Analysis of aerosol composition at Cheju Island, Korea, using a two-bin gas-aerosol equilibrium model

被引：14

作者：

Hayami, H ^{[1
]}

Carmichael, GR ^{[1
]}

机构：

[1] UNIV IOWA,IATL,CTR GLOBAL & REG ENVIRONM RES,IOWA CITY,IA 52242

来源：

ATMOSPHERIC ENVIRONMENT | 1997年 / 31卷 / 20期

基金：

美国国家航空航天局;

关键词：

East Asia; aerosol chemical composition; thermodynamic equilibrium; partitioning;

D O I：

10.1016/S1352-2310(97)00103-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Aerosol chemical composition data measured at Cheju Island, Korea from March 1992 to December 1994 are analyzed with a gas-aerosol equilibrium model. The aerosol composition is divided into fine and coarse modes, with each mode assumed to be in equilibrium with the gas phase. The model represents the mean aerosol composition. The particulate ammonium is found to exist mostly in the fine mode to neutralize nss-sulfate, and the particulate nitrate and chloride are present mostly in the coarse mode and compete with each other to share sea salt and mineral cations. This means little formation of ammonium nitrate and chloride. Sensitivity analyses suggest that the aerosol in this region will be more deficit in chloride due to dechlorination and ammonium nitrate associated with the fine mode may become important. (C) 1997 Published by Elsevier Science Ltd.

引用

页码：3429 / 3439

页数：11

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