辽宁省1980-2003年氮氧化物排放清单初步研究

根据能源消费历史状况和氮氧化物(NOx)排放因子,分别对辽宁省20多年(1980-2003年)来的NOx排放总量以及不同燃料类型和行业的NOx排放量进行了估算.结果表明:尽管个别年份存在一些波动,但NOx排放总量总体上仍呈增长的趋势,年均增长率为4.30%.2003年辽宁省NOx排放总量达108×104 t.NOx排放总量增长趋势与能源消费总量的增长趋势基本吻合,煤炭消耗是大气中NOx排放的主要来源,占总量的65%以上,最大排放量为2003年的10.17×104 t.绝大部分NOx排放来自能源加工转换、工业和交通运输业,三者约占总量的90%,其中电力行业占28.10%～40.85%,预计在未来一段时间内电力行业仍将是辽宁省NOx排放的主要来源;交通运输部门NOx排放所占比例逐年上升,尤其在2000年后的增长趋势更为明显. 

Preliminary Study on Nitrogen Oxides Emission Inventory of Liaoning Province from 1980 to 2003

Based on emission factors and historical energy consumption statistics,NO_x emission inventory in Liaoning Province from 1980 to 2003 was studied.Temporal variations were described and contributions from different sources(fuels,sectors) were estimated.The results showed that total amount of NO_x emission increased by an annual growth rate of 4.30%,despite fluctuations in some years.In 2003,NO_x emission amount was 108×10~4 t.The increase of NO_x emission basically coincides with the increase of energy consumption.Contribution from coal consumption was the dominant source of NO_x emission,which accounted for 65% of the whole amounts,and the highest emission was in 2003,reaching 10.17×10~4 t.About 90% NO_x was generated from energy transformation,industry and transportation sectors,and 28.10%～40.85% of the total amount was generated from power industry,which will continue to be the dominant source of NO_x emission in Liaoning Province in the future.The contribution from transportation sectors increased year by year and the trend was more evident after the year 2000.