普通白菜中4种常用农药残留及风险评估

Residue and Risk Assessment of Four Pesticides in Common Chinese Cabbage

采集安徽部分地区批发市场258组普通白菜样品,运用风险评估模型,对普通白菜中啶虫脒、阿维菌素、克百威和毒死蜱4种常用农药残留进行风险评估。结果表明,在参试的258组普通白菜中,203组(占比78.7%)样品中检出农药残留,2组样品中啶虫脒超标,1组样品中毒死蜱超标。在检出的4种常用农药中啶虫脒的检出率最高,达到54.6%;阿维菌素检出率为12.4%;克百威和毒死蜱检出率均低于10%;4种农药残留的均值依次为啶虫脒(0.099 0 mg/kg)>阿维菌素(0.0034 mg/kg)>毒死蜱(0.002 9 mg/kg)>克百威(0.001 2 mg/kg)。72.2%的样品中含有1种农药;4.2%的样品中检测含有2种农药;2.4%的样品中含有3种农药,普通白菜的IFS<1。综上所述,普通白菜的啶虫脒检出率较高,99.2%的样品农药残留量低于最大残留量,检测的农药残留处于风险程度范围内,不存在安全风险。

We collected 258 cabbage samples from some areas＇ wholesale markets of Anhui Province ,detected and analyzed 4 pesticide residues （acetamiprid, abamectin,carbofuran and chlorpyrifos）in common Chinese cabbage by building a risk assessment model.The results showed that 203 samples （78.7%）had detectable residues, 2 samples acetamiprid exceeded the standard, 1 sample chlorpyrifos exceeded the standard. In the 4 commonly used pesticides, the detectable rate of acetamiprid was the highest,which was 54.6% ;the detectable rate of abamectin was 12.4% ,the detectable rate of carbofuran and chlorpyrifos were both below 10% .The mean residual concentrations of the 4 pesticides in samples were in the following order： aeetamiprid （ 0.0990mg/kg ） 〉abamectin （ 0.003 4mg/kg） 〉chlorpyrifos （ 0.002 9 mg/kg） 〉carbofuran （0.001 2 mg/kg ） .72.2% of samples had one residues, 4.2% of samples had two residues ,2.4% of samples had three residues, the 1FS of cabbage was less than 1. In conclusion, acetamiprid in common Chinese cabbage had a relatively high detectable rate.Nevertheless, the residual concentration of 99.2% samples tested were under maximum residue limits.The residues detected were within the range of risk, and there was no security risk.