Wildfire smoke from California has spread across the Western United States, creating hazardous air quality conditions affecting over 30 million residents.
Affected Regions
California
- Los Angeles: AQI 180+ (Unhealthy)
- San Francisco: AQI 150+ (Unhealthy)
- Sacramento: AQI 200+ (Very Unhealthy)
Neighboring States
- Oregon: Portland AQI 165
- Washington: Seattle AQI 140
- Nevada: Reno AQI 175
Health Risks
Immediate Effects
- Respiratory irritation
- Eye and throat burning
- Chest tightness
- Reduced lung function
Long-term Concerns
- PM2.5 particles - penetrate deep into lungs
- Toxic compounds - formaldehyde, benzene
- Cardiovascular stress - heart attack risk
- Mental health - anxiety from prolonged exposure
Protection Measures
Indoor Air Quality
- Keep windows closed
- Use AC on recirculate
- HEPA air purifiers - essential for sensitive groups
- Avoid vacuuming - stirs up particles
Outdoor Activities
- N95 masks minimum protection
- Limit exercise - especially strenuous
- Stay hydrated - helps clear particles
- Check AQI before leaving home
Forecast
Meteorologists predict:
- Wind shift may bring relief by weekend
- Fire containment at 35%
- Air quality alerts extended through Friday
- Rain possible - would help clear smoke
Resources
- AirNow.gov - official AQI monitoring
- PurpleAir - community sensors
- 211 Helpline - health information
- Cooling centers - for vulnerable populations