The stripping of volatile organic compounds (VOCs) by surface aerators was evaluated in experiments performed at field scale. Each experiment consisted of dosing a tank containing tapwater with a selection of VOCs, activation of the aerator and subsequent monitoring of the disappearance of the compounds. The tank contents were deoxygenated prior to the experiment thereby allowing concurrent measurement of the uptake of oxygen. Experiments were performed with two aerators with differing power inputs and aeration patterns and over a range of temperatures from 3 to 22oC. Overall mass transfer coefficients were calculated for each compound in each experiment. The impacts of temperature, aerator horsepower on the mass transfer coefficients of the candidate compounds were examined and relationships were calibrated with the experimental data. The fundamental gas and liquid mass transfer coefficients were calibrated and the ratio of gas to liquid phase mass transfer coefficient was estimated to range from 18 to 26. This ratio is lower than that previously reported in the literature and would suggest a grater impact of gas phase resistance than previously thought. The lower value of the ratio may be attributed to mass transfer limitations caused by entrained air.