2016—2020年镇江地区大气PM_(2.5)中金属及类金属健康风险评估  

Health risk assessment of metals and metalloids in PM_(2.5)in Zhenjiang,Jiangsu province from2016 to 2020

作　　者：宋寅生[1] 谭云仙 陶俊杰[1] SONG Yin-sheng;TAN Yun-xian;TAO Jun-jie(Analysis Department of Zhenjiang Center for Disease Control and Prevention,Zhenjiang,Jiangsu 212004,China;不详)

机构地区：[1]镇江市疾病预防控制中心检验科,江苏镇江212004 [2]镇江市丹徒区疾病预防控制中心质量管理科

出　　处：《环境与健康杂志》2024年第12期1056-1060,共5页Journal of Environment and Health

摘　　要：目的探讨2016—2020年镇江地区大气PM_(2.5)中金属及类金属元素的含量变化和健康风险。方法在2016年1月至2020年12月期间收集423个PM_(2.5)样品。采用电感耦合等离子体质谱法分析铝(Al)、锰(Mn)、镍(Ni)、铬(Cr)、砷(As)、镉(Cd)、锑(Sb)、汞(Hg)、铅(Pb)、硒(Se)和铊(Tl)等11种元素含量。基于水晶球模型,使用蒙特卡洛不确定性分析动态评估其健康风险。结果监测期间,PM_(2.5)平均浓度为(57.7±30.8)μg/m^(3),呈逐年下降趋势,季节分布变化显著。PM_(2.5)样品中11种元素的浓度为(0.18±0.15)μg/m^(3),其中Al含量最高。经过10000次模拟,11种元素的总危害商数平均值为0.8096,平均致癌风险为1.68×10^(-5),存在一定的致癌风险。结论本次调查的镇江地区近年来空气质量有所改善,但应重视元素Al和As的健康风险。Objective To understand the changes and health risks of metal and metalloid elements in PM_(2.5)in Zhenjiang area from 2016 to 2020.Methods In the present study,423 PM_(2.5)samples were collected from January 2016 to December 2020,eleven elements,including Al,Mn,Ni,Cr,As,Cd,Sb,Hg,Pb,Se and Tl,were analyzed by inductively coupled plasma mass spectrometry and based on the Crystal Ball model,the health risks were assessed dynamically using Monte Carlo uncertainty analysis.Results The mean PM_(2.5)level was(57.7±30.8)μg/m^(3),with a tendency of yearly decreasing and a significant seasonal distribution variation.The concentration of 11 elements in the PM_(2.5)samples was(0.18±0.15)μg/m^(3).Al was the highest element After 10000 simulations,the mean value of the hazard index for eleven elements was 0.8096.The average carcinogenic risk was 1.68×10^(-5),which indicated that the non-carcinogenic risk could be ignored and there was certain carcinogenic risk.Conclusion Considerable attention should be paid to the potential health risks associated with long-term Al and As exposure.This study provides detailed data on local atmospheric pollution characteristics,which found that the air quality had been improved in recent years.

关 键 词：PM_(2.5) 元素 长期监测 健康风险评估 镇江 

分 类 号：R122.2[医药卫生—环境卫生学]