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Pollution Characteristics and Health Risk Assessment of Heavy Metals in PM2.5 Collected in BaodingChinese Full TextEnglish Full Text (MT)

LEI Wen-kai;LI Xing-ru;ZHANG Lan;XU Jing;ZHAO Wen-ji;LIU Zi-rui;College of Resource Environment and Tourism,Capital Normal University;Department of Chemistry,Capital Normal University;Institute of Environmental Reference Materials,Environmental Development Center,Ministry of Ecology and Environment;Institute of Atmospheric Physics,Chinese Academy of Sciences;

Abstract: To reveal the pollution characteristics and the health risks of the trace heavy metals in the atmospheric particles in Baoding,Hebei province,PM2.5 samples were collected using a middle volume sampler,and the mass concentrations of V,Cr,Mn,Co,Ni,Cu,Zn,As,Cd,and Pb in the samples were determined by microwave digestion-inductively coupled plasma-mass spectrometry( ICPMS). The results showed that the PM2.5 concentration in Baoding ranged from 16. 84-476. 2 μg·m-3. During sampling,65 samples were above the second-level standard of the Ambient Air Quality Standards( GB 3095-2012) by 54. 2%. The most heavy metal elements showed higher levels in nighttime than during the daytime,except for except for Ni,Mn,and Co. Obvious seasonal variation was found with the trend of winter > autumn > spring > summer. The enrichment factors for Cu,Zn,Pb,and Cd were more than 1. 5,indicating that those metals mainly came from anthropogenic emissions,such as traffic sources. Health risk assessment results indicated that the non-carcinogenic risk of heavy metals in PM2.5 in Baoding was small,and the carcinogenic risk resulting form As,Cr,Cd,and Co was greater for adults than for children.
  • DOI:

    10.13227/j.hjkx.202004230

  • Series:

    (B) Chemistry/ Metallurgy/ Environment/ Mine Industry

  • Subject:

    Environment Science and Resources Utilization

  • Classification Code:

    X513;X820.4

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