Abstract
Recently the authors developed a coated filter for ozone collection that they used in a commercially available passive sampling device. Results from the ozone sampler validation tests are presented. The passive ozone sampler used in field and laboratory experiments consists of a badge clip supporting a barrel-shaped body which contains two coated glass fiber filters. The principal component of the coating is nitrite ion, which in the presence of ozone is oxidized to nitrate ion on the filter medium. After sample collection, the filters are extracted with ultrapure water and analyzed for nitrate ion by ion chromatography. The results from laboratory and field validation tests indicate excellent agreement between the passive method and standard ozone monitoring techniques. 22 refs., 6 figs.
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