The Valley has seen decades of big business deals and population growth. A yearslong fight over air pollution could now ...

The EPA's decision on the Valley's ozone nonattainment issue could have big impacts on public health and the local economy.

Health experts warn that ozone pollution ... The air quality issues threaten their health. "I've heard people tell me, 'I have a headache today,' 'I have a sore throat' or 'I'm coughing,' and ...