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A versatile instrument has been developed which may be used as a dosimeter or a continuously integrating recorder for the automatic analysis of gaseous pollutants. Further intestigation may indicate that the instrument is useful in the study of particulate pollutants. A satisfactory reagent for the determination of atmospheric hydrogen fluoride in a concentration range of parts per billion has been reported. This range of fluoride application may be extended to the analysis of atmospheres of higher concentration such as those found in stack effluents from various industrial processes. The sensitivity of the instrument and reagent might be increased by increasing air sampling rate, reducing the volume of circulating reagent and/or application of a reagent embodying greater fluoride sensitivity. Successful field and laboratory tests have been carried out with this analyzer and fluoride reagent.
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Adams et al. (1959) studied this question.
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