摘要
运用CALPUFF模式模拟了深圳市2011年大运会环境空气质量保障措施方案实施后对污染物减排及环境空气质量的影响。结果表明,大运会前常规措施、大运会期间临时措施和大运会期间极端不利天气条件下应急措施3套方案对二氧化硫(SO_2)、氮氧化物(NO_x)、可吸入颗粒物(PM_(10))有明显的减排效果。机动车排放标准和油品升级、黄标车禁行、电厂"油改气"和低氮燃烧器改造、工业锅炉窑炉治理、建筑工地扬尘和道路扬尘控制等措施是降低污染物排放的主要途径。相对于基准情景(2009年),3套措施实施后,深圳市SO_2、NO_2、PM_(10)月均浓度累计下降比例均在50%以上,其中临时措施贡献最大,实施后各污染物浓度下降了30%以上。同时,深圳市不同地区的污染浓度差距缩小,全市范围的环境空气质量得到整体提升。
CALPUFF model was applied to estimate the variation of air pollutants＇ emissions and concentrations after the implementation of the air quality guarantee measures for the 26 th Universiade in Shenzhen in 2011. The results indicated that,after applying the three sets of guarantee measures,which were routine measures for the pre-universiade period,temporary measures for the during-universiade period,and emergent measures when the adverse weather conditions occurred during the Universiade,the emissions of three pollutants,i.e.,SO2,NO2 and PM10would decrease considerably. Among all the measures,motor vehicle emission standards and oil upgrading,yellow label cars forbidding,power plant fuel replacement and low NOxcombustion,industrial boilers and furnaces upgrading,and construction dust and road dust controlling were the main approach to reduce the three pollutants＇ emissions,which would provide an important reference on the future of air pollution control for Shenzhen. Relative to the base scenario of 2009,the monthly mean concentration of SO2,NO2 and PM10 would all decline over 50% cumulatively after the implementation of all measures,and the temporary measures accounted for about 30%. Besides,the differences of pollution situation among distinct areas become much less,and the air quality was entirely improved in Shenzhen.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2016年第7期179-184,共6页
Environmental Science & Technology
基金
深圳市环境科研专项资金资助项目(SZCG2010022552)
