New report ranks the most polluted places in the U.S.

The American Lung Association says 131.2 million people – that’s 39% of Americans – live in communities with failing grades for levels of pollution. Here's a map of the best and worst.

Runners raise funds in Mesa to stamp out childhood cancer

On Sunday, the 14th annual Children's Cancer Network Run at Riverview Park in Mesa was held to help raise money to battle childhood cancer. FOX 10's Irene Snyder caught up with some of the runners to find out why they do it.