How will EPA show deaths from soot?

Read the full story in E&E News.

How many people might die from air pollution? The answer should become clear today when EPA releases its revamped rule affecting carbon dioxide emissions at power plants.

How the agency accounts for deaths associated with fine particulate matter has been an open-ended question since EPA acknowledged last year that its proposal to replace the Clean Power Plan, an Obama-era climate rule, could result in 1,400 additional premature mortalities a year.

EPA air chief Bill Wehrum has said the final version being made public this morning will include changes to the methodology that EPA has used for decades to tally the impact of fine particulate matter, or PM2.5. But it’s unclear how the agency will recalculate health risks from soot that include asthma and heart disease.

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