文档介绍：中国环境科学 2002,22(6) 506~510 China Environmental Science 北京PM 10TSP的关系杨复沫,贺克斌*,马永亮,张强,余学春(清华大学环境科学与工程系,北京 100084) 摘要在连续2年进行累积1周同步采样的基础上,~346?g/m, 浓度具有明显的季节变化特征,即冬季最高, TSP的比值均在冬季最高,春季最低,反映采暖燃烧源对细颗粒物的贡献较大,而沙尘天气对粗颗粒物的贡献较大;其年均值分别为55%和29%. 关键词细颗粒物(PM)质量浓度时间变化可吸入颗粒物(PM)总悬浮颗粒物中图分类号 文献标识码 A 文章编号1000-6923(2002)06-0506-05 Variation characteristics of PM concentrationand its relationship with PM 10 and TSPin Beijing. YANG Fu-mo, HE Ke-bin, MA Yong-liang, ZHANG Qiang, YU Xue-chun(Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China). China Environmental Science. 2002,22(6) 506~510 AbstractBased on two years simultaneous one-week integrated sampling, in two downtown/residential sampling sites in Beijing, PM concentration and its temporal variation feature inambientair were analyzed. Weekly PM average concentrations ranged from 37to 346μg/m 3 and the annual average was near or over the second class annual average standard of PM 10. PM concentration possessed markedlythe variation featurewith highest in winter and lowest in summer. Weekly and seasonal variations of PM concentrations were similar between the two sampling sites. Both PM to PM 10 and PM to TSP