Volume I - Section III - Evaluation of Results and Recommendations 
Page III - 37 
Figure 3.49 Comparison of Mean Cage NH 3 Concentrations (ppm) 
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Figure 3.50 Comparison of Mean Breathing Zone NH 3 Concentrations (ppm) 
The cages show large increases in both CO2 and NH3 concentrations. The room values show 
little variation in CO2 concentration but an increase in NH3 concentration. This is due to the 
increased cage relative humidities (see figure 3.51) which causes an increased NH3 generation. 
