Atmospheric mercury measurements at Cape Point, South Africa

被引：27

作者：

Baker, PGL

Brunke, EG

Slemr, F

Crouch, AM

机构：

[1] Univ Stellenbosch, Dept Chem, ZA-7600 Stellenbosch, South Africa

[2] Dept Environm Affairs & Tourism, ZA-7600 Stellenbosch, South Africa

[3] Max Planck Inst Chem, Airchem Dept, D-55020 Mainz, Germany

[4] Univ Western Cape, Dept Chem, ZA-7535 Bellville, South Africa

[5] Fraunhofer Inst Atmospher Umweltforsch, D-82467 Garmisch Partenkirchen, Germany

来源：

ATMOSPHERIC ENVIRONMENT | 2002年 / 36卷 / 14期

基金：

新加坡国家研究基金会;

关键词：

total gaseous Hg; measurement; Southern Hemisphere; trend; background;

D O I：

10.1016/S1352-2310(01)00531-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The monitoring of total gaseous Hg (TGM) was established at the Cape Point Global Atmospheric Watch (GAW) station in September 1995. This paper presents the first data obtained until June 1999. Atmospheric Hg concentrations were found to be fairly homogeneous fluctuating between 1.2-1.4 ngm(-3). Whilst no significant diurnal variation is detectable, a slight seasonal variation with a TGM minimum in March-May and maximum in June-August was observed. A minimum annual TGM concentration was detected in 1997, 1 year later than observed at the Wank summit in the Northern Hemisphere (NH). The Cape Point GAW station was found to constitute a suitable site for monitoring TGM concentrations in the Southern Hemisphere (SH). (C) 2002 Published by Elsevier Science Ltd.

引用

页码：2459 / 2465

页数：7

共 28 条

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