Wildfire smoke creates fine particulate matter that can linger in the atmosphere and spread from coast to coast. According to the US Environmental Protection Agency (EPA), in large quantities ...

The PurpleAir Map website comes with an easy conversion factor you can apply when the majority of the air pollution is from wildfire smoke. You can choose the options of LARPA, AQandU, WOODSMOKE, or ...

Wildfires are exploding across the West, especially in California, where the Park Fire has grown to be the ... with lows only ...

The EPA’s decision to slash more ... In 2022, the massive Cedar Creek Fire inundated Oakridge and surrounding Lane County with thick smoke for weeks — including 37 days of unhealthy or ...