BASE-LINE ATMOSPHERIC MERCURY STUDIES AT ROSS ISLAND, ANTARCTICA

被引：22

作者：

DEMORA, SJ

PATTERSON, JE

BIBBY, DM

机构：

[1] Chemistry Department, University of Auckland, Auckland

[2] Industrial Research Ltd, Lower Hutl

来源：

ANTARCTIC SCIENCE | 1993年 / 5卷 / 03期

关键词：

ANTARCTICA; ATMOSPHERE; MERCURY; BASE-LINE; SPECIATION;

D O I：

10.1017/S0954102093000410

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The first extended baseline studies of total gaseous mercury (TGM) and dimethylmercury (DMM) in Antarctica are reported. Mean TGM concentrations of 0.52, 0.60 and 0.52 ng m-3 were obtained for three consecutive years at the southern tip of Ross Island (77-degrees-S). The levels of DMM in Antarctica are less than 10% of the TGM, and frequently fall below the limit of detection. These results represent the lowest TGM concentrations recorded globally and extend into polar regions the observation of a decrease in atmospheric mercury concentration with increasing latitude.

引用

页码：323 / 326

页数：4

共 22 条

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