火龙果农药残留膳食摄入风险评估

Risk Assessment of Dietary Intake of Pesticide Residues in Pitaya

了解7个产区火龙果的农药残留情况,并进行农药残留风险评估,为火龙果生产上合理使用农药提供参考依据。对7个产区抽取的175份火龙果样品进行113种农药残留检测与分析,并对检出的农药进行农药残留慢性膳食摄入风险(%ADI)评估、急性膳食摄入风险(%ARfD)评估。72份样品检出农药残留(占41.14%),2份样品(1.1%)氧乐果残留值高于我国制定的最大残留限量(MRL)。检出的28种农药的慢性膳食摄入风险(%ADI)范围为0.003%~7.013%,急性膳食摄入风险(%ARfD)范围为0.037%~25.77%。不同年龄人群通过食用火龙果摄入的农药残留慢性膳食摄入风险均小于100%。火龙果的农药残留慢性膳食摄入风险和急性膳食摄入风险均很低,但氧乐果残留超过限量值,在火龙果生产和监管中应重点关注。

To research the pesticide residue situation of pitaya in seven production areas,and carry out pesticide residues risk assessment,so as to provide reference for rational use of pesticides in pitaya production,113 pesticide residues were detected and analyzed in 175 pitaya samples from seven production areas,and the detected pesticide varieties were evaluated for chronic dietary intake risk(%ADI)and acute dietary intake risk(%ARfD).Pesticide residues were detected in 72 sample(41.14%),and 2 samples(1.1%)had omethoate residues higher than the maximum residue limit(MRL).Chronic dietary in-take risk(%ADI)of 28 pesticides detected was ranged from 0.003%to 7.013%,and acute dietary intake risk(%ARfD)was ranged 0.037%from 25.77%.%ADI of pesticide residues ingested by people of different ages by eating pitaya was less than 100%.The risk of pesticide residues in pitaya from chronic and acute dietary intake was very low.However,omethoate resi-due exceeded MRL and should be paid more attention to in the production and supervision of pitaya.