Risk Evaluation of Pesticide Residue in Strawberries

Abstract

In order to identify the types of pesticide residues and the maximum residue limit (MRLs) values in strawberries, the national estimated daily intake and short-term intake were used to assess the risk of pesticide residues in different populations, respectively. Meanwhile, the existing pesticide MRLs standard was used to evaluate the consumer protection level, and the risk ranking matrix was used to rank the risk of detected pesticides.The results showed that a total of 14 pesticides in all strawberries were detected with a detection rate of 4.5%~72.7%; of these, 1 exceeded their MRLs, which was found in 2.3% of the samples. However, there are pesticides that are not registered in Strawberries production but are used.In different age groups, the risk of chronic and acute dietary intake of Strawberries pesticide residues is less than 100%, and the risk is acceptable. The consumer protection level for chronic dietary risk (CPLc) of the existing pesticide MRLs for different age groups was 6.2~7254.4. It is greater than 1, so the risk protection has reached an acceptable level. The consumer protection level for acute dietary risk (CPLa) of the existing pesticide MRLs for different age groups was 0.3~1290.0. However, the risk is unacceptable. The CPLa of procymidone is less than 1 among children aged 2~4 years, women aged 18~30 years and 60~70 years. Moreover, the CPLa of pyraclostrobine ether ester is less than 1 among children aged 2~4 years. It is suggested that the MRL of procymidone and pyraclostrobine ether ester in Strawberries should be revised to 3.5 mg / kg and 1 mg / kg. According to the results of risk assessment, more attention should be focus on the pesticide residues of procymidone, acetamiprid, boscalid, pyraclostrobine, bifenazate, carbendazim, Imidacloprid, difenoconazole, triadimefon and chlorothalonil in Strawberries.