Los Angeles County acts to control emissions of nitrogen oxides from power plants.
D000397:Air Pollution / Q000517:prevention & control*; D002140:California; D004560:Electricity; D007878:Legislation as Topic; D009584:Nitrogen; D009589:Nitrogen Oxides; D010100:Oxygen
D009589:Nitrogen Oxides; D009584:Nitrogen; D010100:Oxygen