The local phase volume fraction, bubble frequency, bubble velocity and phase resolved temperature distributions were measured in vertical air-injected water and air-injected multifluor(TM) inert fluid baths under different injection conditions. An electroresistivity probe was employed for determination of the local volume fraction, bubble arrival frequency and bubble velocity. The phase resolved temperatures were measured using a microthermocouple. The phase resolved temperature measurements are reported for the first time in these types of how systems. The measurements showed that in the region close to the injection point, the gradients of the flow variables exhibit steep changes in radial and axial directions.