Table 1. H/C, O/C, Percent Aliphatic (% Aliph.), Percent Aromatic (% Arom.), Percent Lipid-Like (% Lipid-Like), Percent Secondary Organic Aerosol Like (% SOA-Like), Percent Surfactant-Like (% Surf-Like), and Minimum Surface Tension (ST Min.) Measured for Organics Extracted from Particles in the Three Air Mass Source Regions, as a Function of Particle Diameter Range and for the Average (Avg.) of the Submicron and Supermicron Particle Diameters.

	<0.18 μm	0.18–0.32 μm	0.32–0.56 μm	0.56–1.0 μm	1.0–1.8 μm	1.8–3.2 μm	3.2–5.6 μm	5.6–10 μm	10–18 μm	>18 μm	submicron avg.	supermicron avg.
Marine Influenced
H/C	1.48	1.40	1.44	1.44	1.39	1.44	1.38	1.46	1.39	1.41	1.44	1.41
O/C	0.31	0.32	0.31	0.30	0.31	0.32	0.32	0.33	0.31	0.33	0.31	0.31
% aliph.	36	35	34	38	31	37	34	35	29	46	36	35
% arom.	15	23	20	21	24	19	24	17	20	22	20	21
% lipid-like	30	28	29	29	28	29	27	28	24	26	29	27
% SOA-like	9	9	10	8	7	10	7	9	11	8	9	9
% surf-like	68	64	65	68	68	62	66	62	63	63	66	64
ST min.	36.0	36.8	34.8	39.5	38.9	48.3	37.5	43.9	43.2	41.6	36.8	42.2
Mixed
H/C	1.55	1.55	1.52	1.56	1.49	1.58	1.49	1.55	1.53	1.55	1.55	1.53
O/C	0.27	0.27	0.28	0.27	0.30	0.29	0.30	0.29	0.30	0.31	0.27	0.30
% aliph.	39	38	34	41	33	41	33	38	39	39	38	37
% arom.	11	10	12	9	16	9	16	11	12	10	10	12
% lipid-like	40	36	30	34	27	41	24	32	33	30	36	31
% SOA-like	8	8	9	6	10	7	8	10	8	6	8	8
% surf-like	74	69	69	73	71	72	68	69	69	66	72	69
ST min.	38.5	42.7	40.3	40.0	45.9	37.9	38.3	38.6	41.8	42.3	40.4	40.8
Continental Influenced
H/C	1.53	1.49	1.47	1.48	1.49	1.45	1.50	1.46	1.43	1.47	1.49	1.47
O/C	0.32	0.31	0.37	0.29	0.30	0.32	0.27	0.34	0.34	0.33	0.32	0.32
% aliph.	38	37	33	37	36	29	36	35	29	33	36	33
% arom.	11	13	16	16	15	16	14	15	19	14	14	15
% lipid-like	26	23	16	28	22	21	31	23	17	21	23	23
% SOA-like	12	12	14	8	10	11	6	14	10	9	12	10
% surf-like	64	63	53	67	66	63	73	63	60	66	62	65