EVALUATION OF THE REUSED WATER OF THE PINHEIROS SUBWAY STATION IN THE CITY OF SÃO PAULO (BRAZIL) FOR THE PRESENCE OF METALS BY THE TECHNIQUE OF X-RAY FLUORESCENCE WITH SYNCHROTRON RADIATION
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Abstract
Ensuring the conservation of water reserves is a challenge for all humanity, which makes it essential to continuously study new forms of treatment and use of water sources on the planet. One of the focuses of water conservation and sustainability is the reuse of water sources in order to ensure the continuity of the main reserves of drinking water for watering and food production activities. The present research aimed to investigate the quality of the water used for reuse in the Pinheiros subway station in the city of São Paulo (Brazil) in order to evaluate the degree of presence of heavy metals and other chemical elements by the X-ray fluorescence technique by synchrotron radiation of the National Synchrotron Light Laboratory (LNLS). The data collection for a sample collected in the summer and analyzed revealed a pH of 6.8 and the presence of 19 chemical elements by the technique with concentrations in the order of ng.mL-1, with emphasis on the presence of lead (Pb).
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Copyright (c) 2024 Ariston da Silva Melo Júnior, Moisés Alves Cordeiro , Igor de Souza Silva, Samuel José Salicio, Richard Kauê da Silva Dias, Juciel de Paulo Felix de MouraAuthor(s)
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Ariston da Silva Melo Júnior
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Moisés Alves Cordeiro
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Igor de Souza Silva
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Samuel José Salicio
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Richard Kauê da Silva Dias
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Juciel de Paulo Felix de Moura