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Particulate Matter (PM) Pollution

Technical Correction to Equation 2 in Appendix N

EPA made a technical correction to an equation used in the calculation of the annual mean fine particle pollution (PM2.5) concentrations, known as design values. This fact sheet summarizes the direct final rule and parallel proposal.

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Technical Correction to Equation 2 in Appendix N: Fact Sheet (PDF)(1 pg, 43 K)