Volume I - Section III - Evaluation of Results and Recommendations 
Page III - 17 
Figures 3.21 and 3.22 show slices through the racks of cages for the radial diffuser with ceiling 
and low level exhausts. The low level exhausts clearly show lower CO 2 concentrations within the 
cages with less orange/red and more blue/green coloration. The variation in concentration is 
similar in both cases, with the highest values on the left and right edges of the three rack wall, 
and slightly lower concentrations in the center and on the tops of most of the racks. 
