Table 5. Inflammatory markers in plasma.

Exposure condition
	0 ppm	Low ACR	High ACR
C-reactive protein, mg/l
Before	0.7 (1.1)	0.8 (1.6)	1.3 (2.8)
After	0.6 (0.9)	0.8 (1.4)	1.2 (2.4)
3.5 h after	0.7 (1.0)	0.6 (1.0)	0.8 (1.4)
Serum amyloid A protein, mg/l
Before	3.8 (5.3)	3.1 (3.8)	3.8 (3.6)
After	3.5 (4.7)	2.9 (3.2)	3.4 (2.7)
3.5 h after	3.2 (3.8)	3.0 (2.6)	2.5 (1.0)
Fibrinogen, g/l
Before	2.6 (0.5)	2.5 (0.5)	2.5 (0.5)
After	2.6 (0.5)	2.6 (0.5)	2.6 (0.5)
3.5 h after	2.6 (0.5)	2.5 (0.4)	2.6 (0.4)
Factor VIII, kiE/l
Before	1.2 (0.3)	1.2 (0.3)	1.3 (0.4)
After	1.1 (0.3)	1.2 (0.4)	1.2 (0.3)
3.5 h after	1.3 (0.4)	1.2 (0.4)	1.2 (0.3)
von Willebrand factor, kiE/l
Before	0.9 (0.3)	0.9 (0.3)	1.0 (0.3)
After	0.9 (0.3)	0.9 (0.3)	0.9 (0.3)
3.5 h after	1.0 (0.3)	1.1 (0.7)	0.9 (0.3)
Clara cell protein CC16, ng/ml
Before	19.3 (10.7)	21.4 (10.1)	19.6 (9.1)
After	19.2 (9.4)	20.0 (9.0)	19.6 (9.1)
3.5 h after	21.7 (10.8)	18.6 (9.0)	20.1 (12.4)
	0 ppm		High ACR
Interleukin-6, pg/ml
Before	0.8 (0.4)		0.9 (0.4)
After	0.7 (0.3)		0.7 (0.3)
3.5 h after	0.9 (0.5)		0.7 (0.3)

Samples collected from 18 volunteers before, immediately after, and 3.5 h after a 2 h exposure to 0 ppm (control exposure), 0.05 and 0.1 ppm of acrolein. Values are given as arithmetic means with standard deviations in parentheses.