According to AirNow, the AQI rankings are as follows: In Oregon, a 102 "unhealthy for sensitive groups" reading was recorded to the south of the Blue Mountains. AirNow's map noted no nearby fires ...

According to the US Environmental Protection Agency (EPA ... The EPA measures regional air quality index (AQI) by how hazardous it is to the general public. Discover the AQI in your city by ...

Dust and ash left behind from the January wildfires in Los Angeles County can be irritating and hazardous to health when it’s ...

Wildfire ash carries many carcinogens that could cause short- and long-term health problems, including asthma attacks and ...

Tens of thousands of people have evacuated their homes and at least two have died in raging fires sweeping across Los Angeles County Wednesday. Multiple wildfires spread by strong Santa Ana winds ...

Here's how to tell if you're in an area at risk. What is the Air Quality Index, or AQI? The Air Quality Index, often referred to as AQI, is a federal measure of the amount of air pollution ...

Residents in affected areas have been advised to stay indoors. A map shows the AQI around Los Angeles on January 9. Red areas indicate "unhealthy" air quality and orange is "unhealthy for ...

This is sort of a unique situation where we have a lot of ash down at levels where people live that could pose a health issue and won’t show up on our AQI map,” said Dr. Scott Epstein ...