Residual levels and dietary exposure risk assessment of banned pesticides in fruits and vegetables from Chinese market based on long-term nontargeted screening by HPLC-Q-TOF/MS

The negative impact of banned pesticides is of special importance for their high toxicity. In this study, nationwide screening of banned pesticides in 37462 fruit and vegetable samples was carried out from 2012 to 2018 using a self-developed HPLC-Q-TOF/MS technique. The dietary exposure risks associ...

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Bibliographic Details
Published in:Ecotoxicology and environmental safety 2022-12, Vol.248, p.114280, Article 114280
Main Authors: Liang, Shu-xuan, Li, Hui, Chang, Qiaoying, Bai, Ruobin, Zhao, Zhe, Pang, Guo-fang
Format: Article
Language:English
Subjects:
Banned pesticides
Dietary exposure
HPLC-Q-TOF/MS
Residual level
Risk assessment
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Summary:The negative impact of banned pesticides is of special importance for their high toxicity. In this study, nationwide screening of banned pesticides in 37462 fruit and vegetable samples was carried out from 2012 to 2018 using a self-developed HPLC-Q-TOF/MS technique. The dietary exposure risks associated with the banned pesticides were assessed. The results showed that 66.62 % of the samples were detected at least one pesticide. Among the pesticide-positive samples, a total of 18 banned pesticides were detected in 1798 samples for 1896 times. The risk assessment revealed that 11.71 % of the positive detections exceeded the safety limits and posed an unacceptable risk, while 37.29 % of the positive detections posed acceptable risks. According to the screening and assessment results, two national maps were presented to show the total detection ratios of the banned pesticides and the unacceptable risks of dietary exposure. It should be noted that omethoate had higher residual concentration, unacceptable risk frequency and unacceptable risk proportion. This is the first nationwide comprehensive report on screening and risk assessment banned pesticides. [Display omitted] •Out of 37462 fruits and vegetables, 18 banned pesticides were detected 1896 times.•Omethoate, phorate and carbofuran posed relatively high risks.•National maps of the detection ratios and risk levels of the banned pesticides are presented.•This is the first comprehensive nationwide survey on banned pesticide residue hazards.
ISSN:0147-6513
1090-2414
DOI:10.1016/j.ecoenv.2022.114280