Evaluation of selected plant growth regulators and fungicide residues in fruits for dietary risk assessment
2016
Liu, Shaoying | Huang, Xihui | He, Huali | Jin, Quan | Zhu, Guonian
A total of 96 samples of fresh fruits were collected to investigate the residues of selected plant growth regulators and fungicides. The analyses utilized ultra-high-performance liquid chromatography coupled with tandem mass spectrometry after a modified QuEChERS method. The results were evaluated according to maximum residue limits (MRLs) by the Chinese regulation. All blueberries, litchis, and watermelons were pesticide-free, and only one (1%) fruit sample contained pesticide residues above MRLs. Concerning the most frequently detected pesticide residues, carbendazim was found in 20% of the samples analyzed. Data obtained were then used to estimate the potential health risks associated with the exposures to these pesticides. The short-term risks were below 3.25% and the long-term risks were also very low, ranging from 0.0005% for dimethomorph to 0.4302% for prochloraz.
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