湛江市大气环境承载度与安全研究

Study on Atmospheric Environmental Bearing Capacity and Security of Zhanjiang City

研究以SO2、NOx、PM10为承载对象,通过湛江市大气环境承载度计算和情景分析,结果表明:(1)湛江市2007年现状大气环境容量负荷较小,其中大气环境各构成要素承载度由高到低分别为NOx(0.55)>SO2(0.43)>PM10(0.21);(2)未来湛江大气污染物将呈大幅度增加趋势。远期高方案和中方案情景下NOx分别超载16 057 t/a和12 621 t/a,说明NOx将成为最主要的大气制约指标;(3)建议旨在提高湛江市大气环境承载力的工作方案中,要重点考虑如何降低NOx的排放量。

The study took SO2, NOx, PM10 as major bearing objects, and the result of this article focused on three main points, which was revealed through calculation and scenario analysis on atmospheric environment capacity of Zhanjiang City. The atmospheric environment load was low in 2007, and carrying degrees of atmospheric environment elements in an descending order were NOx （0. 55 ） 〉 SO2 （0. 43 ） 〉 PM10 （0. 21 ）. The atmospheric pollutants will increase significantly in Zhanjiang, with NOx overloading of 16057t/a and 12621t/a respectively in mid and long - term outlook. It means NOx would become a major atmospheric control index. Some suggestions focused on how to reduce NOx emissions were proposed to improve the bearing capacity of atmospheric environment in Zhanjiang City.