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百菌清、腈菌唑和吡唑醚菌酯在草莓中的残留及其风险评估
引用本文:张志恒,李红叶,吴珉,袁玉伟,胡秀卿,郑蔚然.百菌清、腈菌唑和吡唑醚菌酯在草莓中的残留及其风险评估[J].农药学学报,2009,11(4):449-455.
作者姓名:张志恒  李红叶  吴珉  袁玉伟  胡秀卿  郑蔚然
作者单位:1.浙江省农业科学院 农产品质量标准研究所,杭州 310021
基金项目:浙江省科技厅资助项目,杭州市科技攻关计划 
摘    要:为明确在草莓采果期使用百菌清、腈菌唑和吡唑醚菌酯可能产生的膳食安全风险,进行了残留试验及不同人群的膳食暴露和风险评估。在保护地条件下用75%百菌清WP 400倍液 、 40%腈菌唑SC 4 000倍液(66.7 g/hm2)和25%吡唑醚菌酯EC 1 000 倍液(166.7 g/hm2)处理草莓,果实上的原始沉积量分别为39.2、3.4和3.8 mg/kg;半衰期分别为3.76、3.39和4.06 d。采用风险商方法进行评估,喷施百菌清后7 d内的草莓对2~4岁儿童以及1 d内对18~30岁女性的风险都是不可接受的(风险商为1.2~4.6);而喷施腈菌唑和吡唑醚菌酯后0~7 d内的草莓对2~4岁、18~30岁和60~70岁人群的风险都很低(风险商分别为0.003~0.07和0.02~0.36)。因此,建议草莓中腈菌唑和吡唑醚菌酯的最高残留限量值设定为2 mg/kg,安全间隔期均定为3 d;而百菌清则不宜在草莓采果期使用。

关 键 词:草莓    农药残留    风险评估    百菌清    腈菌唑    吡唑醚菌酯
收稿时间:3/5/2009 12:00:00 AM

Residue and Risk Assessment of Chlorothalonil,Myclobutaniland Pyraclostrobin in Greenhouse Strawberry
ZHANG Zhi-heng,LI Hong-ye,WU Min,YUAN Yu-wei,HU Xiu-qing and ZHENG Wei-ran.Residue and Risk Assessment of Chlorothalonil,Myclobutaniland Pyraclostrobin in Greenhouse Strawberry[J].Chinese Journal of Pesticide Science,2009,11(4):449-455.
Authors:ZHANG Zhi-heng  LI Hong-ye  WU Min  YUAN Yu-wei  HU Xiu-qing and ZHENG Wei-ran
Affiliation:1.Institute of Quality and Standard for Agro-products,Zhejiang Academy of Agricultural Science,Hangzhou 310021,China2.College of Agriculture and Biotechnology,Zhejiang University,Hangzhou 310029,China
Abstract:The dietary risk may be introduced by using chlorothalonil,myclobutanil and pyraclostrobin in strawberry picking period.The dietary exposure and risk assessment were conducted based on the field trial data.Under greenhouse conditions,chlorothalonil at a rate of 1 250 g (ai)/hm2,myclobutanil at a rate of 66.7 g (ai)/hm2 and pyraclostrobin at a rate of 166.7 g (ai)/hm2 were applied on the strawberry,with residues 2 h after application in strawberry fruits of 39.2,3.4 and 3.8 mg/kg and with half-life of 3.76,3.39 and 4.06 d,respectively.Risk quotient showed that the risk of chlorothalonil for 2- 4 age children within 7 d PHI (preharvest interval) and for 18-30 age women in 1 d PHI can not be accepted (the risk quotient ranges were 1.2- 4.6); however the risk of myclobutanil and pyraclostrobin for the people age of 2- 4,18-30 and 60-70 were very low within 7 d PHI (the risk quotient ranges were 0.003- 0.07 and 0.02- 0.36,respectively).Maximum residue limit at 2 mg/kg and PHI at 3 d were recommended for myclobutanil and pyraclostrobin in strawberry.Chlorothalonil was not recommenended to be used in strawberry picking period.
Keywords:strawberry  pesticide residue  risk assessment  chlorothalonil  myclobutanil  pyraclostrobin
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