Automated cryogen-free monitoring of 65 hazardous air pollutants in ambient air using in accordance with US EPA Method TO 17

This study demonstrates the performance of thermal desorption (TD) analysis for the monitoring of 'air toxic' compounds according to US EPA Method TO-17. The results show excellent precision, linearity, and low method detection limits for all 65 target compounds across a wide volatility range. Key capabilities highlighted include the ability to re-collect and re-analyse split samples, as well as determining safe sampling volumes through breakthrough testing. The application of TD-GC-MS for trace-level air toxics analysis is shown to be a robust and reliable technique, meeting the stringent requirements of the US EPA method.