Wildfire Smoke Reaches San Francisco

According to the EPA’s air quality monitoring site AIRNow, conditions in San Francisco, Alameda County, and large parts of Contra Costa County and San Mateo County are “unhealthy,” hitting the 150-200 range on the EPA’s 500 point hazardous air scale.

Smoke from NorCal Wine Country wildfires:


Most days San Francisco’s air quality falls neatly within the 0-50 range, dubbed “good.”

The “unhealthy” threshold that we are having right now usually comes in the city only a few times a year.


The Bay Area Air Quality Management District (BAAQMD) Spare the Air Warning is in effect at least through Friday.

During summer Spare the Air Days, they advise:

Avoid physical outside activities and don’t let your children play outdoors. […] If you are advised to stay indoors, keep indoor air as clean as possible. Keep your windows and doors closed unless it’s extremely hot outside. If you don’t have an air conditioner, staying inside with the windows closed may be dangerous in extremely hot weather. In these cases, seek alternative shelter.

Even if the air does not appear visibly worse in your area, take the advised precautions just in case. Children, the elderly, and those with already compromised respiratory systems are especially vulnerable.


Source: Curbed SF, BAAQMD, SF Chronicle

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