The Investigation Of Main Pollutants Inventories And The Study On Source Apportionment

In recent years, the overall atmospheric quality of China was improved, but there were still some regional deterioration. Atmospheric environment, especially of urban regions, has been drawing comprehensive attention, which made improving atmospheric quality one of the major tasks to prevent atmospheric pollution. And the very first job is investigating and analyzing source of these pollutants and their chemistry.This paper expounds emission inventories surveying methods based on various sources of atmospheric pollutants classification. And we also give a brief description of several sources of space interpolated data processing methods by treating with the source of data and processing methods according to different intention. According to the national data we do some simple analysis to the national pollution emissions. We surveyed a detailed list of the main sources of Shanxi Province, gave an accurate database of Shanxi, and added up the original list of atmospheric pollution sources. In order to calculate the impact of atmospheric pollutants from Shanxi on Beijing by using weather and pollution transmission model, we give several formulas to determine source intensity of various pollution sources. Through the experimental observation to atmospheric particles in the Taiyuan area, we analyzed the chemical composition and spectral distribution characteristics of source, and used chemical mass balance method (CMB), enrichment factor analysis and factor analysis to resolve the spectral distribution and the chemical composition of airborne particle. Thus we distinguished pollutants from different sources, and revealed the sources and atmospheric chemical composition of the major pollutants in Shanxi Province. It also gives a solid support for Shanxi Province as to pollution control and environmental decision-making.We made a point and area inventories of emissions sources based on a detailed survey of 6 cities in northern and central Shanxi. It covers all cities and can support the full capacity of the atmosphere in cities and the needs of total control of the accounting. We provided the data of total particle emissions, PM₁₀, PM_2.5 and SO₂, according to heating period, the non-heating period and the grid, respectively. Thiscould fulfill the demand of simulation of air pollution transmission model. We concluded that most of elemental concentrations were much higher in December than that in September based on the aerosol concentrations in Taiyuan, which indicated that pollution was very serious in winter. We found that the enrichment factors of pollution elements in Taiyuan were much higher than that in Beijing, through analyzing the enrichment factor of pollutants elements. Beijing is in the downward wind direction, therefore the atmosphere pollution would transport to Beijing from Shanxi.