Study on pollution characteristics and toxic effects of fine particulate matter in Harbin, China
HUANG Li-kun1,2, XU Yuan-yuan1, WANG Guang-zhi2, WANG Kun2, WANG Wei1, TIAN Tian1
1. School of Food Engineering, Harbin University of Commerce, Harbin 150076, China;
2. School of Environment, Harbin Institute of Technology, Harbin 150090, China
In order to study the pollution characteristics and toxic effects of fine particulate matters in Harbin, we analyzed the distribution characteristics of their mass and number concentration and their effects on lung injury in micewith samples of PM2.5 and PM1.0 in 2017. The results showed that the mass concentration of PM2.5, PM1.0 showed a pattern of high in winter and low in summer; The mass concentration of PM1.0 accounted for 62%~85% of the total mass concentration of PM2.5. The temporal pattern of PM1.0 number was lower in the middle of the year and higher in both ends, and its number concentration was negatively correlated with the temperature, and there was no significant correlation with the relative humidity. In the study of the effects of atmospheric particulate matter on lung injury in mice, it was found that LDH, ACP, AKP, ALB in lung tissue cells of mice exposed to air particulates increased, indicating that PM2.5 and PM1.0 had toxic effects on lung tissue cells of mice. The level of MDA, NO, NOS in lung lavage fluid increased and the activity of SOD decreased, which indicated that both PM2.5 and PM1.0 caused oxidative damage in the body. With the increase of the mass concentration of PM2.5 and PM1.0 in the air particles, the cytotoxic effect on the lung tissue of mice was enhanced and the degree of oxidative damage was increased.
黄丽坤, 徐媛媛, 王广智, 王琨, 王薇, 田甜. 哈尔滨市大气细颗粒物污染特征及其毒性效应[J]. 中国环境科学, 2019, 39(12): 5326-5332.
HUANG Li-kun, XU Yuan-yuan, WANG Guang-zhi, WANG Kun, WANG Wei, TIAN Tian. Study on pollution characteristics and toxic effects of fine particulate matter in Harbin, China. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(12): 5326-5332.
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