北京某区域儿童夏季PM2.5的污染特征及分析

近年来,随着社会和经济的不断发展,人们对室内外空气质量的重视程度也不断提高。室内外空气质量尤其是细颗粒物污染与人群健康密切相关。北京市大气细颗粒物污染形势十分严峻,因此,相关研究也成为国内外研究的热点和难点问题。本文对北京市某区域年龄在9～11岁之间的38名健康儿童人群活动场所夏季PM2.5的污染特征作了研究评价。结果表明,运用室内外环境监测与问卷调查法相结合的研究方法,儿童人员夏季PM2.5室内外浓度呈现明显的时间、空间变化特征,并受到气象因素及室内外源排放的共同影响。

PM2.5 Pollution Characteristics and Analysis on Children Play Field in Summer Beijing

With rapid development of economy and society,more attention has been paid to indoor and outdoor air quality due to its close association with health.The research on fine particles pollution has become one of the most popular and important environmental research fields,particularly in big cities like Beijing,because of the large population and severe air pollution.The PM2.5 pollution characteristics of a Beijing play field of 38 children between 9-11 years old in summer were studied.Concurrent outdoor and indoor pollution were monitored,and time-activity data were collected from each subject.The outdoor and indoor concentrations of PM2.5 showed temporal variation,and were affected by meteorological conditions,as well as indoor and outdoor emission sources.