Association between NOx exposure and deaths caused by respiratory diseases in a medium-sized Brazilian city
Braz. j. med. biol. res
;
48(12): 1130-1135, Dec. 2015. tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-762911
ABSTRACT
Exposure to nitrogen oxides (NOx) emitted by burning fossil fuels has been associated with respiratory diseases. We aimed to estimate the effects of NOx exposure on mortality owing to respiratory diseases in residents of Taubaté, São Paulo, Brazil, of all ages and both sexes. This time-series ecological study from August 1, 2011 to July 31, 2012 used information on deaths caused by respiratory diseases obtained from the Health Department of Taubaté. Estimated daily levels of pollutants (NOx, particulate matter, ozone, carbon monoxide) were obtained from the Centro de Previsão de Tempo e Estudos Climáticos Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System. These environmental variables were used to adjust the multipollutant model for apparent temperature. To estimate association between hospitalizations owing to asthma and air pollutants, generalized additive Poisson regression models were developed, with lags as much as 5 days. There were 385 deaths with a daily mean (±SD) of 1.05±1.03 (range 0-5). Exposure to NOx was significantly associated with mortality owing to respiratory diseases relative risk (RR)=1.035 (95% confidence interval [CI] 1.008-1.063) for lag 2, RR=1.064 (95%CI 1.017-1.112) lag 3, RR=1.055 (95%CI 1.025-1.085) lag 4, and RR=1.042 (95%CI 1.010-1.076) lag 5. A 3 µg/m3 reduction in NOx concentration resulted in a decrease of 10-18 percentage points in risk of death caused by respiratory diseases. Even at NOx concentrations below the acceptable standard, there is association with deaths caused by respiratory diseases.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Trastornos Respiratorios
/
Contaminantes Atmosféricos
/
Contaminación del Aire
/
Exposición a Riesgos Ambientales
/
Óxido Nítrico
Tipo de estudio:
Estudio de etiología
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Adolescente
/
Adulto
/
Anciano
/
Aged80
/
Niño
/
Child, preschool
/
Femenino
/
Humanos
/
Lactante
/
Masculino
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Braz. j. med. biol. res
Asunto de la revista:
Biologia
/
Medicina
Año:
2015
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Instituto Federal de Educação, Ciência e Tecnologia de São Paulo/BR
Similares
MEDLINE
...
LILACS
LIS