北京奥运会期间奥运村站空气质量的观测与研究  

Observation and Study on the Air Quality at the Olympic Village Station during the Beijing Olympic Games

作　　者：汪伟峰[1,2] 王迎红[2] 王莉莉[2] 朱彬[1] 王跃思[2] 

机构地区：[1]南京信息工程大学大气物理学院,江苏南京210044 [2]中国科学院大气物理研究所,大气边界层和大气化学国家重点实验室,北京100029

出　　处：《环境科学研究》2010年第1期48-54,共7页Research of Environmental Sciences

基　　金：国家重点基础研究发展计划(973)项目(2007CB407303);中国科学院知识创新工程重大项目(KZCX1-YW-06-01);国家自然科学基金项目(40675073)

摘　　要：为了跟踪研究北京2008年奥运会期间奥运村大气污染物浓度的变化,2008年6月1日─9月30日,利用符合国际标准的在线观测仪器,对奥运村站大气中主要污染物进行加强观测.结果表明:奥运会期间奥运村站大气中φ(NO2),φ(SO2),ρ(PM2.5)和ρ(PM10)分别比奥运会前(7月1日─8月7日)下降了11.2%,46.7%,57.0%和50.0%;比残奥会后时段(9月20─30日)分别下降了41.7%,31.8%,21.6%和28.6%;与2007年同期相比,奥运会时段的φ(NO2),φ(O3),ρ(PM2.5)和ρ(PM10)分别下降了38.8%,37.2%,42.1%和68.0%;残奥会时段分别下降了17.8%,27.5%,44.0%和64.1%.除对污染源严格的控制措施取得了良好的效果外,有利的天气过程也是奥运会期间北京空气质量全面达标的重要原因.In order to investigate the variation characteristics of atmospheric pollution in the Olympic Village during the Beijing 2008 Olympic Games period, an observation station was located on the roof of a six-floor building in the Institute of Remote Sensing Applications, Chinese Academy of Sciences, about 400 m northwest of the Beijing National Stadium. The station is called the Olympic Village station. Automated instruments which conform to international standards were used to measure the concentration of NO2 , O3 , SO2 , PM2.5 and PMl0 online. The concentrations of the air pollutants NO2 , SO2 , PM2.5 and PM10 during the Olympic Games （August 8th-24th） decreased by 11.2% , 46. 7% , 57.0% and 50. 0% respectively relative to average concentrations from 1st July to 7th August. They decreased by 41.7% , 31.8% , 21.6% and 28.6% compared with the concentration in the period just after the Paralympics Games （September 20th-30th）. The concentrations of NO2, 03 , PM2.5 and PMl0 in the Beijing Olympic Games period decreased by 38.8% , 37.2% , 42. 1% and 68. 0% respectively compared with those in the same period of 2007. They decreased by 17.8% , 27.5% , 44.0% and 64. 1% respectively in the Beijing Paralympies Games period compared with those in the same period of 2007. Besides strict control of the emissions, advantageous meteorological conditions were also an important factor contributing to good air quality during the Beijing Olympic Games period.

关 键 词：北京奥运会 污染物 臭氧 氮氧化物 光化学反应 

分 类 号：X51[环境科学与工程—环境工程]