Abstract
Based on the technical guide for the preparation of air pollutant emission inventory, this paper makes a statistical analysis of the basic data of air pollution related to the Changchun, and according to the relevant literatures, establishes a list of the main air pollutant emissions from the Changchun 2016 air pollution emission sources (including fine particles, sulfur dioxide and nitrogen oxides). Then the uncertainty analysis is made by Monte Carlo method, and the countermeasures of Changchun air pollution control are put forward. The results showed that the total emission of PM<sub>2.5</sub> in Changchun in 2016 was 70986.45t, and the emissions from the main sources are fixed combustion source, mobile source, process source, biomass burning source and dust source respectively. According to the analysis, we know that coal-based energy consumption structure not only contributes significantly to the emission of one fine particulate matter, but also emits a large number of two fine particulate precursor materials, such as sulfur dioxide, nitrogen oxides. The total sulfur dioxide emission in Changchun in 2016 is 52183.55t, and the total NOx emission is 13.15 million tons. The uncertainty analysis of the Monte Carlo method shows that the uncertainty range of the emission inventory is small and the estimation results are quite credible.
Highlights
In recent years, the air characteristics in Changchun have changed from the traditional soot-type pollution to the "compound" pollution
Tian Hozong and Wang Litao respectively established the National NOx emission inventory and Co emission inventory [4, 5]; On the regional scale, Zheng Junyu set up the 2006 air pollutant emission inventory of the pearl river delta, and studied the spatial distribution of air pollutant emissions in the pearl river delta [6]; On the urban scale, Zhaobin and Ye Xianman set up the 2003 air pollutant emission inventory of Tianjin and the 2010 air pollutant emission inventory of Hangzhou city which provide a basis for the study of atmospheric governance in the region [7]
In 2016, the total emission of fine particulate matter in Changchun is 70986.45t, and the emissions of each sub-class source are fixed combustion source, mobile source, process source, biomass burning source and dust source respectively, which accounted for the ratio 24.96%, 22.99%, 22.97%, 15.58% and 13.49%
Summary
The air characteristics in Changchun have changed from the traditional soot-type pollution to the "compound" pollution. It is of great significance to establish the air pollutant emission inventory, to study the spatial and temporal distribution and degree of air pollution in the region, to simulate the atmospheric environmental quality in the region, and to provide reference for the future development of air pollution control direction and atmospheric planning and management regulations [3]. Changchun 2016 fine particulate matter, sulfur dioxide and nitrogen oxide source emissions inventory, lay the foundation for the future Changchun air pollution prevention and research work [8]
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