ENVIRONMENTAL-IMPACT STUDY OF ENERGY STRUCTURE AND POLLUTANT SOURCE CONSTITUTION ON AIR-QUALITY IN SHENZHEN

Based on the latest two-years' survey of sources of pollutants and the results of continuous monitoring of both energy consumption and air q uality, a detailed quantitative study is made on the influence of diff erent pollutant sources on the air quality. NOx is the main air pollut ant with an estimated contribution of about 70%. Vehicles are the main pollutant source contributing 46%, of which NOx is 64% expressed as m ass. The contribution of point sources to NOx emissions is of a second order but point sources are responsible for most of the SO2 emissions . Area sources have only a limited impact.