AQI History Charts
Since 2008 the US Embassy in Beijing has been publishing hourly PM2.5 and AQI levels. In 2013,
after protesting it proved not to work and increasingly vocal Chinese popular opinion pushed
for it, the Chinese government also started publishing their own statistics. It is a foregone
conclusion that Xinhua reporting will show things getting better. This site lets you review the
historic figures to check if it is really true. (spoiler alert: for 2015 it certainly is).
For the last couple years at the end of the year I compiled data for the previous years into
a subsite, but that is a lot of work, and answering some questions only
brings up more. So, this page will let people generate their own charts to get their own answers.
Charts you generate can be bookmarked and sent to others.
Any suggestions for other chart types can be considered if you send me mail.
The PHP source and the
is used for the graphing.
Go to airquality reporting page