USEPAFR-2026-14237ActualitésIn force

Ambient Air Monitoring Reference and Equivalent Methods; Designation of One New Reference Method and Three New Equivalent Methods

Notice is hereby given that the U.S. Environmental Protection Agency (EPA) has designated one new reference method for measuring carbon monoxide (CO), one new equivalent method for measuring particulate matter (PM) 2.5 micrometers ([micro]m) or less (PM<INF>2.5</INF>), one new equivalent method for measuring PM 10[micro]m or less (PM<INF>10</INF>), and one new equivalent method for measuring PM<INF>10-2.5</INF> in ambient air.

Dernière modification il y a 2 semaines.

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Source

https://www.federalregister.gov/documents/2026/07/15/2026-14237/ambient-air-monitoring-reference-and-equivalent-methods-designation-of-one-new-reference-method-and

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