Evaluation of the potability quality of groundwater in rural areas in the municipality of Humaitá/AM
DOI:
https://doi.org/10.6008/CBPC2179-6858.2021.001.0058Keywords:
Well Water, Water Quality, Hydric Security, Terra Firme, VárzeaAbstract
The objective of this research was to evaluate the physical, chemical and biological characteristics of groundwater from the wells of rural communities in the municipality of Humaitá (AM) – in terra firme (Ipixuna and Realidade) and várzea (Paraíso Grande) – in order to provide data as a subsidy for water security and compare with potability standards. Two collections were carried out in the dry season, in August 2017, and another one in the rainy season, in March 2018. The analyzed parameters were physical (temperature, color, conductivity, turbidity and total dissolved solids), chemical (pH, alkalinity, hardness, chloride, nitrite, nitrate, iron, manganese and sulfate) and microbiological (thermotolerant coliforms and Escherichia coli). The results presented values lower than the limits established by Ministry of Health Consolidation Ordinance No. 5 (BRAZIL, 2017), except the color parameter of the samplhe of the rural community of Paraíso Grande and lower pH in all communities. The characteristic of the formation of allvial deposits that has is its characteristic the presence of iron and organic matter, probably changed the water color of the community Paraíso Grande. The wells in the terra firme areas presented a better groundwater quality than the floodplain area, probably due to the geological feature.
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