研究报告
袁梦晨,祖彪,张青新,刘鹏辉,赵瑜.辽宁省人为源大气污染物排放清单及特征研究[J].环境科学学报,2018,38(4):1345-1357
辽宁省人为源大气污染物排放清单及特征研究
- Emission inventory and characteristics of anthropogenic air pollutant sources in Liaoning Province
- 基金项目：国家环境保护公益性行业科研专项（No.201509004）
- 作者
- 单位
- 袁梦晨
- 南京大学环境学院, 南京 210023
- 祖彪
- 辽宁省环境监测实验中心, 沈阳 110161
- 张青新
- 辽宁省环境监测实验中心, 沈阳 110161
- 刘鹏辉
- 辽阳市环境监测站, 辽阳 111000
- 赵瑜
- 南京大学环境学院, 南京 210023
- 摘要：为全面评估辽宁省关键大气污染物排放状况，系统收集和整理全省基础活动水平信息，采用排放因子法建立了该省2012年人为源大气污染物排放清单.结果显示，2012年辽宁省SO2、NOx、CO、PM10、PM2.5、BC、OC及NH3排放总量分别为1434.8×103、1632.3×103、6682.9×103、1529.9×103、1087.8×103、74.5×103、176.1×103 t及880.4×103 t.BC和OC最大贡献源为生物质燃烧源，排放集中分布在辽宁中、西部；NH3主要来自畜禽养殖与化肥施用，排放高值区位于辽宁中部农业畜牧业发达地区；其他污染物主要来自固定燃烧源和工艺过程源，集中分布在辽宁中部城市群以及大连金州区、甘井子区和普兰店区.大连、沈阳是SO2、NOx、NH3和颗粒物主要排放城市，鞍山和本溪由于钢铁行业发达，成为CO排放量最大的城市.基于卫星观测获得的NO2垂直柱浓度对NOx排放空间分布进行评估，两者相关性系数为0.57（p<0.01）.辽宁省级排放清单与国家尺度排放清单在一定程度存在差异，主要原因在于采用的活动水平和污染物控制效率的不同，基于详细本地化污染源信息建立的省级排放清单可以较好地反映实际情况.建议完善点源排放特征信息并加强本地化测试，进一步降低省级排放清单不确定性.
- Abstract：In order to comprehensively evaluate air pollutant emissions in Liaoning, a detailed provincial emission inventory of anthropogenic sourecs was developed for 2012 based on collected activity data and emission factors. The total emissions of SO2, NOx, CO, PM10, PM2.5, black carbon (BC), organic carbon (OC) and NH3 in Liaoning were estimated at 1434.8×103, 1632.3×103, 6682.9×103, 1529.9×103, 1087.8×103, 74.5×103, 176.1×103 and 880.4×103 t, respectively. Distributed principally in central and western Liaoning, BC and OC were mainly from biomass combustion source. N-fertilizer application and livestock were the top two contributors of NH3 emissions, and NH3 emissions were mainly distributed in central area with developed agriculture and stockbreeding. Industrial process source and stationary combustion source contributed significantly to other pollutants, which were concentrated in the city clusters in the middle of Liaoning and Jinzhou, Ganjingzi and Pulandian District of Dalian. Shenyang and Dalian were the cities with largest SO2, NOx, NH3 and particles emissions. Anshan and Benxi were the cities with the largest CO emissions due to the developed iron and steel industry. NO2 vertical column densities (NO2-VCD) from the Ozone Monitoring Instrument (OMI) were used to evaluate the spatial distribution of NOx emissions, and the spatial correlation coefficient between them was 0.57 (p<0.01). There were some differences between provincial and national emission inventory for Liaoning owing to application of different activity level and pollutant control efficiencies in the two inventories. Our provincial inventory based on detailed information on individual pollution sources is expected to be more consistent with actual conditions. Improvement on emission estimation of point sources and domestic measurements on local emission factors are further recommended in the future to reduce the uncertainty of provincial emission inventory.
摘要点击次数： 1213 全文下载次数： 1505
