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Application Note 146

Completely cryogen-free monitoring of PAMS ozone precursors, TO-15 air toxics and OVOCs in ambient air in a single run

Application Note 146

In December 2017, the Chinese Ministry of Environmental Protection issued a document relating to the Environmental Air Volatile Organic Compound Monitoring Program that  requires the monitoring of 117 compounds comprising three main categories of hazardous airborne volatile pollutants: ozone precursors, air toxics and oxygenated volatile organic compounds (OVOCs). 

This application note describes the sampling and analysis of a combined list of ozone precursors, TO-15 air toxics and OVOCs at high humidity, without the use of liquid nitrogen or other cryogen.

The method described complies with the detection limit and data-quality requirements of Chinese EPA Method HJ 759 and the Chinese Environmental Air Volatile Organic Compound Monitoring Program.

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