Dataset Information

Residue level, occurrence characteristics and ecological risk of pesticides in typical farmland-river interlaced area of Baiyang Lake upstream, China.

ABSTRACT: Baiyang Lake is the largest freshwater lake in North China, playing an important role in aquatic products production and eco-environment improvement. Traditional organochlorine pesticides were not enough to reflect ecological risk. We performed the high-throughput and non-targeted screening to identify the high-residue and wide-distribution pesticides at farmland-river interlaced area. We firstly reported the residue level and spatio-temporal distribution of typical pesticides in soils and waters (SP1-SP13) near Fuhe river in 2020-2021. The mean recoveries of eight pesticides ranged from 79.4 to 129%. The residues were 0.250-3530 ng/L (water) and 2.79 × 10^-3-647 μg/kg dw (soil), respectively. Thiamethoxam was dominant with the high-residue proportion (HRP) of 53-95% (water, HRP > 50%) and 63-97% (soil, HRP > 60%), respectively. Most of pesticides almost have no significant season-change. The risk quotient (RQ) model results showed that although most pesticides have no aquatic risk (RQ < 0.01), carbendazim and propionazole deserved attention. The individual thiamethoxam at nearly half of the sites exhibited high terrestrial risk (RQ, 1.070-1.682), while propiconazole was at medium risk (SP1, SP2, SP8, and SP9) and high risk (SP12). The RQ_all were in the range of 0.4541-3.327 (earthworm), 0.0239-0.4552 (algae), 0.1094-1.103 (aquatic invertabrates), and 0.1657-1.923 (fish), respectively, so co-residue caused joint toxic effect to aquatic invertebrates.

SUBMITTER: Sun X

PROVIDER: S-EPMC9283526 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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Residue level, occurrence characteristics and ecological risk of pesticides in typical farmland-river interlaced area of Baiyang Lake upstream, China.

Sun Xiaoli X Liu Miao M Meng Jianwei J Wang Liping L Chen Xiaoxin X Peng Shan S Rong Xin X Wang Lei L

Scientific reports 20220714 1

Baiyang Lake is the largest freshwater lake in North China, playing an important role in aquatic products production and eco-environment improvement. Traditional organochlorine pesticides were not enough to reflect ecological risk. We performed the high-throughput and non-targeted screening to identify the high-residue and wide-distribution pesticides at farmland-river interlaced area. We firstly reported the residue level and spatio-temporal distribution of typical pesticides in soils and water ...[more]

PMID: 35835839

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Dataset Information

Residue level, occurrence characteristics and ecological risk of pesticides in typical farmland-river interlaced area of Baiyang Lake upstream, China.

Publications

Residue level, occurrence characteristics and ecological risk of pesticides in typical farmland-river interlaced area of Baiyang Lake upstream, China.

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