Federal Register #FRL-13145-01-OAR

EPA Designates New Reference and Equivalent Methods for Ambient Air Monitoring

The U.S. Environmental Protection Agency (EPA) has designated new reference and equivalent methods for ambient air monitoring. - Government Buyer: - U.S. Environmental Protection Agency (EPA) - Air Quality Assessment Division, Office of State Air Partnerships - OEMs and Vendors: - Vasthi Instruments Pvt. Ltd. (Vair-9003 CO Analyzer) - Met One Instruments Powered by Acoem (OPX 1025 Optical Mass Monitors) - Products/Services Requested: - Vasthi Instruments Model Vair-9003 CO Analyzer (part number RFCA0625271) - Met One OPX 1025 Optical PM2.5 Mass Monitor (part number EQPM1125273) - Met One OPX 1025 Optical PM10 Mass Monitor (part number EQPM1225274) - Met One OPX 1025 Optical PM10-2.5 Mass Monitor Pair (part number EQPM1225275) - Notable Requirements: - Instruments use advanced gas filter correlation/non-dispersive infrared and optical mass spectroscopy technologies - Strict adherence to manufacturer instruction manuals and EPA specifications is required - Approved for use by states and air monitoring agencies for compliance with National Ambient Air Quality Standards (NAAQS) - Specific operational parameters, such as flow rates, firmware versions, and environmental compensation, must be met

Description

The U.S. Environmental Protection Agency (EPA) has designated new methods for measuring various air pollutants including one new reference method for carbon monoxide (CO) and three new equivalent methods for particulate matter (PM) of different sizes (PM2.5, PM10, and PM10-2.5) in ambient air. These methods are automated and utilize technologies such as gas filter correlation and optical mass spectroscopy. The designations allow these methods to be used by states and other air monitoring agencies for compliance with National Ambient Air Quality Standards (NAAQS). The notice includes details about the specific instruments and their operational parameters.

View original listing