Ground-level ozone (03) needs a whole different sensor. In many areas of the U.S. the critical air pollutant is ozone, not particulate matter, especially in hot sunny weather.
It is also erroneous to call a PM sensor reading "air quality." Air quality and the Air Quality Index (AQI) depend on a combination of pollutants, not just PM, so if you are measuring just one pollutant you really cannot calculate an AQI number.
Rich K.