A well publicised Harvard study reported an association between long-term exposure to fine particulate matter (PM2.5) and COVID-19 deaths (Link). Another recent study that consider multiple pollutants found a signficiant association between nitrogen dioxide (NO2), a traffic-related pollutant and COVID-19 deaths, and not PM2.5 (Link).
Air pollution and COVID-19 have intersected in other ways. The decreases in air pollution due to the lockdown were seen as one of the few silver linings of the crisis (Link). Although early optimism has been dashed as air pollution levels have jumped right back up in China (Link) and other places when the lockdown was lifted. Some may say that under the cover of COVID-19, the Trump administration also rolled back several environmental regulations (Link), and it is unclear yet what the long-term effects of such rollbacks will be.
Air pollution is also a carrier of COVID-19 (Link), and researchers have been investigating the transmission of the virus by simulating mundane activities such as speaking in the elevator and even flushing a toilet.
Some of the other ways however, in which air pollution and COVID-19 will intersect are at infrastructure such as warehouses, which we will see increase as more and more people move to shopping online. Already in the recent pasts of the building of massive warehouses have been challenged for environmental justice reasons, as they tend to be built in poor, minority communities and result in heavy freight traffic, which in turn burdens such communities with increased pollution (Link1, Link2). Amazon employees themselves have documented the nature of siting of warehouses (Link), and it is likely to become an even more fraught site of contention as we move forward.
