Abstract
Sulfuryl fluoride, SO2F2, is a widely used fumigant for structural pest control (Monroe 1969, Ebeling 1975). Structural fumigation requires that the entire building be sealed or enclosed in tarpaulins to confine the gas for a predetermined concentration and time depending on the target organism, weather, and physical nature of the building. Because structural materials, furnishings, and household effects are also exposed to the fumigant, these act as sorptive matrices. Desorption of sulfuryl fluoride (SF) from some commodities may continue after the building has been reoccupied. The limited air exchange in modern, environmentally controlled buildings and the greater use of synthetic polymers in structures dictate a need to assess the levels of SF desorption from fumigated materials associated with human dwellings. In this study we analyze SF desorption levels over a 40-day period from 13 structural and household commodities at two exposure concentrations by gas chromatography of headspace.
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