Abstract

Abstract The detection of gaseous pollutants using a coated vibrating quartz crystal has been the topic of several studies. Detection of sulfur dioxide with an alkanoamine-coated crystal has already been shown feasible for ambient air pollution levels. Detection of sulfur dioxide at source levels using the piezo-electric method has previously not been proven successful. This work presents the refinements, calibration, and performance of a source monitoring instrument which incorporates a sulfur dioxide permeable membrane as a dilution interface.

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