The research doesn’t look at how much time the mother was spending outside, if she wore an N95 mask or if she had an air-filtration system in her home, which Boudreaux acknowledges as a limitation of the study. But data sources like Purple Air that track wildfire smoke are detecting a large amount of pollution in the form of a PM2.5 inside people’s homes, he said.
The new study highlighted regions and populations that were disproportionately affected by wildfire smoke. In the West and Northwest, wildfires’ contributions to air pollution more than doubled over the study period. And the communities where wildfires are responsible for the largest reversals in
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