摘要
利用2015年8月1.5m级高分辨率遥感影像,对北京市平原区居住平房类型、面积和分布进行遥感监测,获取居住平房斑块,并利用平房采暖面积调查、燃煤量现场抽样调查等技术手段,估算了北京市平原区主要区居住平房冬季燃煤总量,同时结合相关文献调研的无烟煤排放因子,测算北京平原区主要区平房燃煤PM、SO_2、CO、NO_x、黑碳(BC)和有机碳(OC)的排放量,为北京市原煤散烧管控及大气污染防治提供基础数据.结果表明:北京市平原通州区平房燃煤量最大,达到97.4万t,其次是顺义和大兴区,均超过60万t,昌平区和房山区则接近50万t.从空间分布来看,燃煤散烧量由西北向东南呈现增加趋势,燃煤量主要集中在城市发展新区,压减燃煤的工作重点仍集中在六环内外的区,但城市拓展区中朝阳和海淀山后区域均是散煤控制的重点区域,应引起相关部门的重视.2015年北京市平原区居住平房燃煤消耗中,各区居住平房燃煤所产生的大气污染物排污量差别明显,其中通州区的SO_2和NO_x排放量最高,分别为3534.4,2514.0t.
The spatial pattern of bungalow areas in the plain area of Beijing was interpreted with 1.5m high resolution remote sensing images in Aug, 2015. Then, the bungalow build-up areas were refined by a combination of field sampling and the imagery interpretations. A statistical model was developed to estimate the coal consumption in bungalow areas based on statistical records of build-up areas. The coal burning emissions of particulate matter（PM）, sulfur dioxide（SO2）, nitrogen oxide（NOx）, carbon monoxide（CO）, black carbon（BC）, and organic carbon（OC） were estimated by the emission factors that were collected from the relative researches. The results showed that： the consumed coal weight was especially in districts of Tongzhou, where the coal consumption was 0.974 million tons in Tongzhou and the coal consumption more than 0.60 million tons in Shunyi and Daxing. The coal consumption in Changping and Fangshan was close to 0.50 million tons. The special distribution of coal consumption showed an increasing trend from the northwest to the southeast of Beijing. The new urban development district in Beijing had the highest bungalow density; Special attention should be given to Chaoyang and Haidian mountain areas. The emissions of PM、SO2、NOx、BC、OC、CO in the plain areas of Beijing were obvious difference. The highest emissions of SO2 and NOx were in Tongzhou district, reached 3534.4 tons and 2514.0 tons, respectively.
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
2017年第3期859-867,共9页
China Environmental Science
基金
基金项目:基于新一代卫星遥感
地面监测与分析模式的区域空气质量综合监测研究与应用(Z161100001116013)
