武汉市大气污染源排放清单及分布特征研究

以武汉市为研究区域，基于实地调查获得典型行业污染源活动水平，以大气污染物排放清单编制技术指南为参考，利用排放因子法建立2014年武汉市大气污染源排放清单，并结合经纬度、人口密度分布、土地利用类型、道路长度等数据将排放清单进行了3 km×3 km网格化处理.结果表明，2014年武汉市SO₂、NO_x、PM₁₀、PM_2.5、CO、BC、OC、VOCs和NH₃排放量分别为10.3、17.0、16.3、7.1、63.1、0.6、0.4、19.8和1.6万t.固定燃烧源为SO₂排放的主要来源，其贡献率约64%；移动源为NO_x的主要来源，其贡献率约51%；颗粒物排放主要来源于扬尘源和工艺过程源；CO和VOCs主要来源于工艺过程源，BC和OC排放均以移动源和生物质燃烧源为主，NH₃排放主要来自农业源.污染物排放主要集中在青山区至新洲区一带.

Air pollutant emission inventory and distribution characteristics in Wuhan city

The amounts of nine atmospheric pollutants emitted in Wuhan in 2014 were calculated by a comprehensive investigation of pollution sources and analyzing atmospheric pollutants emission factors as per the public manual and literature.A 3 km×3 km gridded emission inventory was developed based on distribution parameters such as coordinates,population,land types,and road network.The results showed that the total emissions of SO₂,NO_x,PM₁₀,PM_2.5,CO,BC,OC,VOCs,and NH₃ in Wuhan in 2014 were 103 thousand,170 thousand,163 thousand,71 thousand,631 thousand,6 thousand,4 thousand,198 thousand,and 16 thousand tons,respectively.Fuel combustion sources contributed the most to SO₂ emissions,accounting for 64% of the total.Mobile sources contributed the most to NO_x emissions,accounting for 51% to the total.The major emission sources of PM₁₀ and PM_2.5 were fugitive dust and industrial production.Industrial production also served as a major emissions contributor of CO and VOCs.BC and OC emissions were mainly attributed to mobile sources and biomass burning.NH₃ emissions mainly resulted from agricultural sources.Air pollutant emissions were typically concentrated from the Qingshan to the Xinzhou administrative regions.