Some chemical engineers, known as process engineers, specialize in a particular process, such as oxidation (a reaction of oxygen with chemicals to make other chemicals) or polymerization (making plastics and resins).
Quick Answer. Some of the major causes of air pollution include burning of fossil fuels, agricultural activities, exhaust from industries, vehicle fumes, mining operations and indoor pollutants. Air pollution has a negative impact on the environment and life in general.
Indoor air pollution is usually caused by the accumulation of contaminants from various sources inside a home. Emissions from fireplaces, stoves, cigarettes, cleaning products, newer building materials, and chemicals stored in the home can cause indoor air problems.