我国农村生活能源中SO2、 NOX及TSP的排放量估算

根据2004年我国不同省、市、自治区农村生活用能源的消耗量和不同燃料的污染物排放因子,估算了我国农村生活能源利用过程中的SO₂、NO_X、TSP排放量,并给出了分省区的排放清单和各省区不同燃料对三种污染物的贡献率,探讨了各地农村污染物排放量的影响因素。结果表明:全国农村生活能源所排放的SO₂达530万吨,NO_X 72万吨,TSP 390万吨。污染物排放以SO₂和TSP为主,且各省、市、区污染物的排放量差别明显;各地不同能源类型对各污染物的贡献率差别较大,SO₂主要来自燃煤,NO_X主要来自秸秆和薪柴的燃烧,TSP主要来自秸秆的燃烧;农村生活能源结构影响其污染物排放。

Estimation on SO2, NOx and TSP emissions from energy consumption for non-production purpose in rural areas of China

Based on rural energy consumption for non-production purpose in China, the emission factors of different energy types and emissions of SO2,NOx and TSP resulted from rural energy consumption for non-production purpose were evaluated. Emission inventories by provinces in 2004 and the share of different fuels on SO2,NOxand TSP emissions were estimated. In general, in the year 2004,the total emissions of SO2, NOx and TSP from rural energy consumption for non-production purpose was 5300kt, 720kt and 3900kt respectively. Compared with the year 1979,the emissions of SO2 merely from the consumption of firewood increased by 20%.SO2 and TSP were the main air pollutants of all,the emissions of SO2 was 23.5% of the total emissions in 2004,and the emissions were different greatly in each province. The share of different fuels on SO2, NOx, and TSP emissions in each region was obviously uneven, and coal burning was the dominant source of SO2, straw and firewood were the main emission sources of NOx, straw was the main emission source of TSP. The energy structure influences the pollutants emissions in rural areas. Emissions of three pollulants of (SO2, NOx, TSP) selected in this work were the main cause for chronic obstructive pulmonary disease and lung cancer, and these diseases were the main cause of death in rural areas of China in recent years. So this work not only just estimates the quality of emissions in rural areas of China, but also indicates some relationship between energy consumption and illness such as chronic obstructive pulmonary disease and lung cancer due to energy consumption.