期刊
ECOLOGICAL INDICATORS
卷 9, 期 6, 页码 1156-1162出版社
ELSEVIER
DOI: 10.1016/j.ecolind.2009.01.004
关键词
Atmospheric pollution; Bioaccumulation; Biomonitoring; Cadmium; Coal; Heavy metal; Indicator species; Sulphur
The impact of Candiota coal-fired thermal power plant on air quality was evaluated during two years by means of passive biomonitoring. The monitoring consisted of the quarterly collection of leaf samples of Baccharis dracunculifolia, Elephantopus mollis, Eryngium horridum, Pospalum notatum and Piptochaetium montevidense or the shoot of Baccharis trimera at five sites located in the area around the power plant. The element load of these plants was used as indicator for atmospheric pollution. In the samples collected, sulphur and heavy metal cadmium contents were measured. Among the species evaluated, E. mollis presented the highest potential to accumulate metal, followed by B. trimera. The Aeroporto and AFUCAN sampling sites, located in the prevailing wind directions, presented the highest level of metal contamination. (C) 2009 Elsevier Ltd. All rights reserved.
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