The Impact of Wildfire Smoke on Health and the Environment.

Wildfire smoke drifting southward from eastern Canada is a new experience for the tens of millions who live in the US Northeast. Health experts warn that there is no safe level of inhaled particles from wildfire smoke, and even at levels below national safety standards, these particles can make people sick. Children, the elderly, and people with chronic illnesses are most vulnerable. Particulates from wildfire smoke enter most buildings in high concentrations, and experts recommend indoor use of air purifiers that can trap particles smaller than 2.5 microns, especially for those at risk. Even healthy people should avoid being outside when the air quality is dangerously low and in particular, they should avoid outdoor exertion.