The Relationship between Air Quality and Cases of Myocardial Infarction in Yazd in 2016

Abstract

Introduction: Air pollution is now one of the greatest environmental hazards to human health in the world. The aim of this study was to investigate the relationship between air quality and cases of myocardial infarction in Yazd.

Methods: This Ecological study was performed in Yazd, Iran. In this study, all the cases with myocardial infarction in Yazd who referred to emergency rooms from March 20, 2016 to March 20, 2017 entered the study. Information on the daily concentration of air pollutants included five pollutants SO₂, CO, O₃, NO₂ and PM₁₀ and was validated according to the World Health Criteria. In the next step the raw data from air pollutants related to each station using equation and table standard was converted to separate AQI values for each pollutant and the pollutant having the highest index was introduced as the pollutant responsible for the day. Excel 2007 and R (3.4.3) software were used to analyze the data. The significant level was considered to be less than 0.05.

Results: According to measurements of air pollutants, out of 349 days, the air quality index (AQI <100) was standard in 245 days and in 104 days of the year was above the standard (AQI> 100).PM10 and CO emissions were for air pollutants in 86 days out of 104 days.

Conclusion:  Given that in 104 days of the year, air quality has exceeded the standard, the children and elderly people should take caution in those days.

Keywords: Air Pollutants, Myocardial Infarction, Air Quality Index (AQI), Yazd