World Air Quality Index
Benoît Champagne
107
Air Quality and Pollution. If you want a specific City please send me an e-mail :) - Data providen by World Air Quality Index : http://waqi.info/ - Value : http://aqicn.org/scale/ - More information : http://blog.champagne.io/index.php/2017/02/12/lametric-world-air-quality-index/
