Atmospheric PFC measurement: comparing long-range measurement with local-area sampling

Mike Czerniak and Simon O’Doherty

Measuring the concentrations of perfluorinated compounds in the atmosphere is a well-established technology which has enabled progress of the semiconductor industry towards the World Semiconductor Council’s 2010 and 2020 aspirations to be monitored. By combining such measurements, obtained via the AGAGE (Advanced Global Atmospheric Gases Experiment, running since 1978), with real-time models of the atmosphere’s meteorology enable emission sources to be located, and often identified. At the complete opposite end of the scale, local air sampling and measurements can be used to confirm local emission rates from known points of release. This work attempts to combine these macro and micro-scale measurements to study and reconcile emission phenomena. An overview of techniques at both ends of the analysis scale will be presented.

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