Jon M. Heuss is principal scientist for Air Improvement Resource Inc., an environmental consulting firm based in Novi, Mich.

By Jon M. Heuss

Assessing Stricter Mercury Controls in Michigan

On April 17, 2006, Michigan Gov. Jennifer Granholm directed the Department of Environmental Quality to draft a rule under the state’s Clean Air Act to reduce mercury emissions from coal-fired power plants by 90 percent. The governor ordered the reductions to occur in two phases. The first phase is supposed to entail the reduction schedule established by the U.S. Environmental Protection Agency last year. The second phase is supposed to exceed the federal requirements by reducing emissions 90 percent by the year 2015. … more