Residual characteristics and potential integrated risk assessment of synthetic pyrethroids in leafy vegetables from Zhejiang in China – Based on a 3-year investigation

•19% leafy vegetable samples contained synthetic pyrethroids.•81 samples were detected with more than 2 SPs.•The detection rate of the individual SP tended to show a downward trend.•Dietary exposures of synthetic pyrethroids in leafy vegetables were acceptable.