Abstract
TPS 681: Short-term health effects of air pollutants 1, Exhibition Hall, Ground floor, August 26, 2019, 3:00 PM - 4:30 PM Background: There is evidence that shows exposure to air pollution can be related to cardiovascular deaths. This study aimed to estimate the effect of ambient air pollutants on cardiovascular deaths in Tehran, Iran; which is one of the most polluted cities in the world. Methods: In this ecological study, air pollutant data was inquired from the air quality control units of municipalities and the Tehran Province Environmental Protection Agency. Meteorological data was enquired from the meteorological organization, and death data was inquired from the Tehran’s cemetery registration (Behesht-e-Zahra). Generalized Additive Models (GAM) were used for data analysis and Incidence Rate Ratios with different lags were calculated for up to 30 days. Results: During 2005 until 2014, 215373 cardiovascular deaths happen in Tehran in which 122911 (57.07%) were male. NO2 and PM10 were associated with total cardiovascular deaths. The strongest relationship between NO2 and respiratory death was seen after 4 day lags (RR= 1.00106, 95% CI: 1.00073-1.00140), and for PM10 was seen on the same day (lag 0) (RR= 1.00053, 95% CI: 1.00030-1.00076). Conclusion: The result of this study showed that PM10, and NO2 are probably responsible for part of the cardiovascular deaths that happen daily in Tehran. There should be more efforts to control air pollution in Tehran.
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