Massachusetts Sets New Limits on Mercury Emissions

May 26, By Stephanie Ebbert, The Boston Globe Knight Ridder/Tribune Business News

Massachusetts today plans to unveil the toughest limits in the nation on mercury emissions from coal-fired power plants, three years after the previous administration promised to clean up the state's dirtiest electricity generating facilities.

The rules will force operators of four power plants -- in Salem, Somerset, and Holyoke -- to install equipment to capture 85 percent of their mercury emissions by 2008 and 95 percent by 2012. Mercury, a naturally occurring element that is released when coal is burned, can damage the developing brains of fetuses and children exposed to elevated levels, usually when they or their mothers eat fish.

Activists who live near the power plants and who have been pushing the state on the issue for years were heartened by the results, though disappointed by the delays in issuing the regulations and their effective date.

"I'm really glad this is going to happen. I can't believe I'm glad it's going to happen in 2012," said Sally Huntington, a Westport mother of three who lives near the Brayton Point Station in Somerset and has been advocating for changes for eight years.

Power plants produce about one-fifth of mercury emissions in Massachusetts. The output is still dwarfed by the amount produced by trash incinerators, which burn up products like thermostats and car switches that contain mercury and account for about half the emissions, according to the state Department of Environmental Protection. Three years ago, Acting Governor Jane Swift announced a crackdown on Massachusetts' oldest, dirtiest power plants, whose age exempts them from modern, federal air pollution standards. The so-called "Filthy Five" regulations actually required six power plants to cut emissions of four pollutants, but put off setting specific targets.

Regulations on two of the other pollutants -- sulfur dioxide and nitrogen oxide -- are already being phased in.

Limits on carbon dioxide have yet to be set by the Romney administration, which has focused on working with other Northeast states to develop a regional program to limit emissions of the gas, which contributes to global warming. These states are working on a plan to allow companies that cut emissions to sell their pollution rights to industries and power plants that don't meet reduction targets -- a program similar to the one that helped control acid rain.

The mercury rule was delayed by the change of administrations, and the drafting of and public comment on the regulation.

"We really are first in the nation to create a standard for mercury in the electricity sector," said Ellen Roy Herzfelder, the secretary of the Executive Office of Environmental Affairs. "It's a huge step forward in bringing clean air to Massachusetts."

The mercury rule comes as the US Environmental Protection Agency is grappling with the first federal regulations of the pollutant, measures viewed by advocates as being far less stringent than Massachusetts' action. The proposed federal rules call for 70 percent mercury reductions, but would not take full effect until 2018 and would allow plants to buy and sell pollution credits.

"This is an enforceable regulation that's going to happen," Cindy Luppi, organizing director for Clean Water Action, said of the state standard. "It's really a very strong step forward for the state to be taking." She and other advocates were pleased that Massachusetts dropped a provision that would have given power plants more time to cut mercury emissions if they helped recycle mercury from other uses, such as thermometers in schools. Environmental groups argue that trading programs are better geared toward global pollutants than metals like mercury, which have the most detrimental effects on local communities.

Herzfelder echoed advocates' concerns that mercury not only drifts in from other states but causes an immediate local health concern. "When it comes out of a stack, it does travel -- but it goes right next door into the lake right nearby," said Herzfelder.

Health advisories continue to spotlight the risks of eating fish exposed to mercury. The EPA recently doubled its estimate of the number of children born in the United States with dangerous levels of mercury in their blood -- to more than 600,000. Massachusetts warns pregnant and nursing women, as well as children, not to eat any native fish caught in fresh water in the state. In Swampscott, the local health board is making restaurants post warnings that eating fish can be dangerous.

But messages are often lost on consumers -- especially those who don't speak or read English. In Fall River, immigrant families can often be seen fishing on the Taunton River, without the benefit of translated warnings, said David Dionne, a Westport selectman who served as spokesman for the Campaign to Clean up Brayton Point.

The regulations call for four plants -- Salem Harbor Station in Salem, Mount Tom in Holyoke, and Brayton Point and NRG Power Station, both in Somerset -- to cut the amount of mercury escaping their smokestacks.

Mercury emissions have already been trimmed -- from 566 pounds a year -- as the plants used scrubbers and other means to cut other pollutants required under the Filthy Five regulations, said Ed Coletta, DEP spokesman. Collectively, the plants now give off about 185 pounds of mercury per year, according to DEP, with Brayton Point Station contributing most of the emissions.

Total power plant mercury emissions are expected to drop to 86 pounds in 2008 and 29 pounds by 2012.

A spokesperson for National Energy & Gas Transmission Inc., whose subsidiary owns the Brayton Point and Salem plants, could not be reached for comment. Lesa Bader, a spokeswoman for NRG Inc., said she could not comment on the impact on NRG Somerset Power Station until the company reviewed the new rules.

"While these new regulations are very challenging, we have every intention of meeting the new standards," said Joel Weinberg, spokesman for Northeast Generation Services, which maintains and operates the Mount Tom plant.

 

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