RESUMO

The objective was to compare the types and concentrations of pesticides allowed in the water potability standard for human supply in Brazil with other countries considered to be the largest consumers of pesticides in dollars invested in purchase/trade. This is a descriptive and documentary study, with data collection in regulations available in official government websites in Brazil, USA, China, Japan, France, Germany, Canada, Argentina, India, Italy, and World Health Organization (WHO). Since Germany, France and Italy are part of the European Union (EU), the legislative resolution of the European Parliament was adopted. Pesticides number and maximum permitted values (MPV) differ between the countries and WHO. In the Brazilian ordinance there are forty pesticides, a number like the USA, Canada, China, and WHO, but that represents only 8% of the total pesticides registered for agricultural use in Brazil. When comparing the ordinance of Brazil with EU the values are only the same for Aldrin + Dieldrin. For other, amounts between 2 and 5000 times more are allowed in Brazil. Brazilian regulations do not establish a total value for the mixture of pesticides in water, only individual limits, which together can reach 1677.13 µg/L, while in EU standards it is only 0.5 µg/L. The study showed discrepancies of the pesticides allowed in water potability standard of the Brazil with other countries, but features 12 pesticides with the same concentrations as WHO guidelines, thus, a worldwide standardization in water potability regulations is necessary to promote health and reducing risk of exposure.

RESUMO

The Ore Treatment Unit was a uranium mining company that is currently being decommissioned. The local rainfall index makes it necessary to release effluents into the environment. After releasing, the wastewater is available for unrestricted use. Current study aims to use national and international recommendations to assess the radiological potability of released effluents at one of the three points of company's interface with the environment. Twenty-four samples of water were collected and activity concentrations (AC) were obtained by gross alpha count, gross beta count, and for arsenazo spectrophotometry. Statistical analysis techniques were applied to the data with the purpose of understanding the results for the soluble, particulate, and total fractions. The mean AC for effluents were 3.580, 0.082, 0.103, 0.063, and 0.090 Bq L-1 for Unat, 226Ra, 210Pb, 232Th, and 228Ra, respectively, for the total fraction. The analysis of variance pointed to Unat as a critical radionuclide, since it presented more than 90% of the total AC released into the environment. Pearson's R2 pointed to soluble fraction as a major contributor to the total AC released. The guidance level proposed by WHO was used to assess the radiological potability of the effluents. The results obtained indicated the need for trigger other analyses. Committed effective dose was estimated due to the unrestricted use of effluents and the value obtained, 0.23 mSv year-1, was below the maximum allowed limit. Finally, the radiotoxicity of the released effluent was evaluated and the value obtained was ~ 50% of the maximum allowed limit. In conclusion, the present study showed that the level of radioactivity released into the environment by the Ore Treatment Unit does not present a radiological risk to the surrounding population.

Assuntos

RESUMO

Environmental impacts on water resources and discharges of pollutants are some of the main problems of aquatic ecosystems. Currently, the Iguaçu River is considered the second most polluted river in Brazil, therefore, given the importance of understanding the effects of water pollution on living organisms, this study aimed to analyze the possible genotoxic effects in Astyanax bifasciatus (Characiformes; Characidae) and Geophagus brasiliensis (Perciformes: Cichlidae) in response to the water quality of the Iguaçu River. Four sampling points were determined on the Iguaçu River, with different levels of environmental impact. The micronuclei and nuclear abnormalities were quantified by counting 2000 erythrocytes from each specimen. There was a statistical difference in the frequency of nuclear abnormalities both for A. bifasciatus (Kruskal-Wallis 3;30 = 10.9; p = 0.01) and for G. brasiliensis (Kruskal-Wallis 3;26 = 12.27; p = 0.006), with point 1 (critically degraded) showing a higher frequency of nuclear abnormalities and point 4 (moderately degraded) showing a lower frequency of nuclear abnormalities for both species, showing genotoxic potential in fish erythrocytes. This result demonstrates the need for further discussion on the conservation of the Iguaçu River as well as broadening the discussion on its potability.

Assuntos

RESUMO

Water treatment plants (WTPs) are extremely important in basic sanitation services because of their association with human health by producing safe drinking water. Thus, their proper operation is of utmost relevance and has led to the development of distinct performance evaluation methodologies. Direct filtration is a leading technology applied in WTPs. However, although it costs less than conventional treatment, it might also be less flexible and robust. To evaluate performance with data from real-scale WTPs with direct filtration systems, the use of a statistical analysis methodology for turbidity, apparent color, and pH data from raw and effluent water is proposed. Reliability analysis, a probabilistic-based methodology, was applied for turbidity alongside evaluating the compliance of the treated water with different potability standards. The parameters pH (between 6.0 and 8.0) and apparent color (< 15 HU) showed almost complete compliance (> 99%). Reliability analysis could not be applied for apparent color and pH, while apparent color did not adhere to the lognormal distribution frequency. The turbidity results show high variability in the coefficients of variation and reliability among various plants and a general difficulty in complying with stricter standards, such as the 0.1 and 0.3 NTU defined by the United States Environmental Protection Agency. All WTP studies show a 95% compliance with the World Health Organization standard of 5.0 NTU. A higher value for the coefficient of reliability and a lower value for the variation coefficient could indicate a more stable process, regardless of the treated water quality, highlighting the relevance of applying combined methods for performance evaluation, such as compliance with established standards.

Assuntos

RESUMO

Avaliar a qualidade microbiológica da água potável consumida no Centro Universitário Barão de Mauá, em Ribeirão Preto-SP foi o objetivo deste artigo. Para determinação de bactérias heterotróficas foi realizada a técnica de Pour Plate e a identificação de Coliformes totais e termotolerantes por meio do reagente substrato cromogênico Colilert®. As análises foram realizadas nos dias 18 e 25 de setembro e 02 de outubro de 2017. Dos sete pontos analisados, um bebedouro apresentou valores de bactérias heterotróficas, superiores a 500 UFC/mL e não está de acordo com a Portaria nº 2914/2011, que dispõe sobre os procedimentos de controle e de vigilância da qualidade da água para consumo humano e seu padrão de potabilidade. As análise de Coliformes totais e termotolerantes apresentaram resultados ausentes em 100 mL de acordo com a Portaria. Este estudo reforça a necessidade de um constante monitoramento da qualidade microbiológica da água, visando os padrões adequados de potabilidade para consumo humano e então, prevenindo-se possíveis doenças.(AU)

Evaluating the microbiological quality of drinking water consumed at the Centro Universitário Barão de Mauá, in Ribeirão Preto, SP was the objective of this article. The determination of heterotrophic bacteria was carried out using the "Pour Plate" technique and the identification of total and thermotolerant Coliforms through the Colilert® chromogenic substrate reagent. The analyzes were carried out on September 18 and 25 and October 2, 2017. Of the seven points analyzed points analyzed, a drinking fountain had heterotrophic bacteria values higher than 500 CFU/ mL of heterotrophic bacteria and is not in accordance with Administrative Rule 2914/2011, which provides on the procedures for controlling and monitoring the quality of water for human consumption and its drinking water standard. The analyzes of total and thermotolerant Coliforms presented absent results in100 mL according to the Ordinance. This study reinforces the need for a constant monitoring of the microbiological quality of the water, aiming at the appropriate standards of potability for human consumption and then, preventing possible diseases.(AU)

Assuntos

RESUMO

RESUMO Este estudo teve por objetivo avaliar a influência de diferentes usos do solo no entorno de nascentes sobre alguns parâmetros de qualidade das águas de oito nascentes localizadas no Assentamento Paraíso, Alegre, Espírito Santo. As nascentes avaliadas consistiram em uma em meio à floresta remanescente de Mata Atlântica; seis cercadas e em diferentes estágios de recomposição florestal; e uma sem cerca e com acesso livre dos animais de criação. Três amostras de água foram coletadas em cada nascente entre 2011 e 2012, sendo analisados 17 parâmetros. Os valores determinados foram comparados com os padrões normativos para qualidade da água e correlacionados linearmente por meio do coeficiente de correlação. As águas das nascentes se mostraram aptas para o consumo, desde que previamente tratadas, e, quanto maior foram os trabalhos de proteção às nascentes, melhores foram os valores de qualidade de água.

ABSTRACT The objective of this study was to evaluate the influence of land use in the surrounding of the springs on some of the parameters of water quality in eight springs located in the Paraíso settlement in the city of Alegre, Espírito Santo, Brazil. The springs evaluated were: one in the Atlantic forest remnant; six fenced ones and in different stages of forest recovery; and one without a fence and with free livestock access. Three samples of water were collected in each spring in 2011 and 2012, and 17 parameters were analyzed. The determined values were compared to the normative standards for water quality and linearly correlated through the correlation coefficient. Water from the springs showed to be consumable, if previously treated, and the more protected the springs, the better the water quality values.

RESUMO

Avaliar a qualidade microbiológica da água potável consumida no Centro Universitário Barão de Mauá, em Ribeirão Preto-SP foi o objetivo deste artigo. Para determinação de bactérias heterotróficas foi realizada a técnica de Pour Plate e a identificação de Coliformes totais e termotolerantes por meio do reagente substrato cromogênico Colilert®. As análises foram realizadas nos dias 18 e 25 de setembro e 02 de outubro de 2017. Dos sete pontos analisados, um bebedouro apresentou valores de bactérias heterotróficas, superiores a 500 UFC/mL e não está de acordo com a Portaria nº 2914/2011, que dispõe sobre os procedimentos de controle e de vigilância da qualidade da água para consumo humano e seu padrão de potabilidade. As análises de Coliformes totais e termotolerantes apresentaram resultados ausentes em 100 mL de acordo com a Portaria. Este estudo reforça a necessidade de um constante monitoramento da qualidade microbiológica da água, visando os padrões adequados de potabilidade para consumo humano e então, prevenindo-se possíveis doenças.

Evaluating the microbiological quality of drinking water consumed at the Centro Universitário Barão de Mauá, in Ribeirão Preto, SP was the objective of this article. The determination of heterotrophic bacteria was carried out using the "Pour Plate" technique and the identification of total and thermotolerant Coliforms through the Colilert® chromogenic substrate reagent. The analyzes were carried out on September 18 and 25 and October 2, 2017. Of the seven points analyzed points analyzed, a drinking fountain had heterotrophic bacteria values higher than 500 CFU/ mL of heterotrophic bacteria and is not in accordance with Administrative Rule 2914/2011, which provides on the procedures for controlling and monitoring the quality of water for human consumption and its drinking water standard. The analyzes of total and thermotolerant Coliforms presented absent results in 100 mL according to the Ordinance. This study reinforces the need for a constant monitoring of the microbiological quality of the water, aiming at the appropriate standards of potability for human consumption and then, preventing possible diseases.

Assuntos

RESUMO

Among the methods that are studied to eliminate nitrate from drinking water, biological denitrification is an attractive strategy. Although several studies report the use of denitrifying bacteria for nitrate removal, they usually involve the use of sewage sludge as biomass to obtain the microbiota. In the present study, denitrifying bacteria was isolated from bamboo, and variable parameters were controlled focusing on optimal bacterial performance followed by physicochemical analysis of water adequacy. In this way, bamboo was used as a source of denitrifying microorganisms, using either Immobilized Microorganisms (IM) or Suspended Microorganisms (SM) for nitrate removal. Denitrification parameters optimization was carried out by analysis of denitrification at different pH values, temperature, nitrate concentrations, carbon sources as well as different C/N ratios. In addition, operational stability and denitrification kinetics were evaluated. Microorganisms present in the biomass responsible for denitrification were identified as Proteus mirabilis. The denitrified water was submitted to physicochemical treatment such as coagulation and flocculation to adjust to the parameters of color and turbidity to drinking water standards. Denitrification using IM occurred with 73% efficiency in the absence of an external carbon source. The use of SM provided superior denitrification efficiency using ethanol (96.46%), glucose (98.58%) or glycerol (98.5%) as carbon source. The evaluation of the operational stability allowed 12 cycles of biomass reuse using the IM and 9 cycles using the SM. After physical-chemical treatment, only SM denitrified water remained within drinking water standards parameters of color and turbidity.

Assuntos

RESUMO

A água é um recurso natural indispensável à vida. É essencial à produção de alimentos, desenvolvimento econômico e promoção social. Em face de sua má qualidade, a água pode trazer riscos à saúde, servindo de veículo para vários agentes biológicos e químicos. No meio rural, os solos e as águas são muito utilizados para a produção agrícola e agropecuária, favorecendo sua contaminação. A falta de saneamento e cuidados com o meio ambiente, a presença de resíduos de materiais orgânicos e inorgânicos e as atividades diárias do trabalhador rural são alguns dos fatores predisponentes que podem afetar a sua qualidade. Na tentativa de atualizar informações acerca da qualidade da água no meio rural, este artigo se propôs a revisar a distribuição dos recursos hídricos, sobretudo no Brasil, aspectos legais, utilização da água na propriedade rural, bem como sua contaminação microbiológica e química.

Water is a natural resource essential to life. It is essential to foodproduction, economic development and social advancement. In the face of its poor quality, water can bring health risks, serving as a vehicle for anumber of biological and chemical agents. In rural areas, the soil andwater are widely used for agriculture and livestock, favoringcontamination. Lack of sanitation and care of the environment, thepresence of residues of organic and inorganic materials and daily activitiesof rural workers are some of the predisposing factors that can affect theirquality. In an attempt to update information about the water quality inrural areas, this article proposes to review legal aspects, water use on thefarm, as well as microbiological and chemical contamination.

Assuntos

RESUMO

A água é um recurso natural indispensável à vida. É essencial à produção de alimentos, desenvolvimento econômico e promoção social. Em face de sua má qualidade, a água pode trazer riscos à saúde, servindo de veículo para vários agentes biológicos e químicos. No meio rural, os solos e as águas são muito utilizados para a produção agrícola e agropecuária, favorecendo sua contaminação. A falta de saneamento e cuidados com o meio ambiente, a presença de resíduos de materiais orgânicos e inorgânicos e as atividades diárias do trabalhador rural são alguns dos fatores predisponentes que podem afetar a sua qualidade. Na tentativa de atualizar informações acerca da qualidade da água no meio rural, este artigo se propôs a revisar a distribuição dos recursos hídricos, sobretudo no Brasil, aspectos legais, utilização da água na propriedade rural, bem como sua contaminação microbiológica e química.(AU)

Water is a natural resource essential to life. It is essential to foodproduction, economic development and social advancement. In the face of its poor quality, water can bring health risks, serving as a vehicle for anumber of biological and chemical agents. In rural areas, the soil andwater are widely used for agriculture and livestock, favoringcontamination. Lack of sanitation and care of the environment, thepresence of residues of organic and inorganic materials and daily activitiesof rural workers are some of the predisposing factors that can affect theirquality. In an attempt to update information about the water quality inrural areas, this article proposes to review legal aspects, water use on thefarm, as well as microbiological and chemical contamination.(AU)

Assuntos

RESUMO

Foram realizadas análises microbiológicas de 45 amostras da água subterrânea em poços de áreas urbanas na cidade de Ji-Paraná - RO. As amostras foram analisadas para Coliformes totais e Escherichia coli, ambos com resultados expressos em número mais provável (NMP/100mL), com a finalidade de avaliar as condições de potabilidade dessas águas de poços. Os resultados das 45 amostras de águas coletadas foram comparados aos valores máximos permissíveis para consumo humano nas legislações federais vigentes no Brasil. Foram encontrados Coliformes totais em 42,22% das amostras e E. coli em 89,47% das amostras com presença de Coliformes totais, ou seja, os resultados não apresentaram conformidade comparando-se aos padrões preconizado na Portaria 2914/MS, representando um risco à saúde dos consumidores das águas destes poços. Em todo o Brasil, 22% das crianças morrem antes de completarem 6 anos de idade devido a males provocados por regiões sem água tratada. Além de que, 65% das internações de crianças com até 10 anos de idade são devido à ingestão de água não tratada.

Microbiological analyzes were performed of 45 samples of groundwater in urban areas wells in the city of Ji-Paraná-RO. The samples were analyzed for Total coliforms and Escherichia coli, both with results expressed in most probable number (MPN / 100ml) for the purpose of evaluating the potability of these conditions well water. The results of the 45 samples collected water were compared to the maximum permissible values for human consumption under federal laws in force in Brazil. Coliform bacteria were found in samples of 42.22% and 89.47% E. coli in the samples with the presence of Total Coliforms, or non-compliance results presented up to the recommended comparing the Ruling 2914 standards / MS, representing a risk to consumer health from the waters of these wells. In Brazil, 22% of children die before reaching the age of 6 due to ailments caused by regions without clean water. Apart from that, 65% of hospitalizations of children under 10 years of age are due to ingestion of water untreated.

Assuntos

RESUMO

Foram realizadas análises microbiológicas de 45 amostras da água subterrânea em poços de áreas urbanas na cidade de Ji-Paraná - RO. As amostras foram analisadas para Coliformes totais e Escherichia coli, ambos com resultados expressos em número mais provável (NMP/100mL), com a finalidade de avaliar as condições de potabilidade dessas águas de poços. Os resultados das 45 amostras de águas coletadas foram comparados aos valores máximos permissíveis para consumo humano nas legislações federais vigentes no Brasil. Foram encontrados Coliformes totais em 42,22% das amostras e E. coli em 89,47% das amostras com presença de Coliformes totais, ou seja, os resultados não apresentaram conformidade comparando-se aos padrões preconizado na Portaria 2914/MS, representando um risco à saúde dos consumidores das águas destes poços. Em todo o Brasil, 22% das crianças morrem antes de completarem 6 anos de idade devido a males provocados por regiões sem água tratada. Além de que, 65% das internações de crianças com até 10 anos de idade são devido à ingestão de água não tratada.(AU)

Microbiological analyzes were performed of 45 samples of ground-water in urban areas wells in the city of Ji-Paraná-RO. The samples were analyzed for Total coliforms and Escherichia coli, both with results expressed in most probable number (MPN / 100ml) for the purpose of evaluating the potability of these conditions well water. The results of the 45 samples collected water were compared to the maximum permissible values for human consumption under federal laws in force in Brazil. Coliform bacteria were found in samples of 42.22% and 89.47% E. coli in the samples with the presence of Total Coliforms, or non-compliance results presented up to the recommended comparing the Ruling 2914 standards / MS, representing a risk to consumer health from the waters of these wells. In Brazil, 22% of children die before reaching the age of 6 due to ailments caused by regions without clean water. Apart from that, 65% of hospitalizations of children under 10 years of age are due to ingestion of water untreated.(AU)

Assuntos

RESUMO

A má qualidade dos sistemas de distribuição e de reservatórios proporciona a população uma água contaminada que, serve de veículo para vários agentes infecciosos que provocam danos à saúde humana. O presente trabalho teve por objetivo analisar a qualidade e potabilidade das águas dos bebedouros de uma Universidade do município de Sobral - CE, por meio da quantificação de coliformes totais e coliformes termotolerantes. As amostras foram avaliadas, segundo os requisitos determinados pelo Ministério da Saúde, por meio da Portaria n° 2914 de 2011. Os resultados apresentados após as análises feitas não atenderam aos parâmetros, desta forma as amostras podem ser classificadas como inadequadas para consumo de acordo com parâmetros para coliformes.(AU)

The poor quality of distribution systems and tanks to the population provides a contaminated water that serves as a vehicle for various infectious agents that cause damage to human health. This study aims to analyze the quality and potability of water in the troughs of a University of Sobral - CE municipality, through the quantification of total coliforms and fecal coliforms. The samples were evaluated, whose requirements are determined by the Ministry of Health, through Ordinance No. 2914 of 2011. The results after the analyzes did not meet the parameters, so samples can be classified as unsuitable for consumption according to parameters coliform.(AU)

Assuntos

RESUMO

Amostras de água utilizada pelos quatro maiores restaurantes da cidade de Salgueiro - PE foram coletadas em três períodos distintos, e submetidas a análises físico-química e microbiológica e comparadas a legislação do Ministério da Saúde, Portaria MS n° 2.914, de 12 de Dezembro de 2011. Esta estabelece os padrões de potabilidade da água. As análises físico-químicas constituíram-se da mensuração de pH e teor de cloro residual livre pelo Método DPD, enquanto Colimetria e Contagem de bactérias heterotróficas representaram as análises microbiológicas da água. Os valores de pH de todas as amostras de água ficaram dentro dos valores permitidos. Já para o teor de cloro residual, apenas as amostras advindas do sistema alternativo não atenderam à legislação. Os restaurantes RI e R2 apresentaram positividade para coliformes totais e termotolerantes em pelo menos uma das amostras, enquanto o restaurante R3 apresentou ausência de coliformes totais e termotolerantes em todas as repetições. O restaurante R4 apresentou ausência de coliformes totais e termotolerantes em todas as repetições para a água proveniente do sistema público de abastecimento, porém a água oriunda de poço extrapolou os limites para colimetria em todas as repetições. Em relação à contagem de bactérias heterotróficas, apenas uma das amostras de água proveniente de poço ultrapassou o limite, que é de 500 UFC/mL. O estudo mostrou que os restaurantes que utilizam água proveniente do sistema de abastecimento público apresentaram, de maneira geral, resultados satisfatórios quanto à colimetria, pH e cloro residual, mas o restaurante que utiliza água proveniente de poço mostrou altíssima contagem de coliformes, sendo um perigo potencial àqueles que consomem alimentos ali produzidos.(AU)

Samples of water used by the four major restaurants in the Salgueiro city, Pernambuco, were collected in three periods of different years, and subjected to physico-chemical and microbiological analyzes and compared with the legislation of the Ministry of Health, MS Ordinance No. 2914 of 12 December 2011. 11 establishes standards for potability. The physico-chemical analysis consisted of measurement of pH and free residual chlorine by DPD method, while colimetric assays and Count heterotrophic bacteria accounted for the microbiological analysis of water. The pH of all water samples were within the permissible values. As for the residual chlorine, only the samples coming from the alternative system (t.2) did not meet the law (restaurant R.4). The R.1 and R.2 restaurants tested was positive for total and fecal coliforms in at least one of the samples, while the restaurant R3 showed no total and fecal coliforms in all repetitions. The restaurant had R.4 absence of total and fecal coliforms in all replicates for water from the public supply system (t.1), but the water coming from the well (t.2) pushed the boundaries for colimetric assays in all repetitions. Regarding the counting of heterotrophic bacteria, only one of the water samples from wells exceeded the limit, which was 500 CFU / mL. The study showed that restaurants that use water from the public supply system showed, in general, satisfactory results regarding colimetric assays, pH and chlorine residual, but the restaurant that uses water from wells showed very high coliform counts, with a hazard potential to those who consume food produced there.(AU)

Assuntos

RESUMO

o objetivo desta pesquisa foi avaliar a qualidade da água que abastece aEscola Municipal de Ensino Fundamental Maria Quitéria e também a comunidade do povoado de Taquari, município de Alcobaça-BA. Foram obtidas 15 amostras de água de cinco pontos específicos (caixa d'água central do povoado, caixa d'água da escola, torneira da cozinha da escola e torneiras do bebedouro escolar) durante o período de outubro a novembro de 2013. Na análise foi utilizada a técnica dos tubos múltiplos que determina o Número Mais Provável (NMP) de coliformes totais e termotolerantes/100mL. Os resultados revelaram 15 (100 %) amostras negativas para coliformes totais e termotolerantes. Considerando a legislação vigente conclui-se que, dos cinco pontos de coleta selecionados, sob o ponto de vista microbiológico, apresentou-se sem contaminação por coliformes indicando ser própria para o consumo humano.(AU)

This study evaluated the Quality of the water supply to a municipal public elementary school to the communities in the hamlet of Taquari, municipality of Alcobaça, Bahia, Brazil. Fifteen water samples were collected at five sites (main reservoir of the hamlet, school reservoir, kitchen sink faucet in the school, and drinking fountains in the school) between October and November, 2013. Analyses were conducted using the multiple tube method, which affords to determine the most probable number of total and thermotolerant coliforms in 100 mL of a sample. The results showed that 15 (100%) of the samples were negative for these microorganisms. ln light of the current legislation, it is concluded that the microbiological condition of the water supplied is appropriate for human consumption in all sampling sites.(AU)

Assuntos

RESUMO

Este trabalho avalia a qualidade da água em propriedades rurais do município de Dois Vizinhos, Paraná, por meio de analises físico-químicas e microbiológicas. Foram analisadas 90 amostras, sendo 45 provenientes de nascentes e 45 de poços rasos, quanto aos parâmetros pH, temperatura, turbidez, coliformes totais e termotolerantes. Das 90 amostras analisadas, 23 atenderam à legislação vigente, enquanto que 67 estavam em desacordo, logo, inapropriadas para o consumo humano e animal, representando fator de risco à saúde.(AU)

This study evaluates the quality of water in rural farms of Dois Vizinhos, Paraná, Brazil, by physico-chemical and microbiological analyses. A total of 90 samples were analysed, 45 from water springs and 45 from shallow wells, regarding the following parameters: pH, temperature, turbidity, total and thermotolerant coliforms. Of the 90 samples analysed, 23 met the current legislation, while 67 disagreeded with it, being unsuitable for human and animal consumption and a health risk factor.(AU)

Assuntos

RESUMO

This study evaluates the quality of water in rural farms of Dois Vizinhos, Paran;, Brazil, by physico-chemical and microbiological analyses. A total of 90 samples were analysed, 45 from water springs and 45 from shallow wells, regarding the following parameters: pH, temperature, turbidity, total and thermotolerant coliforms. Of the 90 samples analysed, 23 met the current legislation, while 67 disagreeded with it, being unsuitable for human and animal consumption and a health risk factor.(AU)

Este trabalho avalia a qualidade da água em propriedades rurais do município de Dois Vizinhos, Paraná, por meio de analises físico-químicas e microbiológicas. Foram analisadas 90 amostras, sendo 45 provenientes de nascentes e 45 de poços rasos, quanto aos parâmetros pH, temperatura, turbidez, coliformes totais e termotolerantes. Das 90 amostras analisadas, 23 atenderam à legislação vigente, enquanto que 67 estavam em desacordo, logo, inapropriadas para o consumo humano e animal, representando fator de risco à saúde.(AU)

Assuntos

RESUMO

This study evaluates the quality of water in rural farms of Dois Vizinhos, Paraná, Brazil, by physico-chemical and microbiological analyses. A total of 90 samples were analysed, 45 from water springs and 45 from shallow wells, regarding the following parameters: pH, temperature, turbidity, total and thermotolerant coliforms. Of the 90 samples analysed, 23 met the current legislation, while 67 disagreeded with it, being unsuitable for human and animal consumption and a health risk factor.

Este trabalho avalia a qualidade da água em propriedades rurais do município de Dois Vizinhos, Paraná, por meio de analises físico-químicas e microbiológicas. Foram analisadas 90 amostras, sendo 45 provenientes de nascentes e 45 de poços rasos, quanto aos parâmetros pH, temperatura, turbidez, coliformes totais e termotolerantes. Das 90 amostras analisadas, 23 atenderam à legislação vigente, enquanto que 67 estavam em desacordo, logo, inapropriadas para o consumo humano e animal, representando fator de risco à saúde.

RESUMO

This study evaluates the quality of water in rural farms of Dois Vizinhos, Paran;, Brazil, by physico-chemical and microbiological analyses. A total of 90 samples were analysed, 45 from water springs and 45 from shallow wells, regarding the following parameters: pH, temperature, turbidity, total and thermotolerant coliforms. Of the 90 samples analysed, 23 met the current legislation, while 67 disagreeded with it, being unsuitable for human and animal consumption and a health risk factor.

Este trabalho avalia a qualidade da água em propriedades rurais do município de Dois Vizinhos, Paraná, por meio de analises físico-químicas e microbiológicas. Foram analisadas 90 amostras, sendo 45 provenientes de nascentes e 45 de poços rasos, quanto aos parâmetros pH, temperatura, turbidez, coliformes totais e termotolerantes. Das 90 amostras analisadas, 23 atenderam à legislação vigente, enquanto que 67 estavam em desacordo, logo, inapropriadas para o consumo humano e animal, representando fator de risco à saúde.

Assuntos

RESUMO

This study evaluates the quality of water in rural farms of Dois Vizinhos, Paraná, Brazil, by physico-chemical and microbiological analyses. A total of 90 samples were analysed, 45 from water springs and 45 from shallow wells, regarding the following parameters: pH, temperature, turbidity, total and thermotolerant coliforms. Of the 90 samples analysed, 23 met the current legislation, while 67 disagreeded with it, being unsuitable for human and animal consumption and a health risk factor.

Este trabalho avalia a qualidade da água em propriedades rurais do município de Dois Vizinhos, Paraná, por meio de analises físico-químicas e microbiológicas. Foram analisadas 90 amostras, sendo 45 provenientes de nascentes e 45 de poços rasos, quanto aos parâmetros pH, temperatura, turbidez, coliformes totais e termotolerantes. Das 90 amostras analisadas, 23 atenderam à legislação vigente, enquanto que 67 estavam em desacordo, logo, inapropriadas para o consumo humano e animal, representando fator de risco à saúde.