Step 2 Step3 Step4
Morning 0.86(0.14) 0.72(0.09) 0.59(0.09)
Early afternoon 0.88(0.05) 0.75(0.09) 0.63(0.09)
Early night 0.83(0.10) 0.67(0.09) 0.48(0.12)
Table 2: Indoor/Outdoor mean ozone concentration ratios for 20 groundfloor dwellings in Salamina Island ([Ο3]in/[O3]out, Standard deviations are shown in parenthesis).