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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.