15: Number of micrograms per cubic meter the Bush administration is proposing as a maximum annual standard for fine particle pollution for the U.S.

12: Number of micrograms per cubic meter the Maine Department of Environmental Protection is calling for

50: Percentage of people in the Northeast estimated to be susceptible to particulate matter

70: Percentage of people in the Northeast who live in urban areas where fine particulate levels are highest

20 million: Number of additional people in the Northeast who would be protected from the health effects under the standard Maine’s DEP is calling for.

Source: Maine Department of Environmental Protection Commissioner David Littell