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EPA Seeks Public Comment on Revised PM Conformity Standards.

The Environmental Protection Agency (EPA) recently announced the publication of a supplemental notice of proposed rulemaking with optional methods and procedures for determining localized concentrations of particulate matter (PM) in nonattainment areas where transportation conformity is required for PM2.5 and PM10.

According to EPA, the notice has been published due to the possibility that concentrations of particulate matter that violate the PM standards could occur on a local, rather than regional, basis, such as at road intersections and truck stops.

EPA said it is requesting further comment on options it previously proposed, as well as proposing several additional options for states regarding this type of local analysis. Additional information can be found at

Contact: John Millett, EPA, phone 202-564-7842, e-mail

(EIN STAFF: 12/09)
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Title Annotation:Environmental Protection Agency; particulate matter
Publication:Mobile Emissions Today
Article Type:Brief Article
Geographic Code:1USA
Date:Dec 15, 2004
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