Evaluation of the environmental impact of volcanic emissions from the chemistry of rainwater: Mount Etna area (Sicily)

被引：38

作者：

Aiuppa, A

Bonfanti, P

Brusca, L

D'Alessandro, W

Federico, C

Parello, F

机构：

[1] CNR, Ist Geochim Fluidi, I-90146 Palermo, Italy

[2] Univ Palermo, Dipartimento CFTA, I-90123 Palermo, Italy

[3] Univ Catania, Dipartimento Sci Geol, I-95129 Catania, Italy

来源：

APPLIED GEOCHEMISTRY | 2001年 / 16卷 / 7-8期

关键词：

D O I：

10.1016/S0883-2927(00)00075-5

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The S, halogen and NO3 contents of rainwater samples from the Etnean area were studied in order to define the environmental impact of plume emissions on the local environment. Samples, collected on a network of 11 bulk rain gauges, show significant variability in anion content, which can be ascribed to different meteorological and environmental conditions at each sampling site and to a variable distance from the different source areas. Data analysis suggests that S, F, Cl and Br are mainly magma-derived, whereas NO3 mainly originates from anthropogenic sources. Samples collected from sites close to craters display considerable temporal variability, with increased anion concentrations being recorded during periods of intense plume degassing. Variations in precipitation also induce significant modifications in the chemistry of the meteoric-derived Etnean groundwaters. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：985 / 1000

页数：16

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