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Exposição ocupacional ao dióxido de nitrogênio (NO2) em policiais de trânsito na cidade do Rio de Janeiro

1997; Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz; Volume: 13; Issue: 4 Linguagem: Inglês

10.1590/s0102-311x1997000400010

1678-4464

Gisele Sayuri Kuriyama, Josino Costa Moreira, Célia Regina Sousa da Silva,

Air Quality and Health Impacts

In order to assess level of human exposure to nitrogen dioxide, 22 traffic police from the city of Rio de Janeiro were monitored during their working hours for 3 consecutive days. Samples were taken by using a passive sampler (badge) and analyzed spectrophotometrically after reacting with sulphanilic acid followed by coupling with N-naphtilethylenediamine dihydrochloride. Results ranged from 13.3 to 193.6 mg/m3. According to the literature, these levels are not associated with any acute damage to human health but care should be taken to avoid long-term problems.