Background: Kelly Morphy, 34, told people about bad air as a public information officer for the San Joaquin Valley Air Pollution Control District. Her husband Tim, 33, works for Magee Scientific Co., which manufactures air-quality monitors.Why they left: When Kelly became pregnant with the couple's first child, the possible dangers of living with bad air hit home -- especially after she attended a conference last fall about the health consequences of air pollution. Kelly said she realized she did not want to raise her daughter in a polluted environment.Now: Just months after daughter Taylor was born earlier this year, the Morphys decided to move closer to Tim's family in Winter Garden, a suburb of Orlando, Fla. "We will miss the people in the Valley," Kelly said, "but we have a very good reason to move."