This data sheet proves the capability of the Air Quality edition of Epsilon 4, a benchtop EDXRF spectrometer, as an analytical tool for the analysis of air filters according to the US EPA method IO-3.3.

The presence of toxic pollutants in the air has been a subject of research for many years in countries around the world. In the United States, air quality standards are governed by the ‘Clean Air Act’ and administered by the US Environmental Protection Agency (EPA). One of the key areas of concern for the US EPA is the Suspended Particulate Matter (SPM) of air. Research on the health effects of SPM in ambient air has focused increasingly on particles that can be inhaled into the respiratory system, i.e. particles of aerodynamic diameter of < 10 μm. These particles are referred to as PM10 (2.5 – 10 μm) and PM2.5 (<2.5 μm). Despite chemical toxicity, these particles are a significant threat to health.

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