2007年中国大陆地区生物质燃烧排放污染物清单

摘要

In the present work, the total amounts of CH4, SO2, NOx, NH3, EC, OC, NMVOC, CO, CO2, TSP, PM10,PM2.5discharged from biomass burning in Chinese continent region were calculated with biomass consumption combined with emission factors.Spatial distribution of the pollutants and mass contribution of each type of biomass combustion were given.In general, in the year 2007, the total emissions of CH4, SO2, NOx, NH3, EC, OC, NMVOC, CO, CO2, TSP,PM10, PM2.5was 3332.7, 335.3, 951.3, 7754.9, 783.7, 267.7, 6049.6, 76579.6, 743743.7, 7677.8, 6668.9, 4043.7kt,respectively.Sichuan, Anhui, Guangxi, Shandong, Henan and Jiangsu held high emission amounts while in Beijing,Tianjin, Hainan, Ningxia, Qinghai and Tibet, the pollutants amount was iow.Straw and firewood burning were main emission sources, which share 93.8％～98.7％ of the total emission.The main substances emitting pollutants differed in different regions as well as the emission intensity per unit area and per capita.%采用排放因子法计算了中国2007年间CH<,4>、SO<,2>、NO、NH<,3>、EC、OC、NMVOC、CO、CO<,2>、TSP、PM<,10>、PM<,2.5>的排放总量,建立了生物质燃烧污染物排放清单,计算了各污染物总排放量的空间分布及不同生物质燃烧类型对各污染物总排放量的贡献率,重点完善了各省市生物质燃烧捧放不同牲径颗粒物清单.结果显示,2007年我国大陆生物质燃烧排放CH<,4>、SO<,2>、NO<,x>、NH<,3>、OC、EC、NMVOC、CO、CO<,2>、TSP、PM<,10>、PM<,2.5>排放总最分别分为3332.7,335.3,951.3,7754.9,783.7,267.7,6049.6,76579.6,743743.7,7677.8,6668.9,4043.7kt.四川、安徽、广西、山东、河南、江苏等地区生物质燃烧各污染物排放量较高,北京、天津、海南、宁夏、青海和西藏等省区各污染物排放量较少.不同地区排放污染物的主要生物质类型存在较大的差异,单位面积排放强度和人均排放量区域间差异显著.人类活动是生物质燃烧排放污染物的主要影响因素,秸秆和薪柴燃烧是污染物排放量最大的2种生物质,其对各种污染物的贡献率为93.8%～98.7%.