Release of Final Document Related to the Review of the National Ambient Air Quality Standards for Carbon Monoxide

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The Office of Air Quality Planning and Standards (OAQPS) of EPA is announcing the availability of a final document titled, Quantitative Risk and Exposure Assessment for Carbon Monoxide (REA). The REA describes quantitative analyses that have been conducted as part of the review of the National Ambient Air Quality Standards (NAAQS) for carbon monoxide (CO).