A method for the determination of five halogenated ether priority pollutants using time-weighted-average concentrations is described. These compounds permeate through a silicone polycarbonate membrane and are trapped onto a Tenax TA™ adsorbent. Compounds of interest are solvent desorbed by acetone, followed by separation and quantitation by gas chromatography-mass spectrometry (GC-MS). A linear relationship was found between the amount of halogenated ether trapped onto the Tenax adsorbent and the product of the concentration of ether in solution and the exposure time. Concentrations ranged from 0.04 to 7.2 mg/L for a twenty-four hour exposure. The temperature of solution was found to alter the pollutant permeation rate. This sampler offers the advantages of providing time-weighted-average concentrations with a relatively simple sampling method. 1275

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