Wildfires Leave Sky Full of Soot

California Fires Leave 32 Dead, a Vast Landscape Charred, and a Sky Full of Soot

NY Times, Oct. 12, 2017

SONOMA, Calif. — Some of the worst wildfires ever to tear through California have killed 32 people and torched a vast area of the state’s north this week, but the reach of the blazes is spreading dramatically further by the day, as thick plumes of smoke blow through population centers across the Bay Area. . . .  Air-quality, based on levels of tiny particles that can flow deep into the lungs, is rated “unhealthy” across much of Northern California, and smoke has traveled as far as Fresno, more than 200 miles to the south.   Read more

EPA Air Quality Information for Napa, Oct. 13, 2017:

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Current Conditions  Oct. 13, 2017

Air Quality Index (AQI) observed at 17:00 PDT  393    Hazardous Health Message: People with heart or lung disease, older adults, and children should remain indoors and keep activity levels low. Everyone else should avoid all physical activity outdoors. Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.