air quality index

Fire at San Francisco Pier 45

On May 23rd, a fire that broke out at Fisherman’s Wharf resulted in a smoke cloud and high concentrations of particulate matter 2.5 pollution in the area.

See how the blaze affected the air quality, based on our measurements and model of eLichens air quality station eLos near the event.

Impact of COVID-19 on air quality in San Francisco

In response to the global COVID-19 outbreak, San Francisco county has enforced measures to limit the spread in the area. Among others, a shelter-in-place order has been declared for all residents, starting on March 17th.

In this report, we want to assess the impact on air quality (AQ) of such containment measures since these have a direct effect on road traffic which is a major source of pollutants emission.