阜新市化石燃料燃烧源大气污染物排放源清单及特征分析

为了向阜新市化石燃料燃烧源大气环境管理工作提供排放清单的理论依据,通过对阜新市(5区、2县、2园区)环境统计数据的收集和实地调查,结合本地化大气排放因子,建立了2017年阜新市化石燃料燃烧源涵盖SO_2、NO_x、PM_(2. 5)、PM_(10)、挥发性有机物(VOCs)、CO、黑碳(BC)、有机碳(OC) 8类大气污染物的排放清单。利用Arc Gis 10. 2遥感技术,分析了大气污染物时空分配特征。研究结果表明:8类污染物排放量分别为11 915. 49、7 215. 33、3 607. 78、2 002. 96、4 594. 72、4 277. 05、384. 15、16. 62 t;各类污染物的贡献率以及区域空间分布特征均存在差异,但其在时间上表现出一致性(除PM_(2. 5)),即在时间上均表现出两个峰值,高峰分别出现在夏季的七、八月和冬季的十一月至一月;县区中彰武县污染物排放较多,市区中太平区污染物排放较多;火力发电和热力供应企业对阜新市大气污染贡献较大,应当重点管控。

Source Inventory and Characteristics of Air Pollutants from Fossil Fuel Combustion Sources in Fuxin City

In order to provide the theoretical basis for building the fossil fuel combustion inventory and better manage the local atmospheric environment of the Fuxin city, fossil fuels were collected, selected sites were investigated and the local atmospheric emission factor database with a list of eight atmospheric pollutants (SO₂, NO_x, PM_2.5, PM₁₀, Volatile organic compounds (VOCs), CO, Black carbon (BC) and Organic carbon (OC)) was established to apportion fossil fuel combustion sources in the Fuxin city (five districts, two counties, and two parks) in 2017. The ArcGis 10.2 remote sensing technology was used to analyze the spatial and temporal distribution of atmospheric pollutants, the results indicated:Emission amounts of eight pollutants were 1 1915.49, 7 215.33, 3 607.78, 2 002.96, 4 594.72, 4 277.05, 384.15, and 16.62 tons respectively. The contribution rates and regional spatial distribution characteristics were varied by one pollutant and another, but the variation was temporally consistent (except PM_2.5), that is, they all showed two peaks, one occurred in July and August of summer and one occurred in November and January of winter. In terms of the regional distribution, the Zhangwu county and the Taiping district emitted more pollutants compared to their counterparts. Thermal power generation and heat supply companies contributed most to the atmospheric pollution in Fuxin and should be controlled.