Sampling and analysis was performed on ambient air potentially contaminated with tritiated water vapor from incinerator stack emissions. A sampler designedfor monitoring tritium was modified for monitoring brief sampling periods during 1-2 day long incinerator operations. Modeling indicated that the sampler potentially can detect tritium emissions from the incinerator stack when the wind is blowing directly towards the sampler (± 8°) and the maximum allowable concentration is being released. Under these conditions, a worker near the point of sampling for a whole year could potentially receive .1% of the occupational dose limit or 2.5% of the general public dose limit. Since the wind conditions vary significantly and the maximum concentration is not continuously released, actual dosage would be much less. The results from actual sampling events indicated that the sampling/analysis system was not sensitive enough to detect ambient air concentrations. Although the sampling results were below detection limits, an extraction procedure was developed which may be utilized in other applications where airborne tritium concentrations are higher.