TABLE IV

Summary of Significance Test Results

Unpaired T- Test (5%)Sampling Method
MediaAir sampleContact plateSettle plate
Variant 1Variant 2P-values
MEAMEP0.840.810.64
MEAPDA0.840.440.46
MEARBA0.850.570.54
MEASDA0.680.350.41
MEPPDA0.980.350.23
MEPRBA1.000.440.89
MEPSDA0.810.270.21
PDARBA0.980.790.18
PDASDA0.840.930.91
RBASDA0.830.700.16