Table 3. Gas-Phase Molar Yields and Carbon Balance (%) for the Ozonolysis Experiments							
Terpene	Formaldehyde,% Yield	Acetaldehyde,% Yield	Formic Acid,% Yield	Acetone,% Yield	Acetic Acid, % Yield	UnID,a % Yield	C Balance,b %
3-carene	25 +/- 2	3.9 +/- 0.4	11 +/- 1	9.5 +/- 1	14 +/- 1	19 +/- 1	55 +/- 2
alpha-terpinene	4 +/- 2	1 +/- 0.3	9.6 +/- 2	6.3 +/- 1	9.5 +/- 2	31 +/- 2	58 +/- 4
beta-caryophyllenec	76 +/- 20	0.9 +/- 0.3	3.9 +/- 1	1.1 +/- 0.3	20 +/- 5	6.4 +/- 0.8	39 +/- 2
alpha-humulenec	3.5 +/- 1.1	0.9 +/- 0.3	0.4 +/- 0.2	1.2 +/- 0.4	12 +/- 1	9.5 +/- 0.8	33 +/- 2
alpha-pinened	28 +/- 3	2.9 +/- 0.3	7.5 +/- 0.7	5.9 +/- 0.5	8 +/- 0.9	15 +/- 1	67 +/- 3
terpinolene	29 +/- 3	9 +/- 0.8	4 +/- 0.4	44 +/- 4	5.8 +/- 0.6	81 +/- 9	77 +/- 13
beta-pinened	65 +/- 6	2.4 +/- 0.2	4 +/- 0.4	3.6  +/- 0.3	8.6 +/- 0.9	20 +/- 1	54 +/- 3
myrcene	51 +/- 5	15 +/- 2	3.9 +/- 0.4	23 +/- 2	5.3 +/- 0.5	92 +/- 10	69 +/- 14
methyl chavicol	61 +/- 5	¦	11 +/- 1	1.1 +/- 0.1	2.2 +/- 0.3	50 +/- 7	55 +/- 8
linalool	34 +/- 3	14 +/- 1	2.5 +/- 0.3	16 +/- 1	5.1 +/- 0.5	92 +/- 9	63 +/- 13
aSum of the yields of all product ions (m/z) listed in Table 1.							
bThe carbon balance (%) from identified gas-phase products (formaldehyde, formic acid, acetaldehyde, acetone, nopinone, and pinonaldehyde), plus the yield of the unidentified compounds, assuming a conservative number of C for each observed ion, and from the particle-phase, assuming the SOA is 60% C. The pinonaldehyde yield used for the C balance calculation was the lower-limit yield of 19%.							
cSeed aerosol was not used in the sesquiterpene experiments.							
dFrom alpha-pinene ozonolysis, the percent molar yield of pinonaldehyde was estimated to range from 19 +/- 2% to 34 +/- 3% (see text) and the molar yield of alpha-pinene oxide was 5.4 +/- 0.6%. From beta-pinene ozonolysis the yield of nopinone from was 17 +/- 2%.