Air Quality Index Archive
based on ground monitors in China (Feb 2014 to Feb 2016)
Unfortunately since this project received no funding, we have discontinued the collection and archiving.
see follow up project for Hourly AQI data here: https://dataverse.harvard.edu/dataverse/china_pm25s
|Video of February 2014 data, showing the variation of PM2.5 values, (an indicator of severe air pollution for the red areas,) across space and over time.|