fevereiro 2015 vol. 1 num. 2 - XX Congresso Brasileiro de Engenharia Química

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WATER QUALITY AND SEDIMENT RELATED TO THE OCCURRENCE OF AQUATIC MACROPHYTES IN LAGOA DA FRANCESA (PARINTINS -AM)

KIMURA, S. P. R.; PASCOALOTO, D.; VEIRA, M. G. A.;

Artigo:

SUMMARY – The quality of water and sediment (organic matter) compartments of a pond and a lake located in the Amazon basin was analyzed, based on limnological variables such as nutrients (nitrogen and phosphorus), and dissolved oxygen, pH, turbidity and suspended solids from water, and particle size distribution for the sediment. The occurrence of macrophytes was related to the quality of the compartments. Samples of water, sediment and macrophytes were collected in July and September 2012. The variables of water and sediment demonstrate their respective stages of preservation and pollution, in addition to demonstrating the anthropogenic influence on the quality of the compartments in the pond. The occurrence of aquatic macrophytes is associated to the provision of nutrients and can be used as a biological indicator of environmental quality. The sediment showed high contents of silt and clay, favorable to the accumulation of nutrients. Nitrogenous compounds (ammonia, nitrite and nitrate) indicated a recent pollution. Lower concentrations of dissolved oxygen (July 2012) are attributed to a high organic load carried by the excess of volume of rain during this period.

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DOI: 10.5151/chemeng-cobeq2014-1427-19361-176231

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Como citar:

KIMURA, S. P. R.; PASCOALOTO, D.; VEIRA, M. G. A.; "WATER QUALITY AND SEDIMENT RELATED TO THE OCCURRENCE OF AQUATIC MACROPHYTES IN LAGOA DA FRANCESA (PARINTINS -AM)", p. 8725-8732 . In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 2359-1757, DOI 10.5151/chemeng-cobeq2014-1427-19361-176231

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