More about Benzene

Benzene can be produced naturally and by human activities. It can be produced from incomplete combustion of carbon-based materials. Benzene occurs naturally in crude oil and can be formed during refining processes. In Alberta, the main sources are motor vehicle exhaust emissions, followed by industrial emissions and other combustion sources. Benzene also enters the air through evaporation from handling and storing fuels, the use of solvents, and cigarette smoke. Natural sources include volcanoes and forest fires.