Definitions for "Volatile organic compounds"
Carbon-containing chemicals which readily evaporate (cleaning solvents, gasoline, etc.). Many common industrial chemicals are VOCs, including trichloroethene, 1,1,1-trichloroethane, and tetrachloroethene.
Organic compounds that evaporate readily into the atmosphere at normal temperatures. VOCs contribute significantly to photochemical smog production and certain health problems. See non-methane volatile organic compounds.
A group of chemicals that react in the atmosphere with nitrogen oxides in the presence of heat and sunlight to form ozone: does not include methane and other compounds determined by EPA to have negligible photochemical reactivity. Examples of VOCs include gasoline fumes and oil-based paints.
Products that off gas emissions which can impact indoor air quality.
Emissions from internal combustion and certain industrial processes. Sources include: light-duty vehicles, heavy duty vehicles, off-road mobile, biogenics, stationary sources and area sources.
class of organics that is easily vaporizable at low temperatures and pressures.