天津市不同功能区APEC会议期间大气污染物特征及污染成因分析  

Observational Study on Characteristics of Air Pollutants and Causes of Pollution Episodes during 2014 APEC in Different Function Areas in Tianjin

作　　者：魏金来 王浩[1,2] 高健[1] 王淑兰[1] 柴发合[1] 

机构地区：[1]中国环境科学研究院大气环境研究所,北京100012 [2]天津大学环境科学与工程学院,天津300072

出　　处：《环境工程技术学报》2016年第1期26-34,共9页Journal of Environmental Engineering Technology

基　　金：国家自然科学基金项目(41375132);环境保护部公益性行业科研专项(201409003)

摘　　要：为研究2014年APEC会议期间天津市采取大气污染应急防治措施对空气质量的影响,利用3个不同城市功能区站点的观测数据,对比分析了2013年和2014年及APEC会中和会后空气质量达标情况,污染物浓度变化趋势以及污染物特征浓度比值,结合后向气流轨迹模式对典型重污染过程污染物来源和传输过程进行了讨论。结果表明:天津市区空气质量改善效果较明显,NO_2、PM_(10)、PM_(2.5)、SO_2和CO平均浓度同比分别削减了20.3%、41.2%、23.6%、52.2%和6.9%,但因受区域传输的影响,背景站点空气质量却有所恶化。In order to investigate the effect of the mitigation measures implemented to improve the air quality in Tianjin during 2014 APEC,the air pollution was observed in three monitoring stations in different urban function areas. Using the observed data,the air quality situation and the change of air pollutant concentrations between the same period of 2013 and 2014,and between during- and post-conference periods were compared. The change of ratios among different species was compared as well. Backward trajectory analysis was applied to analyze the origins and transporting process of air pollutants during typical pollution episodes. Results showed that the air quality in urban area of Tianjin during 2014 APEC was significantly improved in comparison with that in the same period of 2013,where the average concentrations of NO_2,PM_（10）,PM_（2.5）,SO_2 and CO were respectively reduced by 20.3%,41.2%,23.6%,52.2% and 6.9%. However,because of the impaction from transported polluted air masses,the air quality of background site was worse than that in 2013.

关 键 词：APEC会议 天津 城市功能区 空气质量 

分 类 号：X511[环境科学与工程—环境工程] X513