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.
Where does pollution come from? There are four main types of air pollution sources: mobile sources â such as cars, buses, planes, trucks, and trains; stationary sources â such as power plants, oil refineries, industrial facilities, and factories; area sources â such as agricultural areas, cities, and wood burning fireplaces