FREQUENCY-DISTRIBUTIONS OF PM(10) CHEMICAL-COMPONENTS AND THEIR SOURCES

被引：72

作者：

KAO, AS ^{[1
]}

FRIEDLANDER, SK ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES, DEPT CHEM ENGN, LOS ANGELES, CA 90024 USA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1995年 / 29卷 / 01期

关键词：

D O I：

10.1021/es00001a003

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The frequency distributions and statistical properties of the chemical components of PM(10) and their sources in the South Coast Air Basin (SoCAB) were analyzed from several year-long studies. The non- reactive aerosol components of PM(10) have approximate ly log normal frequency distributions and constant values of geometric standard deviation (GSD) regardless of source type and location. Some major components of PM(10) behave differently from the total mass, resulting in a decreased variability for-the total mass compared with the variability of the major components. The frequency distributions of the source contributions, as computed from a chemical mass balance(CMB) receptor model, showed approximately log normal behavior for most sources. There is evidence of bimodal frequency distributions for the crustal source of PM(10) at certain locations, possibly indicating contributions from several different sources that have similar chemical profiles.

引用

页码：19 / 28

页数：10

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