AQI in Paris is currently around 130. Almost exactly 1 year ago I flew into Beijing, and the AQI was up toward 500. I wrote a blog post about it, and included

AQI in Paris is currently around 130. Almost exactly 1 year ago I flew into Beijing, and the AQI was up toward 500. I wrote a blog post about it, and included one of China's, "IoT solution" for this air quality challenge... http://www.patdel.com/2015/12/03/yes-that-fog-really-is-pollution-but-theres-an-app-for-that/ http://www.patdel.com/2015/12/03/yes-that-fog-really-is-poll...