Use of legal reserve areas as geochemical background in hydrosedimentology studies¹

Revista Brasileira de Ciência do Solo

Carlos Roberto Juchen²  Márcio Antônio Vilas Boas¹  Cristiano Poleto¹  Maurício Macedo¹ 

[1] ,UTFPRToledo PR ,Brasil

关键词: natural heavy metal levels;    conservation areas;    environmental quality;    teores naturais de metal pesado;    áreas de preservação;    qualidade ambiental;   

DOI  :  10.1590/S0100-06832014000600029

来源: SciELO

【 摘 要 】

In hydrosedimentology studies the determination of the trace element concentrations at the study site is imperative, since this background can be used to assess the enrichment of sediments with these elements. This enrichment can be the result of the natural process of geological formation or of anthropogenic activities. In the latter case, guidelines are used to indicate the concentrations at which trace elements cause ecotoxicity effects on the environment. Thus, this study used legal reserve areas in the municipality of Toledo, PR, where natural forests are maintained, with no or minimal human interference to establish background levels. The results of atomic emission spectrometry with inductively coupled argon plasma showed that the legal reserves have lower levels of trace elements than other theoretical references, but equivalent concentrations to the safety levels recommended by international guidelines. It was concluded that determining values is fundamental to recommend this background as scientific database for research in the area of hydrosedimentology of this site and also as a way of environmental management of the watershed of this municipality.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License