长沙市空气自动站周边区域大气污染物排放源清单

Atmospheric Pollutants Emission Inventory in the Surrounding Area of the Air Automatic Stations in Changsha

中文关键词:  大气污染物  长沙市  空气自动站  排放清单  排放特征

英文关键词:atmospheric pollutants  Changsha  air automatic station  emission inventory  emission characteristics

中文摘要:

      以长沙市空气自动站周边3km为研究对象，基于统计年鉴和实地调查，获得了该地区2015年储存运输源、废弃物处理源、工艺过程源、化石燃料固定燃烧源、农业源、生物质燃烧源、扬尘源、移动源8个源类的活动水平数据。以大气污染物排放源清单编制技术指南为依据，建立了2015年长沙市空气自动站周边3km区域NH₃、NO_x、PM₁₀、PM_2.5、SO₂、VOCs等6项污染物的源排放清单。结果表明，2015年长沙空气自动站周边3km内，8类大气污染源排放的NH₃、NO_x、PM_2.5、PM₁₀、SO₂、VOCs总量分别为53.65t、4899.35t、1846.09t、6257.75t、989.49t、4383.31t。NH₃、NO_x、PM_2.5、PM₁₀、SO₂、VOCs排放量最大的源分别是农业源、移动源、扬尘源、扬尘源、化石燃料固定燃烧源和移动源，贡献率分别为98.45%、84.24%、60.82%、85.90%、97.33%、49.88%。优化道路交通、减少燃煤、减少建筑工地扬尘排放可促进长沙市空气自动站周边空气质量改善。

英文摘要:

      Taking the 3 km area around automatic air stations in Changsha as the research object, based on the statistical yearbook and field survey, activity level datas for 8 kinds of air pollution sources including storage and transportation source, waste treatment source, process source, fossil fuel fixed combustion source, agricultural source, biomass combustion source, dust source, mobile source were obtained. Based on the compilation guideline of atmospheric pollutants emission inventory, the source emission inventory of 6 kinds of contaminants such as NH₃, NO_x, PM₁₀, PM_2.5, SO₂ and VOCs in the 3 km area around the air automatic stations in Changsha was established. The results showed that the total amount of NH₃, NO_x, PM_2.5, PM₁₀, SO₂ and VOCs emitted by 8 kinds of air pollution sources within 3 km around auto station in Changsha in the year of 2015 were respectively 53.65t, 4 899.35t, 1 846.09t, 6 257.75t, 989.49t and 4 383.31t. The largest sources of emissions of NH₃, NO_x, PM_2.5, PM₁₀, SO₂ and VOCs were respectively agricultural source, mobile source, dust source, dust source, fossil fuel fixed combustion source and mobile source, with the contribution rates of 98.45%, 84.24%, 60.82%, 85.90%, 97.33% and 49.88%. The air quality around the air automatic stations in Changsha can be improved by optimizing road traffic, reducing coal consumption, and reducing the dust emission in construction sites.