中文摘要：

通过采集临汾市居民普遍食用的10种蔬菜,利用气相色谱-质谱联用仪（GC-MS）进行检测.研究结果表明,滴滴涕和六六六在10种蔬菜中均有检出,∑DDTs的残留量为1.67~6.68 ng·g~（-1）,∑HCHs的残留量为0.43~4.75 ng·g~（-1）,其中含量最高的是西葫芦（∑_（10）OCP为（8.73±0.75）ng·g~（-1））.采用农粮组织和世界卫生组织（FAO/WHO）规定的可接受的每日摄取量（ADI）来进行暴露量分析,平均而言,各年龄段人群对γ-HCH和DDTs的日均口摄暴露量（EDI）值远低于FAO/WHO所规定的ADI值.由于食物残留浓度、个体体重及膳食结构变异较大,导致个体暴露水平差别较大,儿童的EDI值要高于同性别的其他年龄段人群,同一年龄段女性的EDI值普遍高于男性.通过美国环境保护局（USEPA）提出的潜在风险评价,对致癌和非致癌的健康危害分别进行评价,在目前的消费量下临汾居民食用蔬菜引起的非致癌风险较低,食用蔬菜而摄入的HCHs对人体具有潜在的致癌风险,其中儿童作为易感人群的致癌风险更高.

英文摘要：

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 ∑_（10）OCP of（ 8. 73 ± 0. 75）ng·g~（-1）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.