摘要
建立了2010年火电厂大气污染物排放清单,在此基础上设计了实施2003版标准和实施新版标准的模拟情景,运用Models-3/CMAQ模型系统分别预测其到2015年和2020年的NO2、SO2、PM2.5浓度以及氮、硫沉降量,探讨新版火电排放标准对我国大陆地区空气质量的改善.研究表明,新版火电标准的实施能够有效地改善我国的空气质量状况,相比于实施2003版标准情景,到2015年和2020年全国NO2浓度超过国家二级标准的面积分别减少了53.9%和55.2%;SO2浓度超过国家二级标准的面积均减少了40.0%;氮沉降强度超过1.0 t·km-2的面积分别减少了75.4%和77.9%;硫沉降强度超过1.6 t·km-2的面积分别减少了37.1%和34.3%.
The emission inventory of air pollutants from the thermal power plants in the year of 2010 was set up. Based on the inventory, the air quality of the prediction scenarios by implementation of both 2003-version emission standard and the new emission standard were simulated using ModeIs-3/CMAQ. The concentrations of NO2 , SO2 , and PM25 , and the deposition of nitrogen and sulfur in the year of 2015 and 2020 were predicted to investigate the regional air quality improvement by the new emission standard. The results showed that the new emission standard could effectively improve the air quality in China. Compared with the implementation results of the 2003-version emission standard, by 2015 and 2020, the area with NO2 concentration higher than the emission standard would be reduced by 53.9% and 55.2% , the area with SO2 concentration higher than the emission standard would be reduced by 40.0% , the area with nitrogen deposition higher than 1.0 t.km-2 would be reduced by 75.4% and 77.9% , and the area with sulfur deposition higher than 1.6 t.km-2 would be reduced by 37. 1% and 34.3% , respectively.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2014年第3期853-863,共11页
Environmental Science
关键词
排放标准
数值模拟
NO
酸沉降
PM2
5
emission standards
numerical simulation
NOx
acid deposition
PM2.5
