AI Article Synopsis
- * Daily PM₂.₅ (a harmful air pollutant) levels were significantly higher on wildfire days (34 µg/m) compared to non-wildfire days (25.75 µg/m), indicating a link to fire events.
- * The risk of ST-elevation myocardial infarction (STEMI) increased with higher PM₂.₅ levels, especially when concentrations exceeded 20 µg/m, suggesting that wildfires contribute to heart health risks.
Article Abstract
We conducted a modified case-crossover study to examine whether wildfires in the Paraná River Delta departments surrounding Rosario, Argentina, during 2021-2022 increased PM₂.₅ concentrations in this city and if this rise subsequently elevated the risk of ST-elevation myocardial infarction (STEMI). We first observed that daily PM₂.₅ levels in Rosario were significantly higher on wildfire days compared to non-wildfire days (34 µg/m vs. 25.75 µg/m, < 0.01). In the case-crossover analysis, we found that the odds of STEMI were significantly higher on days when PM₂.₅ concentrations exceeded 20 µg/m (OR 2.2 [95% CI 1.2-4.2, = 0.02]). Additionally, the odds of STEMI increased with higher PM₂.₅ concentrations, with a significant difference when comparing the first and fourth quartiles concentration (OR 1.76 [95% CI 1.06-2.92, = 0.03] and OR 2.02 [95% CI 1.25-3.27, < 0.01], respectively). In conclusion, wildfires in the surrounding departments of Rosario City in the Paraná River Delta led to elevated PM₂.₅ levels, and this increase was associated with a higher risk of STEMI hospital admissions.
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| http://dx.doi.org/10.1080/09603123.2024.2434208 | DOI Listing |
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