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Air Quality Alert: Big Bear Lake Hits 'Unhealthy' AQI Level

PM2.5 readings reached 160 on June 4 — but the cause and official health guidance are still needed before residents get the full picture.

By Big Bear News1 min read

Air quality in Big Bear Lake deteriorated to "Unhealthy" levels on June 4, 2026, with PM2.5 fine particle pollution hitting an Air Quality Index (AQI) score of 160, according to federal AirNow monitoring data for the 92315 zip code.

An AQI between 151 and 200 is classified as "Unhealthy," meaning the general public — not just sensitive groups — may begin to experience health effects with prolonged outdoor exposure. Children, the elderly, and anyone with respiratory or heart conditions face the greatest risk at this level.

What Big Bear News could not confirm: The cause of the spike — whether wildfire smoke, localized burning, or another source — had not been officially identified at the time of publication. A statement from the South Coast Air Quality Management District (AQMD) or San Bernardino County Public Health with specific guidance for residents was also not available.

Residents are encouraged to check current conditions at AirNow.gov (opens in a new tab) and to contact South Coast AQMD or San Bernardino County Public Health directly for health recommendations. Big Bear News will update this story as more information becomes available.

Sources (1)

  1. 1.
    AirNow — Big Bear Lake (92315)
    PM2.5 AQI 160 (Unhealthy) — Big Bear Lake, CA

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