Sponsor MessageBecome a KQED sponsor
upper waypoint

Discrepancies in Air Quality Cause Confusion in the San Joaquin Valley

02:07
Save ArticleSave Article
Failed to save article

Please try again

 (Mario Tama/Getty Images)

The San Joaquin Valley Air Pollution Control District issued an alert on Monday warning of unhealthy air conditions due to wildfire smoke from Northern California. So why do online air monitors show relatively healthy air?

Sponsored

lower waypoint
next waypoint
Player sponsored by