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EPA to make it harder to tighten mercury rules in the future

An American Electric Power coal-burning plant in Conesville, Ohio. (Michael Williamson/The Washington Post) Credit: Michael S. Williamson, Washington Post

Proposed changes could revamp how the government values human health.

The Environmental Protection Agency on Friday proposed a major change in the way the federal government calculates the costs and benefits of dangerous air pollutants, arguing that authorities should exclude some of the public health benefits stemming from new rules.

The proposal, which revisits a 2011 rule limiting mercury emissions from coal plants, argues EPA lacked justification to curb the neurotoxin in the first place because many benefits stemmed from the overall drop in air pollution that would occur once power companies adopted new technologies. The EPA is not reversing the Obama-era standards — with which the industry has already complied — the agency wants to alter the underlying calculations to set a precedent for future public health rules.

The proposal represents a balancing act, of sorts. In keeping in place the Obama-era standards on mercury emissions, Trump officials are acknowledging the billions of dollars companies have already spent in upgrades to comply. But at the same time, the administration is advancing a broader effort to narrow what the government counts as benefits when crafting air rules.

View the complete December 28 article by Brady Dennis and Juliet Eilperin on The Washington Post website here.

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