Origin and influence of PM10 in urban and in rural environments

被引：7
作者：
Kerschbaumer, A. [1 ]
Lutz, M. [2 ]
机构：
[1] FU Berlin, Inst Meteorol, Berlin, Germany
[2] Senate Dept Hlth Environm & Consumer Protect, Berlin, Germany
来源：
ADVANCES IN SCIENCE AND RESEARCH | 2008年 / 2卷
关键词：
D O I：
10.5194/asr-2-53-2008
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The paper presents an estimate of emission source influence on PM10 concentrations in Berlin. Particulate matter less than 10 mu m in aerodynamic diameter (PM10) is a conglomerate of different chemical components related to distinct sources and physico-chemical processes in the atmosphere and lithosphere. Emission reduction thus has temporally and spatially varying effects on different scales. Urban PM10 concentrations are heavily influenced by long range transport (up to 70%) from remote source areas, whereas rural air pollution is strongly determined by urban emissions. By means of emission reduction scenario simulations with a chemistry-transport-model it has been found that on average two third of the urban background concentrations in Berlin are due to Berlin-specific emissions. This percentage varies strongly considering primary and secondary components: only about 5% of secondary PM10 concentrations are related to local emissions, while approximately 70% of primary concentrations stem from the urban sources. City related emissions influence homogenously the rural air-pollution concentrations, but with different ranges of influence.
引用
收藏
页码：53 / 55
页数：3
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