ENVIRONMENT

Firms Taken Off Worst-Polluters List: General Motors Corp., Georgia-Pacific Corp., USX Corp. and Cargill, ranked last year among the nation’s worst corporate polluters, have been rewarded for mending their environmental ways. The Council on Economic Priorities, a New-York based public interest group, said it removed the four companies from the 1993 list of top environmental offenders after signs of progress, notably a greater willingness to disclose environmental information. The public interest group named four other companies for the second year in a row: General Electric Co., DuPont Co., Maxxam Inc. and Rockwell International Corp.