. Author manuscript; available in PMC: 2016 Apr 26.

Published in final edited form as: J Occup Environ Hyg. 2009 Apr;6(4):211–220. doi: 10.1080/15459620902729184

Table II.

Comparison of unadjusted geometric mean toxicant concentrations inside swine hoop buildings and conventional confinement buildings compared by season. Bold typeface indicates the highest values.

Barn Type	Season	N	Endotoxin, EU/m³	Inhalable Particulate, μg/m³	Odor Threshold, dilutions	Total Microbes, org/m³ (x 10⁶)	TSA Bacteria, cfu/m³ (x 10⁴)

Hoop	Spring	9	3370	1940	90.5	1.34	164
	Summer	15	2070	851	158	4.17	201
	Autumn	6	9490	3470	179	4.44	80

Conventional	Spring	12	4100	2550	607	0.71	8.21
	Summer	20	2640	1220	337	2.28	7.35
	Autumn	8	2980	3570	462	1.57	2.91