北京城区不同绿化覆盖率和绿地类型与空气中可吸入颗粒物(PM10)

Inhalable Particulate Matter (PM10) Related to Different Green Cover Percentage and Greenbelt Types in Beijing

以探讨北京城区绿化覆盖率和绿地类型与空气中PM1O之间的关系为目的,选取了方庄小区、天坛公园、东四六条、全国农业展览馆、国家奥林匹克体育中心、北京市市委党校、清华大学等北京城区7个代表地点,各地点又选取了不同的绿地类型。从2001年1月至2003年1月,历经2年,定期测定了空气中的PM1O。结果表明,提高总体绿化覆盖率和营造合理的绿地类型能够在一定程度上降低城区空气中的PM10浓度,提高空气质量。

This work was performed for 2 years from January 2001 to January 2003. lt aimed to investigate the effects of virescence overlay rates and greenbelt types on inhalable particulate matter with aerodynamic diameters < 10μm, PM10 in Beijing downtown. For sampling of PM10 seven areas were chosen, which were Fangzhuang Area, Tiantan Park, Dongsi Area, China Agricultural Exhibition Hall, National Olympic Center of China, Party School of CPC Beijing Municipal Committee, and Tsinghua University, and several typical greenbelt types were chosen in each area. The results indicated that PM10 concentration could be decreased in a certain extent, and the quality of air in downtown of Beijing could be improved by increase of virescence overlay rate and making suitable greenbelt types.