Here's the data for the Bay Area from 2020 - which was considered a particularly bad year for wildfire smoke, and is also the most recent year it's caused parti

Here's the data for the Bay Area from 2020 - which was considered a particularly bad year for wildfire smoke, and is also the most recent year it's caused particular problems here. Peak levels were only around 200, although it was admittedly somewhat prolonged: https://www.baaqmd.gov/about-air-quality/current-air-quality/air-monitoring-data/#/aqi-highs?date=2020-06-07&view=monthly https://www.baaqmd.gov/about-air-quality/current-air-quality...