Portable, Self-Contained (BAM 1022 or Equal) for Continuous PM2.5 FEM 3.1.1.1 Must meet United States Environmental Protection Agency (EPA) Class III equivalent method EQPM-1013- 209 for continuous monitoring of suspended particulate matter of 2.5 micrometers in diameter (PM2.5) in ambient air by beta attenuation meeting Federal Equivalent Method (FEM) status as defined in EPA List of Designated Reference and Equivalent Methods, June 15, 2025, https://www.epa.gov/system/files/documents/2025- 06/amtic-list-june-2025_final-508-complaint.pdf (Exhibit B) Must meet MetOne Instruments Model BAM 1022 or equal. 3.1.1.2 Monitor must be capable of providing continuous PM2.5 data with sample reporting times of 1 minute, 15 minutes, 30 minutes and 1 hour. 3.1.1.3 Monitor must be capable of running in ambient conditions, specifically must be functional in high ambient temperatures and relative humidity. 3.1.1.3.1 Operating Temp Range: between a minimum - 30° C to an upper limit minimum of +50° C. 3.1.1.3.2 Operating Humidity Range: between a minimum 0% RH to an upper minimum of 90% RH or above, non-condensing. 3.1.1.3.3 Must not require collocation with airconditioning unit in order to function. 3.1.1.3.4 Must be functional in humid environments without the risk of condensation forming in sample lines...
