For the first time since 2012, the US Environmental Protection Agency is proposing an update to the federal air quality standard for fine soot – a long-awaited step to reduce deadly air pollution
. The current standard, which has been in place for more than a decade, limits the average annual amount of fine particle pollution to 12 micrograms per cubic meter of air. The EPA is proposing reducing that limit to 9 to 10 micrograms, though it will be taking public comment on a range as low as 8 and as high as 11 migrograms per cubic meter. The final standard will be a single digit somewhere in that range. Fine particulate matter – called PM2.
EPA Administrator Michael Regan defended the proposed rule, and said was crafted after “a lot of time looking at all of the new science” and after consultation with the experts within EPA “as well as our stakeholders.” “We arrived to this space based on sound science and rigorous evaluation of the data that we have at hand,” Regan told reporters. The administrator further emphasized the new standard would help advance the agency’s environmental justice goals.
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