PHYS143 Lecture 10: Particulates in Atmosphere
5 Dec 2017
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Document Summary
Anthropogenic fine particles are emitted into the atmosphere from combustion and industrial processes (primary particles), or as a result of chemical reaction of gases in the atmosphere (secondary particles). Gases, such as so 2 ammonium sulfate and ammonium nitrate. Given that fine particles may form as a result of secondary reactions of pollutants, it can be difficult to find the sources. Wood combustion for domestic heating and motor vehicles, particularly diesel vehicles, are known to be two major sources of primary particles. 60% of the carbon particles was of modern origin and could be attributed to the burning of materials such as wood, rather than from fossil fuels. During winter, domestic solid/liquid fuel combustion contributed 36% of weekday emissions and 53% of weekend day emissions. it is estimated that 95% of this is due to the combustion of wood. particle load.
