Air Emission Management

VOCs – Volatile Organic Compounds  挥发性有机化合物

It is a class of prevalent and complex organic pollutants, including paraffin, olefins and aromatics and other substances.

VOCs是空气中普遍存在且组成复杂的一类有机污染物的统称，主要包括烷烃、烯烃和芳香烃等物质

VOCs will turn into secondary organic aerosol particle by going through complicated photochemical reaction, and become an significant source of PM2.5.

通常情况下这些挥发性气体直接排放到大气中后会直接形成大气污染源。此外，VOCs还可以经过复杂的光化学反应，生成颗粒物二次有机气溶胶，成为PM2.5的重要来源之一。

Emissions to air are commonly generated from:

Core facility operations 生产过程

Non - Core facility operations 非生产过程