Abstract：Objective To investigate the characteristics and the chronic health risks of metals in fine particulate matter（PM2.5） of Wucheng District,Jinhua .Methods The PM2.5 samples were collected in Wucheng District of Jinhua from the year 2015 to 2017.Chromium(Cr),manganese (Mn),nickel(Ni),arsenic(As),selenium(Se),cadmium(Cd),antimony(Sb),lead(Pb),beryllium(Be),aluminum(Al),thallium（Tl）and mercury（Hg） were measured by inductively coupled plasma mass spectrometry（ICP-MS）. The health risks of the metals were assessed based on the standard method recommended by United States Environmental Protection Agency .Results From 2015 to 2017,the average concentration of PM2.5 in Wucheng District was（53.42±26.95）μg/m3,and the average concentration of PM2.5 in each season and each year were significantly different（P<0.05）. The median（interquartile range）concentration of metal elements in PM2.5 was 136.66（117.14）ng/m3,with higher concentration of Al,Pb,Mn,Cd and Se. From 2016 to 2017,the average concentration of Cd exceeded the reference limit（5.00 ng/m3）. The median （interquartile range） concentration of metal elements in PM2.5 in winter was 175.12（132.45）ng/m3,the highest,and in summer was 92.55（52.81）ng/m3,the lowest. The total hazard quotient（HQ）of nine kinds of metal elements in PM2.5 was 2.90;the HQ of As,Be,Ni,Se,Hg,Al,Mn and Sb were all less than 1,except Cd. The total carcinogenic risk of five kinds of metal elements in PM2.5 was more than 10-6,among which the carcinogenic risk of As and Cd were more than 10-6,and the carcinogenic risk of Be,Pb and Ni were less than 10-6 .Conclusion The concentrations of Al,Pb,Mn,Cd and Se in PM2.5 of Wucheng District were higher and the concentration of Cd exceeded the reference limit. The non-carcinogenic and carcinogenic risk of Cd were both higher,the carcinogenic risk of As was also higher.
何晓庆, 罗进斌, 王祚懿, 盛微. 婺城区大气PM2.5金属元素污染的慢性健康风险评估[J]. 预防医学, 2019, 31(1): 23-27.
HE Xiao-qing, LUO Jin-bin, WANG Zuo-yi, SHENG Wei. Chronic health risk assessment on metal elements in atmospheric PM2.5 in Wucheng District. Preventive Medicine, 2019, 31(1): 23-27.
WANG X,HE S,CHEN S,et al.Spatiotemporal characteristics and health risk assessment of heavy metals in PM2.5 in Zhejiang province[J]. International Journal of Environmental Research & Public Health,2018,15(4):583.
[14]
LIU R,ZENG J,JIANG X,et al.The relationship between airborne fine particle matter and emergency ambulance dispatches in a southwestern city in Chengdu,China[J]. Environmental Pollution,2017,229:661-667.
LI P,XUE L Y,WANG S L,et al.Pollution evaluation and health risk assessment of heavy metals from atmospheric deposition in Lanzhou[J]. Environmental Science,2014,35(3):1021-1028.
[17]
CHEN P,BI X,ZHANG J,et al.Assessment of heavy metal pollution characteristics and human health risk of exposure to ambient PM2.5 in Tianjin,China[J]. Particuology,2015,20:104-109.
[18]
LI K,LIANG T,WANG L.Risk assessment of atmospheric heavy metals exposure in Baotou,a typical industrial city in northern China[J]. Environ Geochem Health,2015,38(3):843-853.
World Health Organization,International Agency for Research on carcinogenic. Agents Classified by the IARC Monographs,vol.1-116[EB/OL].(2015- 10-31)[2018-05-21]. http://monographs.iarc.fr/ENG/ Classification/latest_classif.php.
