Health Effects of PM₁₀ in the City Group of Beijing, Tianjin and Tangshan

Abstract:

After studying the toxicity of the PM₁₀ samples, collected in the Spring and the Summer of 2010 in Beijing, Tianjing and Tangshan, as well as their water soluble fraction with the method of Plasmid DNA assay and comparing the toxicity differences of PM₁₀ in different regions in different periods, we get the findings: Due to particulate matters’ different resources and complicate components, samples of the same mass concentration have different damage rates. The correlation between mass concentration and damage rate of the samples is not linear, indicating that the degree of particulate matters’ damage will reach a threshold value and then the range of damage will change with the increase of mass concentration under the effect of their complex components. The damage ability of the samples collected in spring is less than that in summer. In spring, the damage ability of particulate matters in Tangshan is the largest, Tianjin the second and the third is Beijing’s particulate matters. In summer, the damage ability of particulate matters in three cities is that Tianjin > Tangshan > Beijing. There is no much difference in toxicity between the samples and their water soluble fraction in the three cities in both spring and summer, which means that the toxicity of particulate matters in the same city under the same meteorological condition is similar to their water soluble fraction, showing that the components of particulate matters that cause the damage are largely water soluble.

• Periodical: Applied Mechanics and Materials (Volumes 522-524)
• Pages: 519-531
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.522-524.519
• Online since: February 2014
• Authors: Shi Hong Cen, Jing Kai Zhang, Shu Shen Yang, Long Yi Shao, Xiao Yan Song
• Keywords: Oxidative Damage, Plasmid DNA, PM₁₀

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