If you're in an area getting smoke from the Canadian wildfires, here's an additional reason to take precautions, like masking up:
"There’s much more to wildfire smoke than charred sticks and leaves, especially where these blazes are burning in Canada. The country’s forests have long been mined, operations that loaded soils and waterways with toxic metals like lead and mercury, especially before clean-air standards kicked in 50 years ago.
"Now everyone downwind of these wildfires may have to contend with that legacy and those pollutants, in addition to all the other nasties inherent in wildfire smoke."
"What exactly is lurking in the smoke from Canadian wildfires will require further testing by scientists."
https://grist.org/climate/canada-wildfire-smoke-toxic-arsenic/
h/t @Snoro
#wildfire #smoke