Concentrations of toxic heavy metals in ambient particulate matter in an industrial area of northeastern China |
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| Authors: | Fengyuan Piao Xiance Sun Shuang Liu and Toru Yamauchi |
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| Institution: | (1) Department of Occupational and Environmental Health, Dalian Medical University, Dalian, 116044, China;(2) Department of Public Health, School of Medicine, Mie University, Tsu 514-8507, Japan |
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| Abstract: | This paper investigates concentrations of various heavy metals in ambient particulate matter (PM) and provide evidence for
prevention from air pollution. The concentrations of heavy metal components in the PM were determined by inductively coupled
plasma/Mass spectrometry (ICP/MS) from September 2000 to August 2002 in a northeast industrial city in China. Concentrations
of Cd, Mn, Pb, Ni, Cr and As in the PM were 9.3, 461.9, 588.7, 69.5, 205.7 and 57.4 ng/m3 in the industrial area, and 5.7, 245.5, 305.0, 31.4, 58.8 and 32.5 ng/m3 in the main road, respectively. Concentrations of these heavy metals except Cd were significantly higher in the industrial
area and main road than those in the suburban area (P < 0.05 or P < 0.01). The change curves of the six heavy metal concentrations show their concentrations increased in the winter and spring,
but decreased in the summer and autumn. The results indicate that concentrations of the metals in the PM are relatively high
in the industrial area and main road.
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Translated from Journal of Dalian Medical University, 2007, 29(4): 332–335 译自: 大连医科大学学报] |
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| Keywords: | air pollution particulate matter heavy metals |
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