximum concentration of 465.73 ng/L and detection rate of 100 %). The total pesticide concentrations in surface water in different seasons revealed the order of dry season > wet season > normal season. Based on aquatic pesticide concentrations, their frequency of occurrence, and effect concentrations, insecticides posed higher risks to aquatic organisms and human health than either fungicides or herbicides. Total pesticide concentrations were significantly positively correlated with suspended particulate matter, dissolved organic carbon, soil pH, normalized difference vegetation index, adjacent cropland area; and were negatively associated with adjacent grassland area. The cropland area largely influences pesticide distribution in the surface water of the Jiaodong Peninsula.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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