Qualidade da água para consumo humano em poços semi artesianos na cidade de Lábrea/AM

Abstract

The disorderly urban growth of cities results in the contamination of surface and groundwater. In Brazil, one of the main challenges in sanitation is providing potable water to the population. In the Amazonian context, the challenge is even more pronounced due to the vastness and complexity of the region, where the sanitation infrastructure is insufficient, and the preservation of water resources is crucial for maintaining the local ecosystem. Given this, the objective of this study was to evaluate the quality of water for human consumption in the municipality of Lábrea/AM. Six sampling points were selected at different locations in the urban area of the municipality of Lábrea, including two public wells and four private wells. Physical-chemical and microbiological analyses were conducted to determine variables: temperature, turbidity, pH, total dissolved solids, dissolved oxygen, total phosphorus, total coliforms, and thermotolerant coliforms. The results were compared with the Ministry of Health Ordinance No. 888/2021. The variables total dissolved solids, total phosphorus, and temperature presented values within the permitted limits by legislation. On the other hand, it is worth noting that out of the six sampled points, four indicated the presence of coliforms, and location 4 presented the presence of total and thermotolerant coliforms. The detection of pathogenic agents in the water requires urgent control measures, whether through awareness actions for the population, continuous cleaning of household reservoirs, or in the water distribution pipelines, as one of the possible consequences of ingesting non-potable water would be the high numbers of waterborne diseases.