Our taiwanese friends g0v.tw wanted to share a new project they are working on -- 300 air quality devices "LASS" by realtek are being installed in Taipei City public schools. This is supported by the Mayor's Office.

http://pm2.5.taipei/

Here's the github repo for another sensor project in Taiwan: https://github.com/Lafudoci/ProbeCube and developer community for the mediatek (taiwan cellphone chip manufactuer) linkit smart chip with wifi (and new version coming out with 4g too?) that it's built on: https://github.com/LinkItONEDevGroup

Facebook link to the Taipei project announcement: https://www.facebook.com/DoctorKoWJ/photos/a.136856586416330.19357.136845026417486/728312837270699/?type=3&theater

So, http://pm2.5.taipei is focused on the project that taipei city government works on. Another g0v map, http://g0vairmap.3203.info/map.html , aggregates that and other sensor nodes, including the official epa ones from outside taipei: