"HOUSTON -- Sierra Club and Environment Texas filed an air pollution lawsuit today in federal district court against Chevron Phillips Chemical Company LP.

The groups claim that Chevron Phillips has repeatedly violated the Clean Air Act at its Cedar Bayou chemical plant in Baytown, Texas by releasing more than a million of pounds of excess air pollutants since 2003, including toxic chemicals such as benzene and 1,3-butadiene.

The Cedar Bayou facility is located next to Interstate 10, about 25 miles east of downtown Houston. It is the largest of Chevron Phillips's domestic manufacturing facilities, producing over six billion pounds of chemicals annually. "

Environment New Service had the story August 19, 2009. [2]