Water quality analysis of Índios river, Presidente Getúlio, SC, Brazil
DOI:
https://doi.org/10.6008/CBPC2179-6858.2021.001.0030Keywords:
Water quality, Ãndios river, Physico-chemical analysis, MetalsAbstract
Water is an essential resource to all human activities. This fact makes it relevant to study its availability as well as its quality. The objective of this work is to evaluate the water quality of Rio dos Índios river. This water course is located in the municipality of Presidente Getúlio, SC-Brazil. The water samples were analyzed for physico-chemical tests (dissolved oxygen-DO, temperature, nitrate, nitrite, turbidity, pH, true color and BOD5) and series of metals (aluminum, manganese, antimony, arsenic, cadmium, lead, cobalt, chromium, strontium, iron, molybdenum, silver, thallium, vanadium and zinc). The survey was carried out in five sampling points through the water course comprehending the rural zone, the urban perimeter, and the borderline between both. Methods statistical data (ANOVA), on the other hand, enabled the verification of which parameters most varied in relation to the sampling points during the collection period. The results for physico-chemical parameter (BOD5 > 5 mg L-1) and metals (aluminum, manganese, arsenic and iron) surpassed the thresholds stablished by the CONAMA resolution 357/2005. The results presented within this work point out potential sources of contamination to the Rio dos Índios river as a resultant from the urbanization, industrial and agricultural activities near the region.
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