PM2.5 linked to higher heart and respiratory disease deaths in Mashhad

Short-term increases in PM2.5 concentrations were significantly associated with higher mortality from ischemic heart disease, stroke, chronic obstructive pulmonary disease, and acute lower respiratory infection. The strongest effects were generally observed at lag days 4-5 and cumulative lag periods.

This study examined the short-term association between daily PM2.5 exposure and cause-specific mortality in Mashhad, Iran, from March 2019 to March 2024. It focused on mortality from ischemic heart disease, stroke, chronic obstructive pulmonary disease, acute lower respiratory infection, asthma, and lung cancer.

The abstract focuses on findings; it does not give personal how-to steps.

This time-series analysis used generalized additive models with a quasi-Poisson distribution to estimate relative risks. The study accounted for temporal trends and meteorological variables. Data was collected from a city-wide air quality monitoring network and official health records in Mashhad, Iran.