Interactive Air quality map created for the Earthwatch Institute can be accessed here https://arcg.is/5D9Lq

- Base layer with air quality information between 1998-2016 for the United States.

- Secondary layer with live air quality information obtained from OpenAQ showing live air quality information on a global scale.

- Tertiary layer displays citizen science contributions to air quality monitoring.

Software: ArcGIS Online, ArcGIS Dashboard