Residue and risk assessment of DDTs and HCHs in vegetables in Linfen

Ten widely consumed vegetables were commercially collected from the market of Linfen, Shanxi province in January 2015. Concentrations of DDTs and HCHs were quantified using gas chromatography⁃mass spectrometry (GC⁃MS). DDTs and HCHs were detectable in all kinds of vegetables. The residual amounts of ∑DDTs and ∑HCHs were 1.67~6.68 ng·g-1 and 0.43~4.75 ng·g-1 respectively, with the highest ∑10OCP of (8.73±0.75) ng·g-1 11 期 周彦池等:临汾市蔬菜中滴滴涕和六六六的残留与风险评价 in zucchini.The daily intakes of γ⁃HCH and DDTs by local residents via vegetables consumption were far below the acceptable amounts suggested by the Food and Agriculture Organization of the United Nations / World Health Organization. Estimated daily intakes highly varied among individuals owing to diversified residual levels after food processing, personal weight and dietary pattern.〛The ingestion exposure of children was higher than other age groups of the same gender. With respect to gender, females had higher exposure doses than males in all age groups. Potential risk assessment demonstrated a non⁃ cancer low risk for local residents under the current amount of vegetable consumption, whereas cancer risks due to HCHs⁃exposure exceeded the acceptable levels for all groups. Cancer risks were the highest on children