Dive summary:

• The EPA has finalized clean air standards in the United States, regulating mercury and other toxic pollutant emissions from incinerators, industrial boilers and cement kilns.
• The expected cost for an incinerator company to comply with the standards is $275 million annually.
• The EPA estimates that for every dollar spent to reduce incinerator pollutants, the public will see $13 to $29 worth in health benefits such as fewer instances of asthma, heart attacks and premature deaths.

From the article:

With all units complying, the EPA estimates that the final standards will reduce emissions of metals and dioxins by about five tonnes per year, emissions of acid gases (HCl and SO2) by 7,000 tonnes per year, emissions 2 of PM by 2,400 tonnes per year, emissions of nitrogen oxides (NOx) by 5,400 tonnes per year and emissions of CO by 20,000 tonnes per year.

The EPA says that if all 106 units currently in operation use add-on controls to adjust to the new standards, the total nationwide cost for complying is approximately $275 million per year. ...