PRESENCIA DE MERCURIO EN EL AGUA Y SEDIMENTO DE FONDO EN EL RÍO NANAY, PERÚ
DOI:
https://doi.org/10.24841/fa.v14i2.406Keywords:
contaminación, mercurio, río Nanay, agua, sedimentos, AmazoníaAbstract
Evaluaciones de mercurio en el agua y sedimentos de fondo del río Nanay, afluente izquierdo del río Amazonas, ha determinado un claro incremento de las concentraciones promedio que oscilan entre <20 ng/l en el año 2000 a 120 ng/l en el 2001. Se identifican lugares con concentraciones superiores a los límites máximos permisibles para aguas de zonas de pesca de mariscos bivalvos (Tipo V) y aguas de zonas de preservación de fauna acuática y pesca recreativa o comercial (Tipo VI) regulados en el Perú. Los sedimentos de fondo presentan concentraciones entre 0.005 a 0.0815 ìg/g, valores considerados por debajo de los límites máximos permisibles establecidos por la EPA (Environmental Protection Agency). En general las fuentes de mercurio del agua provienen parcialmente de los sedimentos del fondo del río debido a su remoción durante la extracción del oro aluvial.Downloads
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