重庆市九龙坡区二氧化硫污染现状及原因

The pollution status of SO_2 and corresponding reason in Jiulongpo district, Chongqing City

本文首先分析了重庆市九龙坡区二氧化硫的污染现状以及"十一五"和"十二五"这十年期间二氧化硫的年际变化趋势,结果表明"十一五"和"十二五"期间九龙坡区二氧化硫浓度大幅度下降,从101毫克/立方米降低到16毫克/立方米,降幅达到84.2%。然后本文从三个方面分析了九龙坡区二氧化硫浓度得以降低的原因。

This paper firstly discussed the pollution status of SO_2 and the 10 year＇s annual variation tendency for the period of 11 the Five-Year Plan and the 12 th Five-Year Plan; results showed that during the ten years, the annual SO_2 concentration declined rapidly. The SO_2 concentration declined from 101 μg/m^3 to 16 μg/m^3, with the decreasing amplitude of 84.2%. And the reasons for the rapid decline of SO_2 concentration were discussed from three aspects.