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Atmospheric environmental systems as an important part of the environment and ecology has an important effect, air pollution has become a widespread concern about environmental problems. A large number of human activities into the atmosphere of pollutants adsorbed on atmospheric particles on the movement of pollutants in the atmosphere moving through the atmosphere on a global scale transmission. Substances in the atmosphere through wet and dry deposition (precipitation) input to the soil, water, artificial facilities, affecting terrestrial ecological environment. As the northeast old industrial base in Jilin Province, with the urban social and economic development, coal, industrial dust and traffic on road transport emissions caused tremendous pressure on the urban environment. Jilin approach to the major winter snowfall precipitation mainly particulate matter in the atmosphere mainly through dry and wet deposition process ultimately input to the soil, water, artificial facilities. Atmospheric pollution directly affects the nature of the input, to understand the physical and chemical properties of atmospheric deposition is to investigate the environmental impact of winter snowfall primary prerequisite. Snow in winter snowfall sediment physicochemical properties of winter snowfall for the further understanding of sediment in Jilin origin and impact on the environment is important. In this paper, X-ray diffraction method, chemical analysis Changchun, Jilin Province, Baicheng City, Yanji City snow in sediment particle composition, mineral composition, soluble ionic composition and organic carbon content were determined. The results showed that: 1, Jilin Province, 2009-2010 snowfall average pH of 6.44, range 6.01-7.10, does not belong to acidic precipitation, acidification does not impact on the environment. Moderate conductivity values, averaging 55.0μs/cm, range 17.50 ~ 86.00μs/cm, about China Atmospheric Background benchmark Observatory at Mt precipitation is 37 times cleaner, snowfall affected to a certain degree of pollution. Ca2 and NH4 is the major cation concentration and cation respectively, accounting for 38% and 40%; HCO3-and SO42-is the major anion anion concentration and accounted for 47% and 38%. Jilin snow snowfall overcast ion concentration order of: HCO3-gt; SO42-gt; Cl-gt; NO3-, atmospheric precipitation are sulfuric acid, acidic precipitation on the contribution rate is higher, but because of Jilin precipitation ( SO42-NO3-) / (Ca2 NH4) = 1.38, lower values, indicating a strong capacity in Jilin Province and the atmosphere, although there are more ions, but less prone to acid rain, acidification does not impact on the environment. Jilin Province and Beijing, Lanzhou, Chongqing three cities SO42-anions are mainly due to the characteristics of the main cities in China's energy structure results, mainly through the Chinese cities can get fired. Currently vehicles and petrochemical industry in Jilin Province on the degree of atmospheric pollution as Beijing, Lanzhou, Chongqing, three cities, NO3-on atmospheric pollution contribution rate is relatively low. Jilin chemical and cement industries contribute to air pollution is higher than Beijing and Chongqing. Jilin atmospheric environment less acidic. Jilin Province and Beijing, Lanzhou, Chongqing, three cities are Ca2 cations in atmospheric precipitation and NH4-based. 2, Jilin Province, mainly in the sediments snow snowfall lt; 2μm particle-based, the mean content of the order of (lt; 2μm) gt; (20-200μm) gt; (gt; 200μm) gt; (2-20μm) . Jilin Province, mainly in the sediments snow snowfall lt; 2μm particle size, followed by the 20-200μm diameter, indicating the province mainly in winter atmosphere PM2.5 based. PM2.5 is particulate matter, when the particles enter the body through the respiratory system respiratory respiratory tract and other organs of human body cause a certain degree of damage, for large particles from entering the respiratory tract and can cause asthma and other complications, and the relatively smaller fine particles into the human respiratory system can cause lung disease, heart disease, and other respiratory diseases, lung function effects on the human body have been affected. 3, sediment content Jilin snow snowfall mean 189.71m / L, range 37.47mg / L ~ 643.06mg / L particulate matter in the atmosphere passing through the ground more snowfall, indicating relatively poor air quality in Jilin Province, the atmosphere Wet deposition can absorb large amount of atmospheric particulate matter. Jilin Province, a large number of winter heating coal combustion, vehicle exhaust, human life resulting in significant emissions of organic sediments Jilin snow snowfall higher carbon content. A large number of snow melt surface soil organic carbon combined with increased soil organic carbon content. High organic carbon content of soil microbial decomposition of organic carbon phase is relatively strong, microbial decomposition of organic carbon in the process of increasing the consumption of 02, resulting in higher levels of organic carbon in the soil decreased 02, soil aeration the drop may result in high levels of organic carbon soil nitrification is limited. 4, the paper analyzed by X-ray diffraction snow snowfall in Jilin Province sediments natively minerals, clay minerals analyzed. Jilin snowfall snow sediments natively minerals quartz, feldspar, does not contain mica, pyroxene, hornblende, olivine, calcite, apatite, pyrite and other primary minerals, and occasionally found in red Iron ore minerals, indicating the mineral composition of PM10 in Jilin Province is more complicated. Feldspar group minerals is a silicate mineral, most including KAlSi3O8, NaAlSi3O8, CaAl2Si2O8 ternary lines. Mainly in clay minerals montmorillonite, illite, kaolinite, vermiculite based, occasionally containing chlorite. Jilin winter snowfall atmospheric conditions, the atmospheric particles mainly clay mineral-based.
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