Chronic health risk assessment on metal elements in atmospheric PM2.5 in Wucheng District / 预防医学
Journal of Preventive Medicine
;
(12): 23-27, 2019.
Article
in Chinese
| WPRIM
| ID: wpr-815684
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Etiology study
/
Risk factors
Language:
Chinese
Journal:
Journal of Preventive Medicine
Year:
2019
Type:
Article
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