BALTIMORE AP – A consent decree between power plant operator Mirant and Maryland does not go far enough to ensure air pollution standards are met, attorneys for an environmental group plan to argue in court Thursday.

The consent decree involving the Chalk Point Plant in Prince George’s County calls for Atlanta-based Mirant to use cleaner burning natural gas instead of oil during summer months and to take steps to reduce emissions during the winter months when oil is burned at two of the four plants at the site, said Eric Schaeffer, director of the Washington-based Environmental Integrity Project, a nonprofit public interest group that works on enforcement issues.