Figure 2.

MMA air levels measured above a mixing bowl during the mixing of MMA-containing orthopedic cement. Measurements were obtained every 45 seconds over 20 minutes using a photo-acoustic spectrophotometer. Cement A = Endurance® (DePuy); Cement B = Palacos-R® (Schering-Plough); Cement C = Simplex-P® (Stryker). (previously unpublished data courtesy of Leslie J. Ungers, MS, CIH; see also Ungers et al., (2007); Ungers & and Vendrely, (2006)). (See colour version of this figure online at www.informahealthcare.com/txc)