A three-year study reveals a strong association between NO

Background

Air pollution has been linked to adverse COVID-19 outcomes. However, studies of the US to-date have generally focused on the US as a whole or large cities on the east and west coasts. Few studies have considered the Midwest, and no comprehensive study of the four most common gaseous pollutants has considered Oklahoma. Oklahoma, a fossil fuel-dependent state with a relatively high respiratory disease burden, provides a unique context to evaluate pollutant impacts on COVID-19 case numbers.