cleanest/dirtiest cities per the american lung association Jan 31, 2014 9:20:55 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by fungi70 on Jan 31, 2014 9:20:55 GMT -5 might be useful information. Doesn't show mold, but ozone and other particulates.cleanestwww.stateoftheair.org/2013/city-rankings/cleanest-cities.htmldirtyestwww.stateoftheair.org/2013/city-rankings/most-polluted-cities.html