【摘要】 建立了2015年乌昌石区域化石燃料固定燃烧点源大气污染物(NO_x、SO₂、PM_2.5和PM₁₀)的排放清单,并对污染物的时空分布特征进行了分析。结果表明,2015年乌昌石区域化石燃料固定燃烧点源NO_x、SO₂、PM_2.5和PM₁₀的年排放量分别为2.10×10⁵、1.52×10⁵、4.28×10⁴、8.35×10⁴ t。从行业上来看,电力生产与供应行业对NO_x、SO₂、PM_2.5和PM₁₀的贡献率最大,分别为70.78%、66.56%、51.10%、49.98%;从化石燃料上来看,煤炭对NO_x、SO₂、PM_2.5和PM₁₀的贡献率最大,分别为95.63%、99.84%、99.70%、99.84%;从锅炉类型上来看,煤粉炉对NO_x、SO₂、PM_2.5和PM₁₀的贡献率最大,分别为84.20%、85.09%、83.43%、84.06%。固定燃烧点源污染物排放呈现出明显的时间变化特征,采暖季污染物排放量明显高于非采暖季,一天中白天的污染物排放量高于夜晚。空间分布显示,大气污染物的排放源主要集中在乌鲁木齐市、五家渠市和昌吉市。更多还原

【Abstract】 The emission inventory of atmospheric pollutants(NO_x,SO₂,PM_2.5 and PM₁₀)from fossil fuel fixed combustion point source in Wuchangshi area in 2015 was established.The temporal and spatial distribution characteristics of pollutants were analyzed.Results showed that the annual emissions of NO_x,SO₂,PM_2.5 and PM₁₀ from fossil fuel fixed combustion point source in Wuchangshi area in 2015 were 2.10×10⁵,1.52×10⁵,4.28×10⁴ and8.35×10⁴ t,respectively.In terms of industry,the electric power production and supply industry contributed the most to NO_x,SO₂,PM_2.5 and PM₁₀ emissions,accounting for 70.78%,66.56%,51.10%and 49.98%,respectively.In terms of fuel,coal contributed the most to NO_x,SO₂,PM_2.5 and PM₁₀ emissions,accounting for 95.63%,99.84%,99.70%and 99.84%,respectively.In terms of boiler type,pulverized coal furnace contributed the most to NO_x,SO₂,PM_2.5 and PM₁₀ emissions,accounting for 84.20%,85.09%,83.43% and 84.06%,respectively.The emission of pollutants had significant temporal characteristics with higher in heating season than in non-heating season,and higher in daytime than in nighttime.Spatial distribution characteristics showed that the emission sources of atmospheric pollutants were mainly concentrated in Urumqi,Wujiaqu and Changji.更多还原