Avaliação dos parâmetros físicos T, Turb e químicos NH4+, NO3-, OD, pH da qualidade de água do rio Chicamba Manica em julho e outubro 2017 para conservação da vida aquática

Abstract

The present work evaluates the chemical and physical characteristics of water in July and October in the Chicamba River, and the following physical parameters were analyzed: temperature and turbidity, chemical: pH, ammonium, nitrate and oxygen dissolved in the laboratory of the FIPAG of the administrative post of Messica using the right method described in the manual APHA, AWWA, WPCF (1992), the method consists in the introduction of reagents corresponding to each sample (ammonium and nitrate) and its analysis through a Spetro Directo / PC spetro II -6b, 08/2011. After the physical and chemical analysis in two months at the three points, it was possible to verify that in July there was a significant increase in the chemical parameter, such as ammonium, with a mean of 5.01 mg / l, and a non-significant decrease of oxygen dissolved in P2 with the value of 4.99 mg / l, but its mean and 6.41 mg / l, and this is satisfactory. It is concluded that ammonium concentrations in the month of July are not acceptable for the conservation of aquatic life, and generally for all other grounds mentioned in the study are satisfactory for the conservation of aquatic life (CONAMA, 2005).