Monitorização de íons nitrito na água de lagoas localizadas na região metropolitana norte de Natal-RN, entre os anos de 2020 e 2022
Nitrite and nitrate ions are found freely in the environment, by natural sources through nitrogen biogeochemical cycle, and by anthropogenic sources as employment of excessive nitrogenic fertilizers, domestic and industrial effluents launched inappropriately. With the increasement of urban, agric...
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Água Water Lagoas Lagoons Nitrito Nitrite Monitoramento Monitoring CNPQ::CIENCIAS DA SAUDE |
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Água Water Lagoas Lagoons Nitrito Nitrite Monitoramento Monitoring CNPQ::CIENCIAS DA SAUDE Santos, Lucas Bandeira dos Monitorização de íons nitrito na água de lagoas localizadas na região metropolitana norte de Natal-RN, entre os anos de 2020 e 2022 |
| description |
Nitrite and nitrate ions are found freely in the environment, by natural sources
through nitrogen biogeochemical cycle, and by anthropogenic sources as
employment of excessive nitrogenic fertilizers, domestic and industrial effluents
launched inappropriately. With the increasement of urban, agricultural and industrial
activities, the superficial waters have been gradually contaminated with nitrate and
nitrite ions. The monitorization of nitrite ion, as a toxic chemical agent, is important for
both environmental and human health. Frequent ingestion of water contaminated
with nitrite is associated with a higher risk of cancer development, beside its known
methemoglobin activity, affecting mainly babies and leading them to cyanosis,
popularly known as blue baby syndrome. The metropolitan region of Natal/RN
contain a large number of lagoons, many of them used to serve water to population,
either through water collect systems or by direct use of people living nearby, using
them in their plantations, daily needs, for ingestion by animals or for their own
consumption. The monitorization of nitrite ion, as a toxic chemical agent, is important
for both environmental and human health. Considering the risk to human health, the
aim of this study was to monitor nitrite ion concentration in water samples of the
lagoons Cachoeirinha, Extremoz, Jacumã, Muriú and Pitangui, localized at north
metropolitan region of Natal/RN, through 2020 and 2022. The water analysis was
performed using a UV/VIS molecular absorption spectrophotometer. At 2020, the
methodology didn’t detect nitrite levels in the samples collected from Cachoeirinha,
Jacumã and Muriú lagoons. The samples from Extremoz and Pitangui lagoons
revealed 0,01 µg/mL and 0,02 µg/mL, respectively. At 2021, the methodology
revealed nitrite concentrations between 0,02 µg/mL and 0,04 µg/mL in the samples
analyzed. At 2022, the collect of samples occurred in two moments: March and
September. The samples collected in March revealed nitrite concentrations between
0,01 µg/mL and 0,02 µg/mL and those collected in September revealed
concentrations between 0,01 µg/mL and 0,02 µg/mL. Light nitrite level variations
were observed through the three years of monitorization. These variations can be
correlated to the period of samples collection. All samples presented values above 1
mg/L, the maximum value allowed (MVA) of nitrite ion in water for human
consumption, according to GM/MS n° 888 (from May 4
th, 2021). The study concluded that in relation to nitrite ion, the water samples were adequate for human use. |
| author2 |
Schwarz, Aline |
| author_facet |
Schwarz, Aline Santos, Lucas Bandeira dos |
| format |
bachelorThesis |
| author |
Santos, Lucas Bandeira dos |
| author_sort |
Santos, Lucas Bandeira dos |
| title |
Monitorização de íons nitrito na água de lagoas localizadas na região metropolitana norte de Natal-RN, entre os anos de 2020 e 2022 |
| title_short |
Monitorização de íons nitrito na água de lagoas localizadas na região metropolitana norte de Natal-RN, entre os anos de 2020 e 2022 |
| title_full |
Monitorização de íons nitrito na água de lagoas localizadas na região metropolitana norte de Natal-RN, entre os anos de 2020 e 2022 |
| title_fullStr |
Monitorização de íons nitrito na água de lagoas localizadas na região metropolitana norte de Natal-RN, entre os anos de 2020 e 2022 |
| title_full_unstemmed |
Monitorização de íons nitrito na água de lagoas localizadas na região metropolitana norte de Natal-RN, entre os anos de 2020 e 2022 |
| title_sort |
monitorização de íons nitrito na água de lagoas localizadas na região metropolitana norte de natal-rn, entre os anos de 2020 e 2022 |
| publisher |
Universidade Federal do Rio Grande do Norte |
| publishDate |
2022 |
| url |
https://repositorio.ufrn.br/handle/123456789/49948 |
| work_keys_str_mv |
AT santoslucasbandeirados monitorizacaodeionsnitritonaaguadelagoaslocalizadasnaregiaometropolitananortedenatalrnentreosanosde2020e2022 AT santoslucasbandeirados monitorizationofnitriteionsinthewateroflagoonsfromthenorthmetropolitanregionofnatalrnthrough2020and2022 |
| _version_ |
1773964045688242176 |
| spelling |
ri-123456789-499482022-12-01T19:23:38Z Monitorização de íons nitrito na água de lagoas localizadas na região metropolitana norte de Natal-RN, entre os anos de 2020 e 2022 Monitorization of nitrite ions in the water of lagoons from the north metropolitan region of Natal-RN, through 2020 and 2022 Santos, Lucas Bandeira dos Schwarz, Aline 0000-0003-2617-0211 http://lattes.cnpq.br/4296174260512337 http://lattes.cnpq.br/2401319567715548 Schwarz, Aline http://lattes.cnpq.br/2401319567715548 Brito, George Queiroz de http://lattes.cnpq.br/5411289875385826 Sisenando, Herbert Ary Arzabe Antezama Costa Nóbrega http://lattes.cnpq.br/5246651796840735 Água Water Lagoas Lagoons Nitrito Nitrite Monitoramento Monitoring CNPQ::CIENCIAS DA SAUDE Nitrite and nitrate ions are found freely in the environment, by natural sources through nitrogen biogeochemical cycle, and by anthropogenic sources as employment of excessive nitrogenic fertilizers, domestic and industrial effluents launched inappropriately. With the increasement of urban, agricultural and industrial activities, the superficial waters have been gradually contaminated with nitrate and nitrite ions. The monitorization of nitrite ion, as a toxic chemical agent, is important for both environmental and human health. Frequent ingestion of water contaminated with nitrite is associated with a higher risk of cancer development, beside its known methemoglobin activity, affecting mainly babies and leading them to cyanosis, popularly known as blue baby syndrome. The metropolitan region of Natal/RN contain a large number of lagoons, many of them used to serve water to population, either through water collect systems or by direct use of people living nearby, using them in their plantations, daily needs, for ingestion by animals or for their own consumption. The monitorization of nitrite ion, as a toxic chemical agent, is important for both environmental and human health. Considering the risk to human health, the aim of this study was to monitor nitrite ion concentration in water samples of the lagoons Cachoeirinha, Extremoz, Jacumã, Muriú and Pitangui, localized at north metropolitan region of Natal/RN, through 2020 and 2022. The water analysis was performed using a UV/VIS molecular absorption spectrophotometer. At 2020, the methodology didn’t detect nitrite levels in the samples collected from Cachoeirinha, Jacumã and Muriú lagoons. The samples from Extremoz and Pitangui lagoons revealed 0,01 µg/mL and 0,02 µg/mL, respectively. At 2021, the methodology revealed nitrite concentrations between 0,02 µg/mL and 0,04 µg/mL in the samples analyzed. At 2022, the collect of samples occurred in two moments: March and September. The samples collected in March revealed nitrite concentrations between 0,01 µg/mL and 0,02 µg/mL and those collected in September revealed concentrations between 0,01 µg/mL and 0,02 µg/mL. Light nitrite level variations were observed through the three years of monitorization. These variations can be correlated to the period of samples collection. All samples presented values above 1 mg/L, the maximum value allowed (MVA) of nitrite ion in water for human consumption, according to GM/MS n° 888 (from May 4 th, 2021). The study concluded that in relation to nitrite ion, the water samples were adequate for human use. Os íons nitrato e nitrito estão livremente presentes na natureza, seja por origem natural, através do ciclo biogeoquímico do nitrogênio, ou antropogênica, oriundo do saneamento básico precário, fossas irregulares e uso excessivo de fertilizantes nitrogenados. Como consequência, as águas superficiais e os lençóis freáticos estão propensos a contaminação por esses compostos. Em virtude da sua toxicidade, o íon nitrito representa um risco à saúde humana, uma vez que, a exposição aguda a altas concentrações pode gerar um quadro de metemoglobinemia, comprometendo o transporte de oxigênio pelo sangue, e a exposição crônica, mesmo que a baixas concentrações, aumentam as chances de câncer pela formação de compostos N-nitrosos carcinogênicos no organismo. Ademais, o íon nitrato é convertido a nitrito no estômago, sendo esse um parâmetro de potabilidade monitorado na água de abastecimento a população. A região metropolitana de Natal/RN possui uma variedade de lagoas com importante potencial turístico, cujas águas ainda podem ser usadas pela população para consumo ou para alguma atividade. Por não receberem tratamento prévio, e considerando a problemática apresentada, o objetivo deste trabalho foi monitorar a concentração de íons nitrito nas águas das Lagoas de Cachoeirinha, Extremoz, Jacumã, Muriú e Pitangui entre os anos de 2020 e 2022. As amostras de água foram analisadas empregando a espectrofotometria de absorção molecular na região do Ultravioleta e Visível (UV/Vis). No primeiro ano de estudo, o procedimento empregado não detectou teor de nitrito nas amostras das lagoas de Cachoeirinha, Jacumã e Muriú. Nas lagoas de Extremoz e Pitangui, as concentrações obtidas foram, respectivamente, 0,01 µg/mL e 0,02 µg/mL. Em 2021, os teores obtidos foram entre 0,02 µg/mL e 0,04 µg/mL. Já em 2022, duas coletas foram realizadas, uma em março e outra em setembro. A primeira reportou concentrações entre 0,01 µg/mL e 0,02 µg/mL, e a segunda, de 0,01 µg/mL a 0,02 µg/mL. Observou-se pequenas variações no encontro do íon entre os três anos de estudo, e que podem estar correlacionados ao período de coleta. Todas as amostras apresentaram teores abaixo de 1 mg/L, valor máximo permitido de íon nitrito em água para consumo humano, de acordo com a Portaria GM/MS de 4 de maio de 2021. O estudo concluiu que, em relação ao íon nitrito, as amostras de água estavam adequadas para uso humano 2022-12-01T19:23:37Z 2022-12-01T19:23:37Z 2022-11-17 bachelorThesis SANTOS, Lucas Bandeira dos. Monitorização de íons nitrito na água de lagoas localizadas na região metropolitana norte de Natal-RN, entre os anos de 2020 e 2022. 2022. 37f. Trabalho de Conclusão de Curso (Graduação em Farmácia), Departamento de Farmácia, Universidade Federal do Rio Grande do Norte, Natal, 2022. https://repositorio.ufrn.br/handle/123456789/49948 pt_BR application/pdf Universidade Federal do Rio Grande do Norte Brasil UFRN Farmácia Departamento de Farmácia |