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Change in water quality in an Amazonian microbasin: ecological and human health implications.
Batista, Louisiane Farias; Rocha do Nascimento, Thiago Shinaigger; Costa, Igor; Correa, Edinelson Saldanha; Monte, Christiane do Nascimento.
Afiliação
  • Batista LF; Bachelor of Science and Water Technology, Federal University of Western Pará, Av Mendonça Furtado, 2946, Santarém, PA 68040-070, Brazil.
  • Rocha do Nascimento TS; Bachelor of Science and Water Technology, Federal University of Western Pará, Av Mendonça Furtado, 2946, Santarém, PA 68040-070, Brazil.
  • Costa I; Department of Geology, Federal University of Western Pará, Av. Vera Paz, s/n. Salé, Santarém, PA 68035-110, Brazil.
  • Correa ES; Department of Petroleum Exploration and Production, Universidade Federal do Pará, St. Raimundo Santana Cruz, PA 68721-000 Salinópolis, Brazil.
  • Monte CDN; Department of Geology, Federal University of Western Pará, Av. Vera Paz, s/n. Salé, Santarém, PA 68035-110, Brazil E-mail: christiane.monte@yahoo.com.br; christiane.monte@ufopa.edu.br.
J Water Health ; 22(3): 522-535, 2024 Mar.
Article em En | MEDLINE | ID: mdl-38557568
ABSTRACT
The decline in the quality of water resources in the Amazon is very rapid in cities suffering from unplanned urban growth. The region has two defined seasons, winter (wet) and summer (dry), which directly affect the behavior of contaminants in aquatic ecosystems. The aim of this study was to assess the ecological and human health risks associated with the use of the watershed. In addition, an ecological index was proposed the Quality Index for Aquatic Life, for the risk of contaminants to aquatic life. Sampling was carried out at six points in the Juá watershed. Physicochemical parameters, major anions, metals and total phosphorus were analyzed at both stations between 2020 and 2021. The highest concentrations of contaminants were found in the rainy season, due to the washing away of the banks. In this sense, Cl presented a concentration more than 307 times higher than that permitted by Brazilian legislation (wet). The ecological index showed that the watershed has a high risk of metals such as Cr III and Cr VI for the biota. The human health risk analysis showed a low risk; however, the lack of basic sanitation in the city indicates that monitoring of urban water resources is necessary.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Metais Pesados Limite: Humans País/Região como assunto: Asia Idioma: En Revista: J Water Health Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Metais Pesados Limite: Humans País/Região como assunto: Asia Idioma: En Revista: J Water Health Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido