Pollutants Volatile Organic Compounds (VOCs)

Description:
VOCs are organic chemicals that, when released into the atmosphere, participate in photochemical reactions. While VOCs are nearly invisible, they often have a noticeable odor and turn into an evaporated state easily.

Source:
While VOCs can be emitted from natural sources, many are man-made, created by industrial processes. VOCs include chemicals such as benzene, toluene, and methyl chloroform. Chlorofluororcarbons (CFCs), hydrofluorocarbons (HFCs), and Perchloroethylene (the principle dry cleaning solvent) are VOCs that are greenhouse gases. VOCs are released from burning fuel, solvents, paints, and glues. VOCs can combine with nitrogen oxides to help form ozone.