Reply To: Smart Air Workshop, Sunday @ Bookworm

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Keymaster

I think 2014 was pretty good compared to 2013/2012 for Chengdu. Maybe the construction of the 2nd ring made a big impact.

Right, it has. Sascha collected data on this for an article he wrote here a while back, but in the last half of 2014. The pollution decreased in Chengdu in 2014.