济南市食品中短、中链氯化石蜡的污染特征及摄入风险评估

为了解济南市市场中短链氯化石蜡(C_10-13, short-chain chlorinated paraffins, SCCPs) 与中链氯化石蜡(C_14-17, medium-chain chlorinated paraffins, MCCPs)在食品中的分布现状与摄入风险，于2020年在济南市采集了82种不同类别食品样品，采用氯强化大气压化学电离源-四级杆飞行时间质谱检测方法分析。结果表明：食品样本中SCCPs湿重含量范围是5.3~2 483.2 ng/g；MCCPs湿重含量范围是4.6~605.1 ng/g；花生油SCCPs平均湿重含量最高，为2 115.5 ng/g；苦瓜SCCPs平均湿重含量最低，为5.7 ng/g；豆油MCCPs平均湿重含量最高，为605.5 ng/g；白菜MCCPs平均湿重含量最低，为6.2 ng/g；SCCPs的每日摄入量(estimated daily intake，EDI)在主食类食品中最高, 为2619.2 ng/(kg ·d)，在水产类食品中最低，为17.7 ng/(kg ·d)；MCCPs的EDI在主食类食品中最高，为2 117.6 ng/(kg ·d)，在水产类食品中最低为12.1 ng/(kg ·d)；济南市居民SCCPs、MCCPs的危害系数(hazard quotients，HQ)分别为0.022~0.067和0.017~0.047，HQ＜1说明暴露风险较低。本研究为评估济南市人群暴露于CPs的风险提供了参考数据。

Pollution characteristics and intake risk assessment of short and medium-chain chlorinated paraffins in foods in Jinan

To explore the distribution status and intake risk of short-chain chlorinated paraffins (C_10-13, SCCPs) and medium-chain chlorinated paraffins (C_14-17, MCCPs) in food in Jinan city, 82 kinds of food were collected in Jinan in 2020 and analyzed by chlorine enhanced atmospheric pressure chemical ionization source- four-stage pole time-of-flight mass spectrometry. The results showed that the concentration of wet weight of SCCPs in food samples ranged from 5.3 to 2 483.2 ng/g, MCCPs ranged from 4.6 to 605.1 ng/g. The concentration of wet weight of SCCPs in Peanut oil was the highest, which was 2 115.5 ng/g. The concentration of wet weight of SCCPs in balsam pear was the lowest, which was 5.7 ng/g. The concentration of wet weight of MCCPs in soybean oil was the highest, which was 605.5 ng/g. The concentration of wet weight of MCCPs in Chinese cabbage was the lowest, which was 6.2 ng/g. The estimated daily intake (EDI) of SCCPs was the highest in staple foods, which was 2 619.2 ng/(kg ·d) and the lowest in aquatic foods, which was 17.7 ng/(kg ·d). The EDI of MCCPs was the highest in staple foods, which was 2 117.6 ng/(kg ·d), and the lowest in aquatic foods, which was 12.1 ng/(kg ·d). The hazard quotients (HQ) of SCCPs、MCCPs was 0.041 and 0.032, respectively. The purpose of this study was to provide reference data for the assessment of the risk of exposure to CPs among the population in Jinan.