Health risk assessment of Pb emissions from MSW incineration plants

doi:10.7523/j.issn.2095-6134.2014.03.017

Abstract

Abstract:

Atmospheric concentration of Pb from MSW incineration plants in the studied city was estimated by using CALPUFF model, and then inhalational health risk was assessed. The results indicate that, affected by local meteorological conditions and terrain, the concentration distribution shows significant seasonal variations and topography-dependent characteristics. In autumn and winter, Pb diffuses widely and spreads mainly in the southwest part of the city, with the maximal concentrations of 7.9 × 10^-3 and 7.0 × 10^-3 μg/m³, respectively. The diffusion area is relatively small in spring and summer, with the maximum values of 5.4 × 10^-3 and 7.5 × 10^-3 μg/m³, respectively, in the central region. The inhalational risk distribution is consistent with Pb concentration distribution. Children's exposure risk is nearly 2 times of the risk of adults, and males have slightly higher risk than females. The risk is negligible, compared with the risk reference recommended by USEPA, and it is even less than 4% of the background risk..

Key words: CALPUFF model, MSW incineration, Pb, health risk assessment

CLC Number:

X822

LIAO Zhiheng, REN Mingzhong, SUN Jiaren, FAN Shaojia, WU Dui. Health risk assessment of Pb emissions from MSW incineration plants[J]. , 2014, 31(3): 410-417.

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