This is a needed update of Parts 1 through 3 of this series that was originally posted in late 2022. This update was triggered by an editorial in the March 7 issue of Science Magazine. The article dealt with the shortcomings in the US Air Quality Index (AQI) a standard that is used world-wide to measure air quality.
In doing additional research on-line, I found several interesting recent developments:
- The previous (Biden) administration was attempting update the current AQI
- The current (Trump) administration was attempting to make the current AQI “more flexible.”