1 Erratum to: Exp Fluids (2013) 54:1501 DOI 10.1007/s00348-013-1501-y

In the original publication of the article, the figures 2, 3, and 4 are in the correct order, but the captions are not corresponding. The figures 2, 3, and 4 with the correct captions are given below:

Fig. 2
figure 2

Specification of the influence of surfactants in the medium comparing experimentally measured rising bubble velocities with data from the literature (Clift et al. 1978) for contaminated and pure water

Fig. 3
figure 3

Calibration of CO2 concentration as a function of pH in the tank using a Metler Toledo CO2 InPro 5000 probe and pH equilibrium with atmosphere to complete the PLIF measuring range. Empty dots correspond to measurements below the manufacturer’s specification operating limit of 14.7 mg/L

Fig. 4
figure 4

Schematic view of the camera observation area and of the region of interest in which the CO2 concentrations have been measured