Early Tuesday morning in San Francisco, a massive five-alarm fire erupted in a building supply company according to the San Francisco Fire Department (SFFD). Smoke from the fire rose in a plume high above ground level and was blown northeastward by the winds aloft. Aclima’s network of mobile and stationary air quality sensors picked up the local spikes in fine particulate matter (PM₂.₅) in the hours after the fire began. We continued to see elevated PM₂.₅ levels — particularly in the East Bay — until the valiant and commendable people of the SFFD all but extinguished it midday. However, firefighters remain on the scene as the debris continues to burn.
Today, in collaboration with local community groups West Oakland Environmental Indicators Project (WOEIP) and Rising Sun Center for Opportunity, we are launching a freely available, interactive, online report of block-by-block air pollutant and greenhouse gas levels throughout West Oakland, representing 34 million data points measured over six months in the second half of 2019. Community members can look up hyperlocal air pollution by address — where they live, work, play, and learn — share on social media, and access resources to take action.