There’s only one source of public information on real-time UB air quality, and that’s from http://www.ub-air.info/ub-air/laq/. UB resident (and my husband) Joe Flasher recently made an API that spits out data from this site in an easy-to-use format. Check out his API here and/or read his blog entry describing it. Thanks, Joe!
Note: At the time of this posting, none of the AQ stations appear to be posting data. This is (hopefully) a temporary issue!