TABLE 1.

Percent reaerosolization factors for defined activities on different flooring surfaces at heights of 0, 1, and 1.5 m

Flooring and activity type (no. of samples)	Reaerosolization factor (% cm2 · liter−1) (95% confidence interval)
	At ht above contaminated flooring of:			Total
	0 m	1 m	1.5 m
Carpet
Heavy (10)	0.57 (0.47–0.67)	0.41 (0.35–0.48)	0.17 (0.16–0.19)	1.16 (1.00–1.32)
Light (8)	0.14 (0.11–0.16)	0.10 (0.08–0.12)	0.05 (0.04–0.07)	0.29 (0.24–0.35)
PVC
Heavy (8)	0.0055 (0.0031–0.0079)	0.0033 (0.0023–0.0043)	0.0010 (0.004–0.0016)	0.0099 (0.0069–0.128)
Light (10)	0.00051 (0.00038–0.00065)	0.00037 (0.00027–0.00047)	0.00017 (0.0001–0.00025)	0.00105 (0.00081–0.00128)