Mr. Ehrlich's Maryland Clean Power Rule, unveiled at a news conference in Bethesda, would require billions of dollars in improvements to curb nitrogen oxide, sulfur dioxide and mercury emissions by 2010.
Those pollutants are three of the so-called "four pollutants" environmental groups targeted with failed legislation the past several years.
Nitrogen oxide and sulfur dioxide contribute to summertime ground-level ozone, while mercury is a neurotoxin that...
| This story has expired! You can purchase the full text in our news archives. |

If you encounter other problems, please email nlundskow@capitalgazette.com and include your name, username, and any errors or messages that are displayed. The more information you can provide, the better able we will be to assist you.
In order to post or vote on a comment, you must be signed in with a hometownannapolis account.
Take a look at a summary of Commenting Guidelines.
If you encounter other problems, please email nlundskow@capitalgazette.com and include your name, username, and any errors or messages that are displayed. The more information you can provide, the better able we will be to assist you.