Sources of Air Pollution

摘要: Publisher Summary National anthropogenic annual emission inventories can, on their own, give a misleading picture regarding the appropriate sources to control. What is important for most pollutants are those that make major contributions elevated concentrations during pollution episodes. As people live in cities, urban identifying these sources. The main source of air burning fossil fuels, particularly power stations and motor vehicles. Emissions from both have begun decline recent years owing introduction efficient abatement measures. In areas, road transport dominant as measures reduce wintertime smogs earlier decades lead re-location many large stationary rural or semi-rural sites. Road single classical pollutants. exceptions sulfur dioxide volatile organic compounds. To develop effective control strategies reducing emissions, it know which type vehicles contributing total traffic emissions. It not possible measure emissions every one. Instead, generally calculated activity relating such fuel consumption distance traveled mobile Emission factors, derived measurements individual representative sources, then multiplied by statistic rate.