天津市民用散煤燃烧大气污染物排放清单

Emission inventory of air pollutants from residential coal combustion in Tianjin

为了研究天津市民用散煤燃烧大气污染物的排放情况,采用排放因子法,结合散煤燃烧活动水平,建立了2019、2020年天津市民用散煤燃烧大气污染物排放清单,并根据排放清单对污染物空间分布特征进行了分析。结果表明:2020年民用散煤燃烧量相比2019年减少约61万t,细颗粒物(PM_(2.5))、CO、SO_(2)、氮氧化物(NO_(x))分别减排1010.33、38070.69、904.16、824.68 t。其中,污染物排放贡献最大的区为蓟州区。各区显示出明显的污染物排放空间差异,未来应推进清洁能源的使用,加快清洁能源政策的推广,以减少民用散煤燃烧的污染物排放。

In order to study the emission of air pollutants from residential coal combustion in Tianjin,the emission factor method combined with the activity level of residential coal combustion was used to establish the emission inventory of air pollutants from residential coal combustion in Tianjin for 2019 and 2020.The spatial distribution characteristics of pollutants were analyzed according to the emission inventory.The results showed that compared with 2019,the consumption of residential coal combustion in 2020 decreased by about 610 thousand tons,and PM_(2.5),CO,SO_(2)and NO_(x)decreased by 1010.33,38070.69,904.16,and 824.68 tons,respectively.Among districts,Jizhou District had the largest contribution to pollutant emissions.Each district showed obvious spatial differences in pollutant emissions.In the future,the use of clean energy should be promoted and the promotion of clean energy policies should be accelerated to reduce the pollutant emissions from residential coal combustion.