贵州省生物质燃烧源大气污染物排放清单

为准确掌握贵州省生物质燃烧源大气污染物的排放状况，基于收集资料和实地调查结合的方式获取活动水平，引用文献和本地实测数据结合的方式选取排放系数，采用排放系数法结合GIS技术，建立了贵州省2019年3 km×3 km生物质燃烧源9种大气污染物排放清单.结果表明：(1)全省生物质燃烧源CO、 NO_x、 SO₂、 NH₃、 VOCs、 PM_2.5、 PM₁₀、 BC和OC的排放量分别为：293 505.53、 14 781.19、 4 146.11、 8 501.07、 45 025.70、 39 463.58、 41 879.31、 6 832.33和15 134.74 t.户用生物质炉具CO、 SO₂、 NH₃和BC的排放量贡献率最大，秸秆露天焚烧NO_x、 VOCs、 PM_2.5、 PM₁₀和OC的排放量贡献率最大.(2)各市(州)生物质燃烧源排放的大气污染物分布不均衡，主...

Emission Inventory of Airborne Pollutants from Biomass Combustion in Guizhou Province

With the objective to ascertain the emissions of biomass combustion in Guizhou, the activity levels were measured through data collection and field surveys, and the emission factors were acquired using actual monitoring data and data cited from previous literature. A 3 km×3 km-gridded emission inventory of nine air pollutants from biomass combustion sources in Guizhou Province in 2019 was developed in combination with GIS technology. The results showed that the total emissions of CO, NO_x, SO₂, NH₃, VOCs, PM_2.5, PM₁₀, BC, and OC in Guizhou were estimated to be 293505.53, 14781.19, 4146.11, 8501.07, 45025.70, 39463.58, 41879.31, 6832.33, and 15134.74 t, respectively. The distribution of atmospheric pollutants emitted by biomass combustion sources in different cities was noticeably uneven, being mainly concentrated in Qiandongnan Miao and Dong Autonomous Prefecture. The analysis of variation characteristics of emissions indicated that the monthly emissions were concentrated in February, March, April, and December, and the hourly emissions peaked daily from 14:00 to 15:00. Some uncertainty remained in the emission inventory. It is necessary to perform in-depth analyses of the accuracy of obtaining activity-level data, localize the emission factors through more combustion experiments in subsequent research for improving the emission inventory of air pollutants from biomass combustion in Guizhou Province, and provide a basis for the cooperative governance of the atmospheric environment.