Abstract
The growth of the urban area of Paragominas is causing problems for water resources. This was observed due to the lack of data on the water quality of the Paragominas stream, in the urban stretch. This gap needs to be filled, which is why this research was conducted on this stream and this stretch. The aim was to verify the state of water quality using six parameters (five physical: temperature, electrical conductivity, total dissolved solids, turbidity and hydrogen potential; one chemical, dissolved oxygen) in five areas (A1, A2, A3, A4, A5), in the three sections (SI - right bank; SII - central channel; SIII - left bank). The methodology used was investigative with a qualitative approach. Primary data was obtained using electrometric instruments (multi-parameter probe, turbidimeter and thermometer with a probe). The data obtained and analyzed indicated that the water temperature in the five areas had an average value above the annual forecast (± 26 ºC/year) for the municipality (29.0±3.3); electrical conductivity had the highest average value in A3 (390±41.0); TDS, in A1, had the highest average (256±13.9); turbidity, was more pronounced in A2 (24.1±15.1); DO, the lowest value occurred in A5 (0.3±0.6). After applying for the PCA, it was identified that, of the six parameters used, the ones that may be contributing most to the change in water quality are EC and TDS. Based on these observations and the values obtained, the urban stretch of the Paragominas stream is at risk of significant changes leading to pollution and perhaps contamination.
Published Version
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