Table 5.

Ratios of measured inflammatory responses (IL-8) for in vitro human lung cell exposures to ACRO mixtures, (Table 1 and Fig. 6).

Gas-Only Exposure
Reference Condition*				A.	B.	E.	F.
A.	Clean Air			1.00	1.19	2.91	3.37
B.	Clean Air		w/MOA		1.00	2.45	2.83
E.	Clean Air	ACRO				1.00	1.16
F.	Clean Air	ACRO	w/MOA				1.00
PM-Only Exposure
Reference Condition*				A.	B.	E.	F.
A.	Clean Air			1.00	1.10	0.98	5.45
B.	Clean Air		w/MOA		1.00	0.89	4.96
E.	Clean Air	ACRO				1.00	5.57
F.	Clean Air	ACRO	w/MOA				1.00

^* MOA is mineral oil aerosol, ACRO is acrolein.