10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
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Pollution Characteristics and Health Risk Assessment of Heavy Metals in Particulate Matter in Changchun, Northeast China
LI NA, Sun Siyue, Han Weizheng, Kang Chunyu, Jilin Jianzhu University, China
Abstract Number: 1014 Working Group: Aerosol Chemistry
Abstract In order to study the risk to human health caused by the concentrations of different particulate matter and the heavy metals attached to it in JingYue area in Changchun City. Samples of PM1 were collected by MVS sampler (German), PM2.5、PM5、PM10 and TSP were collected by medium flow sampler（Qingdao）at the top of civil engineering building of Jilin Jianzhu University from April to June in 2017.The concentrations of 8 heavy metals (Pb, Cd, Cr, Ni, V, Co, Sb, Mn) and Al were determined by ICP-OES, enrichment factor method was used to determine the enrichment degree of eight heavy metals, the health risk assessment models from USEPA was further used to evaluate the health risk of the population.The results showed that the concentrations of particulate matter exceeded the standard in different degrees, and the heavy metals of Cd and Pb exceeded the relative standards in all sizes of particulate matter, the concentration of Sb is obviously higher than that of other heavy metals. Enrichment factor analysis showed that the 8 heavy metals were enriched, among them, Cd, Pb and Sb were enriched extremely serious, EF values were between 102 and 105, EF values of Co and Cr were between 102 and 103, EF of Mn, Ni and V were less than 100. The HQ values of Cd, Cr, Ni, V, Mn and Sb, were respectively less than 1, indicating the non-carcinogenic risk may be acceptable. The R values of Pb, Cd, Cr and Ni were less than 10-6, indicating the carcinogenic risk was acceptable. Risk values from ingestion exposure pathway were higher than those of skin exposure and respiratory inhalation.