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Réglementation et droit · 13/10/20051 min de lecture
Approval and Promulgation of Air Quality Implementation Plans; Maryland; Ambient Air Quality Standard for Ozone and Fine Particulate Matter
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Résumé
EPA is proposing to approve a State Implementation Plan (SIP) revision submitted by the Maryland Department of the Environment. The revision consists of modifications to the ambient air quality standards for ozone and fine particulate matter and the replacement of the abbreviation "ppm" with parts per million in existing standards. This action is being taken under the Clean Air Act (CAA or the Act).
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