These US cities have the worst air quality this year

More than 156 million Americans live among unhealthy levels of air pollution, an annual report from the American Lung Association found.

LA fires: 'Hazardous ash' may still linger in the air, forecasters say

Experts say that even after fires are contained and extinguished, health risks from ash, smoke, and toxic materials, including asbestos, will linger for weeks and months.

Air quality Los Angeles: Harmful particle pollution from windblown fire ash

The National Weather Service has issued an air quality alert due to harmful levels of windblown dust and ash as multiple fires continue to burn in the region.

USC professor 'estimates' Californians will need to make $1,000 more next year to keep up with 2025 gas prices

A business professor with ties to Saudi Arabia claims Californians driving gas-powered cars will need to make up to an additional $1,000 a year in pre-tax income if they want to keep up with the projected 2025 gas prices in the state.

These were the most polluted US cities in 2023, study shows

The study analyzed data from cities and countries around the world in 2023 to determine its ranking of places with the worst air quality.

Wood-burning ban in SoCal extended

Indoor and outdoor wood burning are banned through Wednesday in much of the Southland due to a forecast of high air pollution in the area.

Los Angeles is most ozone-polluted US region (again), report shows

Los Angeles gets an "F" for air quality yet again, according to the American Lung Association's new "State of the Air" report.

No-burn order extended through Dec. 26 in SoCal

The South Coast Air Quality Management District Sunday extended a mandatory prohibition on indoor and outdoor wood burning in much of the Southland through Monday.

Pollution a concern during SoCal heat wave
video

As we consider our activities outside during this weeklong heat wave, don't forget about pollution.

NASA commissions independent team to study UFOs

Lawmakers from both parties say UFOs are a national security concern, but scientists don't believe the sightings are "extra-terrestrial in origin."

Lighting a fire? 'Check before you burn' period begins Monday

Starting Monday, Southland residents planning to spark up the fireplace will have to check with air-quality officials first.

Air quality briefly improved amid 2020 COVID-19 lockdown, UN says

The World Meteorological Organization, releasing its first ever Air Quality and Climate Bulletin on Friday, cautioned that the reductions in pollution were patchy.

July 4 festivities in 2021 caused worst air since Bobcat Fire

The South Coast Air Quality Management District said that air quality after this year's Fourth of July festivities was the worst in the region since the Bobcat Fire last September, and showed the second highest pollution levels for Independence Day in the last decade.

Research finds links between air quality and COVID vulnerability: UCLA

Long-term exposure to poor air quality increased the risk of COVID-19 throughout the country last year, according to research announced Wednesday from a UCLA-led team.

Local lockdowns brought fast global ozone reductions: NASA

As a result of the lower NOx emissions, by June 2020, global ozone levels had dropped to a level that policymakers thought would take at least 15 years to reach by conventional means, such as regulations.

Smoke Advisory issued amid Bond, Airport fires

Regulators say air quality is being affected throughout northern and central Orange County and the Long Beach area.

Weather forecast for Thursday evening, December 3
video

The latest air quality and weather forecast for the greater Los Angeles area, including beaches, valleys and desert regions.

No-burn alert in effect Monday in many parts of Southland

Residents in the South Coast Air Quality Management District are prohibited from indoor and outdoor wood burning on Monday due to a forecast of high air pollution in the area.