Home > Archive>Volume 43, Issue 6, 2024 >297-306. DOI:10.13300/j.cnki.hnlkxb.2024.06.029
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Residues and risk assessment of pesticides in integrated rice-crayfish co-culture systems in Hubei Province
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Affiliation:

1.Yangtze River Fisheries Research Institute， Chinese Academy of Fishery Sciences， Wuhan 430223， China;2.Baotou Branch of the General Environmental Monitoring Station of Inner Mongolia Autonomous Region， Baotou 014060， China;3.Chinese Academy of Fishery Sciences， Key Laboratory of Control of Quality and Safety for Aquatic Products， Ministry of Agriculture， Beijing 100141， China

Clc Number:

S966.12

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    Abstract:

    The residues of 19 pesticides in integrated rice and Procambarus clarkii breeding environments in Hubei Province were investigated， and the ecological risk and dietary risks associated with P. clarkii in paddy fields were assessed. The results showed that three pesticides， β-666， δ-666 and endrin， were detected in the water samples from 22 sites of rice and P. clarkii farming， but most of these residues were attributed to earlier environmental residues. Four types of pesticides were detected in P. clarkii samples， with one source linked to pesticide application on rice， and another related to the feed of P. clarkii. The order of dietary risk values for P. clarkii was hexachlorobenzene > HCHS > DDTs > pendimethalin， with the dietary intake risks ranging from 0.002% to 0.206%. Therefore， the levels of pesticide residues in the rice and P. clarkii breeding environments in Hubei Province are within a safe range， but the potential dietary risks associated with multi-route and long-term pesticide exposure to crawfish warrant ongoing attention.

    Fig.1 RQ values of pesticides in water environment at the sampling site
    Table 1 Sampling points in the rice-shrimp integrated farming areas in Hubei Province
    Table 2 The limits of detection （LOD） and limit of quantitation （LOQ） of 19 pesticides
    Table 3 Ecological risk parameters of pesticides in water
    Table 5 Risk assessment of pesticides in P. clarkii
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杨秋红,皇甫鑫,郑瑜,董靖,艾晓辉. Residues and risk assessment of pesticides in integrated rice-crayfish co-culture systems in Hubei Province[J]. Jorunal of Huazhong Agricultural University,2024,43(6):297-306.

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History
  • Received:March 15,2024
  • Online: January 07,2025
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