34.1% of nut samples contain pesticide residues, and 25.0% samples with multiple residue (up to 5).
17 pesticides were detected, the most frequently detected was fenpropathrin.
15.9% samples exceeded the MRLs set by China.
The residue level of pinenut was higher than chestnut and walnut.
The cumulative risk was highest for pyrethroids and organophosphates.