Table 2: Horse allergen levels in vacuumed dust and airborne settled dust from Petri dishes in Study II.

Vacuumed dust
(U/g dust)
Petri dish
(U/m2/day)

Sampling year20032003
Analysis year (standard ELISA assay)20032003
No. of samples116116
Samples < dl4%72%
GM (total)134373.9
GM, classes >12% horse contact205196.2
GM, classes ≤12% horse contact88056.7