Temporal Analysis of Air Pollution Effects on Cardiovascular Diseases and Mortality in Ahvaz, Iran

Air pollution , cardiovascular diseases temporal effect

Authors

April 5, 2024

Downloads

In recent decades, air pollution has emerged as a significant environmental concern in major urban centers across Iran, exerting a profound impact on public health. This article aims to investigate the temporal correlation between air pollution and the incidence of cardiovascular disease and mortality. Utilizing secondary analysis of environmental data, hospital records, and mortality registries from Ahvaz, Iran, in 2016, our study elucidates these relationships. Our findings reveal a heightened susceptibility among men to both cardiovascular disease onset and mortality compared to women, with individuals aged 55-64 exhibiting increased vulnerability to cardiovascular diseases. The results of multivariate analysis indicate that the optimal time model, explaining 60% of the variance, is observed 23 days after pollutant emission for cardiovascular disease incidence. Conversely, for cardiovascular mortality, the most effective time model, explaining 6.5 percent of the variance, aligns with elevated air pollution levels on the same day. Notably, various pollutants, including toluene, carbon monoxide, nitrogen dioxide, sulfur dioxide, PM2.5, and PM10, exhibit distinct temporal patterns, significantly influencing cardiovascular diseases. Moreover, toluene, benzene, nitrogen dioxide, sulfur dioxide, and PM10 emerge as primary contributors to cardiovascular mortality, each demonstrating unique temporal effects. Our study further delves into the emergence of time-delayed and oscillatory patterns in the impact of air pollution on cardiovascular diseases and mortality. This study highlights the necessity of evaluating the efficacy of individual pollutants separately. Consequently, the development of effective policies and programs aimed at mitigating pollutants and their temporal repercussions on health is crucial for curtailing and managing the health complications associated with cardiovascular diseases.