A COMPARISON OF CHARACTERISTICS OF AEROSOL FROM DUST STORMS IN CENTRAL-ASIA WITH SOIL-DERIVED DUST FROM OTHER REGIONS

被引：102

作者：

GOMES, L ^{[1
]}

GILLETTE, DA ^{[1
]}

机构：

[1] UNIV PARIS 07, PHYSICOCHIM ATMOSPHERE LAB, CNRS, UA 1404, F-75251 PARIS, FRANCE

来源：

ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS | 1993年 / 27卷 / 16期

关键词：

AEROSOLS; SOIL-DERIVED DUST; CHEMISTRY; MINERALOGY; SOVIET CENTRAL ASIA;

D O I：

10.1016/0960-1686(93)90027-V

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Aerosol samples from dust storms were collected in Tadzhikistan (Soviet Central Asia)during September 1989, as a part of the joint U.S.S.R.-U.S. Dust Experiment. Physico-chemical characteristics of deposited dust were compared with those of soil-derived dust collected in other regions. Particle mass-size distributions appear to be characterized by a common log-normal mode between 1 and 10 mu m. Chemical composition of the sampled material shows that the dust is particularly rich in calcium and silicon and poor in iron. Estimated mineral composition of dust indicates that this enrichment in Ca and Si for the Soviet Asian dust must be related to high contents of carbonate and quartz, respectively. Different Fe/Al also suggest a specific chemical composition for clay minerals in the Asian dust.

引用

页码：2539 / 2544

页数：6

共 36 条

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