The air quality in the Bay Area impacted by wildfires burning near the California-Oregon border is expected to gradually improve Friday. Smoke and haze will linger into the afternoon and bring ...

Some Bay Area groups are working to make monitors to track air quality more accessible for low-income communities. You can buy an air quality sensor to put in your own home, but they can be pricey ...

The AQI is measured in six levels: 0 to 50; 51 to 100; 101 to 150; 151 to 200; 201 to 300; 301 and higher; Each has a different "level of concern" in relation to the air pollutants.

PurpleAir, a company that tracks air quality via users’ sensor data, shows many spots in the Bay Area on Sunday morning with ...

SAN FRANCISCO (KRON) — San Francisco Bay Area air quality scientists were caught by surprise this week. Forecast models showed windy weather pushing hazardous smoke from Northern California’s ...

The Bay Area ranked sixth worst in the nation from 2014 to 2016 in terms of short-term particle pollution in a new “State of the Air 2018” report, which the American Lung Association released ...

While air quality has improved overall in the Bay Area, not everyone is breathing the same air. West Oakland and Bayview-Hunters Point in San Francisco are two hot spots that are more polluted because ...

Bay Area air quality regulators handed a $5 million fine to Marathon Petroleum Corp.’s refinery in Martinez for spewing pollution into the air repeatedly between 2018 and 2022, officials ...

NBC Bay Area Meteorologist Kari Hall said the air quality could improve slightly Wednesday evening once the ocean breeze picks up, but another round of smoke is expected to sweep in on Thursday.

There were 27 Spare the Air alerts last summer. But our air quality is actually looking up.