The AP News Break reports that Exxon Mobil Corp.'s largest U.S. oil refinery has violated federal air pollution laws thousands of times during the last five years, releasing 10 million pounds of illegal pollution, including cancer-causing toxins, without facing proper fines or being forced to fix equipment, environmental groups claim.

The Sierra Club and Environment Texas, which recently forced Shell into a $5.8 million settlement over its Clean Air Act violations and has filed a lawsuit against Chevron Phillips has yet to sue Exxon but have notified the Irving-based company, the Environmental Protection Agency and the Texas Commission on Environmental Quality of plans do so - a requirement under the Clean Air Act. The environmental groups hope that by investigating suspected violations by the dozens of refineries and petrochemical plants that line the Houston Ship Channel and filing suit against polluters, it will force the companies to act responsibly and push the Texas Commission on Environmental Quality to more closely monitor and maintain pollution standards

Exxon confirmed in a statement Wednesday that it had received a notice of the groups’ intent to sue. The oil giant said it works closely with the EPA and Texas regulators to control and report emissions from the Baytown refinery and petrochemical plants. It said it had reduced benzene emissions by 70 percent between 1990 and 2008, as well as significantly reducing other pollutants in the past decade.

We will be monitoring this situation closely. Todd S. Hageman represent hundreds of similarly situated people around the country in environmental litigation cases. To find out if The Simon Law Firm can help with an environmental litigation case, contact environmental lawyer Todd S. Hageman.