Bakersfield

California has 7 of the 20 cities with the poorest air quality, according to a list complied by Forbes. Bakersfield, which has 60 days of unhealthy air a year, takes the top spot for its hot and dusty weather and proximity to oil fields.

Homebuilders in recession-struck Bakersfield, California, have turned into landlords, renting their units while they wait for the housing market to rebound.

Five years ago, the Central Valley became the first area of California to ban indoor wood burning when an 'alert' was called by the air district; other air districts followed in 2008. This study, released in Nov. shows that "no burn" days save lives.