The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

After 2025 began with the LA fires and a hostile new presidential administration, this is California’s big call to act on climate.

California State Parks plans to resume prescribed pile-burning in the northern portion of the Forest of Nisene Marks State ...

STAG is well-positioned to benefit from Trump's tariffs and onshoring trends due to its focus on secondary markets and ...

Urban wildfires like LA’s make harmful chemicals from burning plastics and electronics that can make indoor air dangerous for months.

Reps. Laura Friedman, D-Burbank, and Judy Chu, D-Pasadena, were joined by Reps. Brad Sherman, D-Sherman Oaks, and George ...

Thousands of farmworkers labored in fields in Ventura County, Calif. in late January in wildfire smoke. They have little to ...

As hazardous chemicals pollute the air after devastating wildfires, officials call for increased monitoring to protect ...

California’s South Coast Air Quality Management District (“SCAQMD”) officially required an initial site report and annual report for ...

When a fire burns in an urban area, it unleashes a slurry of chemicals. Scientists are trying to understand the chemistry at ...

Toxic chemicals from L.A.'s fires are going underreported and pose serious long-term risks, a group of lawmakers says. They ...

The level of stakeholder buy-in required to propel electrification in trucking cannot be overstated, as a single example in ...