Revista Española de Salud Pública
On-line version ISSN 2173-9110Print version ISSN 1135-5727
TARACIDO TRUNK, Margarita; FIGUEIRAS, Adolfo and CASTRO LAREO, Isabel. Short-term impact of air pollution on the mortality. Results of the EMECAM project in the city of Vigo, 1991-94. Rev. Esp. Salud Publica [online]. 1999, vol.73, n.2, pp.275-282. ISSN 2173-9110. http://dx.doi.org/10.1590/S1135-57271999000200018.
BACKGROUND: In the Autonomous Region of Galicia, no study has been made of the impacts of air pollution on human health, despite the fact that several of its major cities have moderate levels of pollution. Therefore, we have considered the need of making this study in the city of Vigo. The main objective of this analysis is that of analyzing the short-term impact of air pollution on the daily death rate for all reasons in the city of Vigo throughout the 1991-1994 period, by using the procedure for analysis set out as part of the EMECAM Project. METHOD: The daily fluctuations in the number of deaths for all causes with the exception of the external ones are listed with the daily fluctuations of sulfur dioxide and particles using Poisson regression models. A non-parametric model is also used in order to better control the confusion variables. RESULTS: Using the Poisson regression model, no significant relationships have been found to exist between the pollutants and the death rate. In the non-parametric model, a relationship was found between the concentration of particles on the day immediately prior to the date of death and the death rate, an effect which remains unchanged on including the autoregressive terms. CONCLUSIONS: Particle-based air pollution is a health risk despite the average levels of this pollutant falling within the air quality guideline levels in the city of Vigo.
Keywords : EMECAM Project; Mortality; Air pollution; Poisson regression; Generalized-Accepted Additive Models.