Mercury in Amazonian fish from Madeira River basin, Rondônia State, Brazil

Autor:	Daniel Marcos Bonotto, Pas Gali, E. G. da Silveira, Wanderley Rodrigues Bastos
Rok vydání:	2005
Předmět:	Fishery geography geography.geographical_feature_category chemistry Environmental protection Amazon rainforest Amazonian Drainage basin chemistry.chemical_element Alluvium World health Mercury (element)
Zdroj:	Environmental Health Risk III.
ISSN:	1743-3525 1747-4485
DOI:	10.2495/ehr050261
Popis:	This investigation was carried out at the Madeira River basin, located in the state of Rondonia, Brazilian Amazon. Fish from Madeira, Jaciparana, and Jamari rivers between 7 and 11° parallels south and between 62 and 65° meridians west in Rondonia state, Brazil, were sampled and chemically analyzed for mercury in order to evaluate if the inputs of this metal into the food-chain is occurring in levels reaching values above those recommended by the World Health Organization. This is because such an element is very dangerous when ingested by humans and its presence was extensively identified some years ago in the area, since it was utilized as an amalgam in processes for recovering alluvial gold.
Databáze:	OpenAIRE
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