郑州大学学报（医学版）2024，Vol.59Issue(2)：216-221,6.DOI:10.13705/j.issn.1671-6825.2023.02.070
郑州市2020～2021年大气PM2.5中金属元素污染特征及健康风险评估
Pollution characteristics and health risk assessment of metal elements in PM2.5 in Zhengzhou from 2020 to 2021
摘要
Abstract
Aim:To analyze the concentration levels of metal elements in atmospheric PM2.5 in two urban areas of Zhengzhou from 2020 to 2021,speculate the possible sources and assess the health risks.Methods:The concentrations of PM2.5 and its metal elements in Erqi District and Jingkai District of Zhengzhou from 2020 to 2021 were determined,and the enrichment factor(EF)method and principal component analysis were used to estimate the metal elements sources.The health risks of metals in PM2.5 through inhalation were assessed according to the relevant technical guidelines.Results:The concentration of PM2.5 in Erqi District and Jingkai District of Zhengzhou from 2020 to 2021 was 50.00(38.00,72.50)and 53.00(40.00,74.50)μg/m3,respectively.There was no significant difference in the concentration of each metal element between the two urban areas(P>0.05).The EF values of Mn and Ni in PM2.5 in the two urban areas were between10 and 100,and the EF values of the remaining metal elements were larger than 100.Two principal components were screened from both urban areas,component 1 included Se,Sb,Pb,Tl,As,Cd,and Ni,and component 2 included Al and Mn.The non-car-cinogenic risk hazard quotient values of metal elements in atmospheric PM2.5 in the two urban areas were less than 1,and the carcinogenic risks of As in Erqi District and Jingkai District were 2.20×10-5 and 2.41×10-5,and the carcinogenic risks of Cd were 1.55×10-6 and 1.71×10-6,respectively.Conclusion:Zhengzhou is still polluted by PM2.5,and As and Cd in PM2.5 pose potential carcinogenic risks.关键词
PM2.5/金属元素/健康风险评估/郑州Key words
PM2.5/metal element/health risk assessment/Zhengzhou分类
医药卫生引用本文复制引用
靳超美,阙菡雅,吴雯,焦琳琳,周蓉,田梅,张思雨,陈彦哲,周舫..郑州市2020～2021年大气PM2.5中金属元素污染特征及健康风险评估[J].郑州大学学报（医学版）,2024,59(2):216-221,6.基金项目
河南省自然科学基金项目(222300420537) （222300420537）
郑州大学大学生创新创业训练计划项目(2022cxcy582) （2022cxcy582）
