我国部分地区大气污染现状及其分布特征

Present Situation Analysis on Air Pollution and Distribution Features in Some Areas of China

收集2014—2016年我国部分地区环保部常规监测的6项大气污染物浓度,重点分析了我国东北、华北、华东、华中、西部地区经济快速发展城市空气污染的状况及分布特征。结果表明:除O_3外,其余污染物浓度均下降,SO_2二级达标率持续上升。各污染物区域性分布显著,北方比南方污染重。东部O_3污染严重;PM_(10)、CO浓度在华北地区最高;SO_2浓度在东北、华北最高;PM_(2.5)、NO_2浓度在华中、华北最高。华北地区大气污染严重,华东PM及SO_2污染最轻。

Collected concentration of 6 air pollutants routine monitoring prescribed by the Enviro-nmental Protection Bureau in some region from 2014 to 2016 and analyzed the pollutants＇ status and distribution features in the rapid economic development cities of Northeast, North, East, cent-ral, and Western region of China. The results showed that： Except for O3, the levels annual co-nc- entrations of pollutant showed a downward trend. The percentages of SO2 attainment of the Class II Ambient Air Quality Standard （GB 3095-2012） is rising. Pollutants presented explicitly regional distribution features. Air quality in the northern cities was obviously worse than the southern. O3 pollution was most serious in the Eastern China. The highest concentration of PM25 and NO2 was in the northern and central China. PM10 and CO concentration of North China was highest and the maximum SO2 concentration occurred in the Northeast and North China. Atmospheric pollution in northern China was serious. SO2 and PM pollution was the lightest in East China.