Avaliação de parâmetros físico-químicos e bacteriológicos das águas subterrâneas da Floresta Nacional de Ipanema, Iperó-SP
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Data
2021-08-31
Autores
Coelho, Cecília Maria de Paula
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Universidade Estadual Paulista (Unesp)
Resumo
A água é um recurso imprescindível para a subsistência e desenvolvimento da humanidade. Porém, seu uso indiscriminado tem gerado uma problemática no abastecimento. Dessa maneira, a utilização de águas de poços tem sido considerada uma solução temporária para tal problema. Tornando-se necessários estudos para determinar a qualidade dessa água visando a segurança daqueles que a consomem. Este estudo teve por objetivo diagnosticar parâmetros físico-químicos e bacteriológicos de dois poços tubulares localizados na Floresta Nacional de Ipanema e outros dois poços localizados no assentamento Ipanema I na Zona de Amortecimento desta unidade de conservação, comparando os dados obtidos nos períodos de seca e chuva. A Flona de Ipanema está localizada entre os municípios de Aracoiaba da Serra, Iperó e Capela do Alto no Estado de São Paulo, Brasil. As amostras foram coletadas nos meses de agosto/2019, setembro /2019, dezembro/2019 e janeiro/2020. Foram avaliados os parâmetros temperatura, pH, oxigênio dissolvido, condutividade elétrica, coliformes termos tolerantes, Cálcio, Magnésio, Potássio, Sódio, Cloreto, Sulfato, Fosfato, Nitrato, Brometo, Fluoreto, Lítio e Amônio. Os valores obtidos foram comparados aos valores máximos permitidos (VMP) para cada padrão, estabelecidos pelas legislações: Resolução do CONAMA nº 357 de 2005, Resolução do CONAMA nº 396 de 2008 e a Portaria de Consolidação nº 5 de 28 de setembro de 2017, anexo 20, apresentando resultados dentro dos valores máximos estipulados pela legislação com exceção do pH nos pontos 3 e 4, do Nitrato e coliformes termo-tolerantes no ponto 4. A análise através do diagrama de Piper classificou as águas como bicarbonatadas sódicas.
Water is an essential resource for humankind's livelihood and development. However, its indiscriminate use has generated a problem in supply. Thus, the use of water from wells has been considered a temporary solution to this problem. Making studies necessary to determine the quality of this water aiming at the safety of those who consume it. This study aimed to diagnose physicochemical and bacteriological parameters of two tubular wells located in the Ipanema National Forest and two other wells located in the Ipanema I settlement in the Buffer Zone of this conservation unit, comparing data obtained in periods of drought and rain. Flona de Ipanema is located between the municipalities of Aracoiaba da Serra, Iperó and Capela do Alto in the State of São Paulo, Brazil. The samples were collected in the months of August/2019, September/2019, December/2019 and January/2020. The parameters temperature, pH, dissolved oxygen, electrical conductivity, coliform tolerant terms, Calcium, Magnesium, Potassium, Sodium, Chloride, Sulfate, Phosphate, Nitrate, Bromide, Fluoride, Lithium and Ammonium were evaluated. The values obtained were compared to the maximum allowed values (VMP) for each standard, established by the legislation: CONAMA Resolution No. 357 of 2005, CONAMA Resolution No. 396 of 2008 and Consolidation Ordinance No. 5 of September 28, 2017, annex 20, presenting results within the maximum values stipulated by legislation, with the exception of pH in points 3 and 4, Nitrate and thermo-tolerant coliforms in point 4. The analysis through the Piper diagram classified the waters as sodium bicarbonate.
Water is an essential resource for humankind's livelihood and development. However, its indiscriminate use has generated a problem in supply. Thus, the use of water from wells has been considered a temporary solution to this problem. Making studies necessary to determine the quality of this water aiming at the safety of those who consume it. This study aimed to diagnose physicochemical and bacteriological parameters of two tubular wells located in the Ipanema National Forest and two other wells located in the Ipanema I settlement in the Buffer Zone of this conservation unit, comparing data obtained in periods of drought and rain. Flona de Ipanema is located between the municipalities of Aracoiaba da Serra, Iperó and Capela do Alto in the State of São Paulo, Brazil. The samples were collected in the months of August/2019, September/2019, December/2019 and January/2020. The parameters temperature, pH, dissolved oxygen, electrical conductivity, coliform tolerant terms, Calcium, Magnesium, Potassium, Sodium, Chloride, Sulfate, Phosphate, Nitrate, Bromide, Fluoride, Lithium and Ammonium were evaluated. The values obtained were compared to the maximum allowed values (VMP) for each standard, established by the legislation: CONAMA Resolution No. 357 of 2005, CONAMA Resolution No. 396 of 2008 and Consolidation Ordinance No. 5 of September 28, 2017, annex 20, presenting results within the maximum values stipulated by legislation, with the exception of pH in points 3 and 4, Nitrate and thermo-tolerant coliforms in point 4. The analysis through the Piper diagram classified the waters as sodium bicarbonate.
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Palavras-chave
Águas subterrâneas, Unidades de conservação, Poços