聊城市空气质量现状及污染原因分析

doi:10.11927/j.issn.1673-503X.2016.01.016

Abstract

Abstract: Based on monitoring data of main pollutants in Liaocheng from October of 2013 to September of 2014, temporal and spatial characteristic of all pollutants and their contribution to air pollution were analyzed.Reasons of air pollution in Liaocheng were discussed.The results show that the number of days with light pollution level or above accounts for 70% of the whole year.Concentrations of sulfur dioxide (SO₂), nitrogen dioxide (NO₂), carbon monoxide (CO) and particulate matter (PM) have a similar seasonal variation, and they are significantly higher in winter than in summer.The number of days with PM_2.5 and PM₁₀ as primary pollutants is the greatest in Liaocheng, followed SO₂ in winter.8 hours O₃ concentration as the primary pollutant often occurs in summer.The order of contribution rate for five pollutants is PM_2.5> PM₁₀> NO₂> CO> SO₂, and the contribution rates of PM_2.5 and PM₁₀ are much higher than those of the other pollutants.It suggests that inhalable particulate and fine particles are prevailing in Liaocheng.Correlation analysis shows that PM_2.5 and PM₁₀ are possible to have the same or similar pollution sources.The main reasons for PM_2.5 and PM₁₀ pollution are attributed to wind lifting dust and use of fossil fuel.

Key words: Particulate matter, Primary pollutant, Contribution rate, Correlation analysis

CLC Number:

WANG Cheng-xiang, LIU Jia-zhen. Analysis of air quality situation and pollution reasons in Liaocheng[J]. Journal of Meteorology and Environment, 2016, 32(1): 108-112.

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URL: http://www.jme1984.net.cn/EN/10.11927/j.issn.1673-503X.2016.01.016

http://www.jme1984.net.cn/EN/Y2016/V32/I1/108

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Analysis of air quality situation and pollution reasons in Liaocheng

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