Residents across the Los Angeles area are facing serious air quality concerns as the South Coast Air Quality Management District (AQMD) extends its air quality alert until 7 PM Thursday. The alert, initially reported by the National Weather Service, is the consequence of elevated fine particle pollution levels resulting from wildfire smoke in the region.

Residents of communities including Malibu, Pacific Palisades, and Long Beach are being strongly advised to remain indoors, especially if smoke or ash is present, to avoid exposure to harmful particles in the air. The advisory, which also affects various other locales such as Beverly Hills and the Santa Monica Mountains, underscores the peril that, if windows and doors are closed, will significantly reduce indoor air pollution.

The extended forecast for Los Angeles hints at potential respite by Friday, with sunny conditions expected and a high near 65 degrees, according to the National Weather Service. And while a mere 30 percent chance of rain lingers after 10 am today, it seems unlikely to clear the air substantially before the alert expires.

Health officials are particularly concerned about populations vulnerable to air pollution, including children, older adults, and people with heart or lung diseases. While the alert is in effect, they should avoid vigorous activities outside, which, if worn, an N-95 or P-100 respirator could help reduce exposure. "Exposure to particle pollution can cause serious health problems, aggravate lung disease, cause asthma attacks and acute bronchitis, and increase risk of respiratory infections," warns the air quality notice.

For updated air quality levels and forecasts, the public can visit AQMD's website or download its mobile app.