Nice one LA! “@mashable: Do you live in one of the most polluted cities in the USA? Find out: http://on.mash.to/1iHRSyG pic.twitter.com/Jr8rZgbqeR”
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Nice one LA! “@mashable: Do you live in one of the most polluted cities in the USA? Find out: http://on.mash.to/1iHRSyG pic.twitter.com/Jr8rZgbqeR”
“@mashable:Do you live in one of the most polluted cities in US? Find out: http://on.mash.to/1iHRSyG pic.twitter.com/im6ASM7w6l” #apes #4daystogo
@mashable Why is California dominate on the list with all the regulations there????
Yes i do. In Jakarta! "@mashable: Do you live in one of the most polluted cities in the U.S.? Find out:http://on.mash.to/1iHRSyG
“@mashable: Do you live in one of the most polluted cities in the U.S.? Find out: http://on.mash.to/1iHRSyG pic.twitter.com/Qln9YXlnb6”
@JBos15
@mashable Whoever wrote that article needs to look at a map.
@mashable Idaho seems to make many lists for top cities...happy to know this WASN'T one of them! :D
@mashable I live in one of the most polluted cities of the world!
“@mashable: Do you live in one of the most polluted cities in the U.S.? Find out: http://on.mash.to/1iHRSyG pic.twitter.com/pD0958k7ov”
@mashable
Unfortunately yes.
“@mashable: Do you live in one of the most polluted cities in the U.S.? Find out: http://on.mash.to/1iHRSyG pic.twitter.com/AouTa8RKhH” Yes I do 
No #SLC?! RT @mashable: Do you live in one of the most polluted cities in the U.S.? Find out: http://on.mash.to/1iHRSyG pic.twitter.com/o4nSEdQsIh
@mashable Wow, 6 out of 10 are in California, a state we usually think of a progressive...
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.