Reliable Air Quality readings – Beijing/Shanghai Air Quality (Data from US Embassy) Review

While other Apps have removed the U.S. Embassy AQ measurement readings, this one continues to publish them. At the time of writing this review, this App is not blocked on local Beijing networks. Thanks for persevering! It is essential to have this information when living in Beijing.
Review by Teal Green Aquamarine on Beijing/Shanghai Air Quality (Data from US Embassy).