Produced primarily by the burning of fossil fuels, ammonium nitrate is a substantial portion of particulate pollution, a ...

According to a notice published by the NWS, the South Coast Air Quality Management District (AQMD) issued an air quality alert due to "harmful" levels of particle pollution from windblown dust in the ...

Los Angeles has long struggled with air pollution, and despite progress over the decades, smog is still a major issue in the ...

Beach visitors might want to add a new report card on the health of California beaches to their summer reading list. Once ...

Community groups are fighting an unusual Louisiana law that restricts how they use data from air-quality monitors, saying it ...

The GOP engineered a complicated maneuver to stop letting California set its own vehicle emissions standards. The ...

The organization's Beach Report Card ranks the most polluted and cleanest beaches in the state based on water quality tests from April 2024 to March 2025, evaluating harmful bacteria levels.

Local officials have told tenants to sue landlords who refuse to clean post-fire smoke damage. A new lawsuit seeks to require ...

LOS ANGELES (KABC) -- Southern California is cooling down, just in time for Memorial Day weekend. Los Angeles and Orange counties Friday can expect a high of 78 degrees and a low of 58.

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Trump Administration Halts Harvard’s Ability to Enroll International Students The move was a major escalation in the administration’s efforts to pressure the university to fall in line with ...

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