Federal Reference Method (FRM)

The Federal Reference Method (FRM) is a standardized way of measuring air pollution, specifically particulate matter like dust and tiny particles in the air. It involves using official, carefully calibrated equipment and strict procedures to ensure accurate and consistent measurements nationwide. The FRM serves as a benchmark for assessing air quality and helps determine if pollution levels exceed health safety standards. Its results are used for regulatory decisions, ensuring that air quality monitoring is reliable and comparable across different locations and times.