Table 6.

Emission factors for major and select trace gases.

Compound	KBG					Wheat
	Aerostat	Ground	OBTF	AVG	STD	Aerostat	Ground	OBTF	AVG	STD
MCE	0.96a	0.94a	0.98	0.96	0.02	0.95a	0.96a	0.98	0.96	0.02
	g/kg biomass					g/kg biomass
Methane	1.0	1.8	0.58	1.1	0.61	1.1	0.81	0.61	0.83	0.23
Carbon Monoxide	44.0	59.	20.	41.	20	47.	42.	20.	37	14.
Carbon Dioxide	1600	1500	1600	1600	33	1500	1500	1500	1500	47.0
Sum of VOCsb	1.7	2.3	0.36	1.4	0.97	1.2	1.0	0.61	0.96	0.32
	mg/kg biomass					mg/kg biomass
Vinyl Acetate	390	620	53	360	290	280	300	73	220	124
Acrolein	270	430	51	250	190	210	200	62	160	83
Acetone	270	200	ND	240	52	210	150	27	130	94
Propene	190	290	120	200	84	150	110	280	180	87
Benzene	110	170	34	110	68	66	55	40	54	13
Toluene	96	140	32	89	54	120	39	ND	80	58
Acetonitrile	97	130	27	84	51	82	53	12	49	35
2-Butanone (MEK)	82	240	19	110	110	130	42	27	67	56
1,3-Butadiene	68	90	2.2	53	46	42	25	15	27	14
Acrylonitrile	36	46	8.2	30.	20	18	14	3.4	12	7.5
Styrene	28	41	1.9	23	20	13	9.4	4.6	9.0	4.3
m-,p-Xylenes	17	27	5.7	17	11	11	8.7	6.1	8.7	2.6

^aCO measurements from SUMMA canister grab sample.

^bSum of detectable compounds.