'When in doubt, take reasonable precautions,' writes Augustin Guibaud
lasts no longer than a couple of days, this argues for avoiding school closures or other drastic measures that we only have in mind because of COVID-19.
The good news is that we’re not currently exposed to wildfires for as long as residents of developing countries are to smog, which makes continued emissions from factories and automobiles the more immediate threat to public health in cities worldwide.But caution is in order. Right now, too few researchers are studying wildfire smoke from generation to inhalation. We just don’t know enough yet to fashion effective public policy.
We’re still in the early stages of understanding the consequences of that, especially since these immense plumes of smoke—some of which can be seen from space— vary in content and density, depending on the vegetation they burn. We can’t always predict with total accuracy how high and far the smoke will travel. We simply don’t know what’s in the smoke once it mixes with air and travels to cities with their own sources of pollution.
In an ideal world, we would have prediction models able to forecast the arrival of haze with the same accuracy as hurricanes. But as a result of the cumulative uncertainties in fire modeling, climate prediction, and physiological responses, the answer is not there yet.
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