中文

Journal of Shanghai University（Natural Science Edition） ›› 2016, Vol. 22 ›› Issue (6): 784-792.doi: 10.3969/j.issn.1007-2861.2016.05.006

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PM2.5 and its heavy metal contents in Shanghai and the assessment of health risk to residents

ZHANG Chunchun1,2, HE Chiquan1   

  1. 1. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China;
    2. Shanghai Putuo District Environmental Monitoring Station, Shanghai 200062, China
  • Received:2016-04-15 Online:2016-12-30 Published:2016-12-30

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Abstract:

PM2.5 concentration and its heavy metal contents in a typical mixing area in Shanghai with industrial units and residents were monitored from summer to winter. The trend of PM2.5 concentration and its heavy metal contents were found. Human exposure health risk assessment method was used to evaluate potential health risk of PM2.5 concentration and its heavy metal contents. The results showed that PM2.5 concentration in residential sites was equal to the average value of Shanghai. Pollution levels in each point showed a strong seasonal pattern, which was significantly higher in winter than in summer and in autumn. Concentrations of Pb and Cd did not exceed the standard limit, but that of As was more than doubled compared to the standard. Both non-cancer risk and cancer risk of heavy metal exposure were at an acceptable level, without increasing health risks to local residents.

Key words:  health risk assessment,  heavy metal , PM2.5