Multi-indicators and evidence of Cytotoxicity—a case study of a stream in central Brazil
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Data
2022-09
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(1) Background: Aquatic systems are important to the community and the environment,
requiring careful assessment, including the monitoring of their waters. Cities are usually built close
to aquatic systems, which serve as a source of water for the entire population. With the uncontrolled
increase in cities, aquatic environments receive a great pollutant load. (2) Methods: In this context,
the present study aimed to evaluate water contamination, evaluating multi-indicators, cytotoxicity
and mutagenicity and conducting a multivariate analysis on the João Leite stream in central Brazil.
(3) Results: It was demonstrated, by means of multi-indicators of water quality, that according
to the CONAMA classification, current Brazilian legislation and the purpose of the João Leite
stream, the water quality met some parameters (i.e., turbidity, dissolved oxygen, and bacteriological);
however, in some samples, the quality was poor or very poor. Samples collected in the rainy season
indicated cytotoxicity, probably due to pollutants dragged by the rain into the stream. Based on
multivariate and association analysis, we suggest that the João Leite stream presents anthropogenic
pollution. (4) Conclusions: This study provides data for the development of prevention, control
and environmental management policies. In addition, we demonstrate that the use of multivariate
statistical analyses can provide data on water pollution, its source of pollution and the association
between pollutants.
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Water pollution, Toxicological parameters, Aquatic biomonitoring, Cerrado, Physicochemical and microbiological water quality
Citação
GOMES, Raylane Pereira et al. Multi-indicators and evidence of Cytotoxicity—a case study of a stream in central Brazil. Water, [s. l.], v. 14, n. 19, e2974, 2022. DOI: 10.3390/w14192974. Disponível em: https://www.mdpi.com/2073-4441/14/19/2974. Acesso em: 12 nov. 2024.