intermittent sampling of the atmosphere 3 days/week over a 12-month period using andersen samplers in cardiff , wales , u.k. and st louis , missouri , u.s.a. , indicated average a. fumigatus spore concentrations of 13.5/m3 in st louis and 11.3/m3 in cardiff .
C0026222
missouri
C0041703
u.s.a