Mercury levels in the sediment, water, and selected finfishes of Laguna Lake, the Philippines
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Monthly samples of sediment, water and commercially important species of fish, primarily Oreochromis niloticus and Chanos chanos , plus a few other species, were collected from the West Bay area of Laguna Lake, The Philippines from January to December 1987. Mercury levels were determined in all samples by cold vapor atomic absorption spectrophotometry. Results showed that sediment samples contained mercury levels ranging from 26.7 to 117 ppb. Mercury levels in water samples were low, ranging from below detectable to 0.5670 ppb. The mercury levels in the water were negatively correlated with conductivity and dissolved oxygen and positively correlated with turbidity. The mercury burden of the fish species samples was below the maximum permissible level set by the WHO and USFDA of 0.05 ppm. No direct correlation was observed between mercury levels in sediment and water, water and fish and sediment and fish.
Cuvin-Aralar, M. L. A. (1990). Mercury levels in the sediment, water, and selected finfishes of Laguna Lake, the Philippines.
Aquaculture, 84(3-4), 277-288. https://doi.org/10.1016/0044-8486(90)90093-3
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