The definitions of VOCs used for control of precursors of photochemical smog used by the U.S. Environmental Security Agency (EPA) and condition businesses in the US with unbiased outdoor air air pollution regulations contain exemptions for VOCs that are determined to become non-reactive, or of reduced-reactivity within the smog formation https://andersonpxcgj.blogchaat.com/15642710/voc-test-things-to-know-before-you-buy