![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjHKCQ7wDhkXVJwqg5IoRaCXGzB00J4fYfOwn-xj-VPa5YiZn-WC52CQ5OR5b80VEQrt4bej6FsTGl_l9IMC_jZeovz1IBi_j1dp9VzeCelRhyHbMx7oMgfy_eVnxd0QvEvVBqxleHCh2c/s320/4017962488_08f6ae19a8.jpg) |
Great Falls, Montana, is one of the U.S. cities on the list. |
We hear so much about cities with foul air. Here, for a change, is a list of the 10 cities with the cleanest ~ and a couple, believe it or not, are actually in the United States!:
http://www.care2.com/causes/10-cities-with-the-cleanest-air-in-the-world.html
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