Tricloraminas no ar em ambientes de piscinas cobertas e sua repercussão no sistema respiratório

• Ano de defesa: 2008
• Autor(a) principal: Rzniski, Tânia Aparecida Barbosa
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Positivo; Brasil; Pós-Graduação; Programa de Pós-Graduação em Gestão Ambiental; UP
• Palavras-chave em Português: Qualidade do ar; Piscinas cobertas; Doenças respiratórias; Cloraminas; CNPQ::CIENCIAS BIOLOGICAS; CNPQ::ENGENHARIAS::ENGENHARIA SANITARIA
• Link de acesso: https://repositorio.cruzeirodosul.edu.br/handle/123456789/2344

The present work intended to evaluate the presence of trichloramines at the atmosphere of indoor swimming pools using different water disinfection methods: the conventional chlorination and the sodium chloride electrolysis. In addition, the respiratory capacity of the professionals who work in those places was evaluated. For chloramines evaluation, air samples were collected in quartz fiber filters covered with 500µL of an aqueous solution containing 40 g.L-1 of sodium carbonate (NaCO3), 4 g.L-1 of arsenic trioxide (As2O3) and 40 mL.L-1 of glycerol, using a vacuum pump with flow of 1 L.min-1 for 3 hours. After sampling, filters were extracted with 10ml of milli- Q water and the extracts were then analyzed by means of Ion Chromatography. For the evaluation of respiratory capacity, expirometric tests were applied among the pool employees, as well as a respiratory symptom’s questionnaire.Trichloramines were detected in both environments, and concentrations varied from 0,001 to 3279 ng.m-3. Complaints of respiratory symptoms were reported by the employees of both indoor pool environments. A direct association between the air circulation and the detected concentrations of trichloramine was observed, because samplings were performed in different year’ season, when the windows of both environments remained open with higher or lower frequency, depending on the external temperature. The number of users also exerts influence in the results, mainly for children’s swimming pools. Although the concentrations detected in the present work are lower than those described in the literature, they are worrying, mainly because the long-term health risks related to such irritant gaseous are not completely established yet.