Correction to “Isotopic characterization of aerosol organic carbon components over the eastern United States”

[1] In the paper “Isotopic characterization of aerosol organic carbon components over the eastern United States” by A. S. Wozniak (Journal of Geophysical Research, 117, D13303, doi:10.1029/2011JD017153, 2012), the Table 2 column headings “Millbrook” and “Harcum” were published incorrectly. The correct Table 2 appears here.

Table 2. Isotopic Signatures and Carbon Contents of Large-Volume Aerosol Samples Collected for Detailed Isotopic Analyses^a

Aerosol OC Component	Parameter	Millbrook				Harcum				Overall Mean
		March 7–10	May 14–16	Aug 10–12	Mean	Feb 19–21	April 10–12	Aug 6–8	Mean
TOC	δ^13C (‰)	−25.3	−25.8	−24.7	−25.3	−26.2	−26.5	−24.4	−25.7	−25.5
	Δ^14C (‰)	−448	−39	25	−154	−252	−388	−165	−268	−211
	fOC	0.134	0.228	0.281	0.214	0.179	0.169	0.154	0.167	0.191
WSOC	δ^13C (‰)	nd^b	−25.1	−24.4	−24.7	−26.1	−24.8	−25.2	−25.4	−25.1
	Δ^14C (‰)	nd	−17	6	−6	26	11	22	20	10
	fWSOC^c	nd	0.22	0.47	0.34	0.29	0.16	0.26	0.24	0.28
WIOC^d	δ^13C (‰)	nd	−26.0	−25.1	−25.6	−26.7	−26.8	−24.2	−25.9	−25.8
	Δ^14C (‰)	nd	−45	42	−1	−367	−461	−231	−353	−212
	fWIOC	nd	0.78	0.53	0.66	0.71	0.84	0.74	0.76	0.72
TSE^e	δ^13C (‰)	−27.0	nd	−26.2	−26.6	nd	−27.3	−28.2	−27.6	−27.2
	Δ^14C (‰)	−476	nd	−90	−283	nd	−430	−119	−190	−227
	fTSE	0.67	nd	0.90	0.79	nd	0.43	0.74	0.59	0.69
Aliphatic	δ^13C (‰)	−28.6	−27.7	nd^f	−28.2	nd	−27.3	−28.9	−28.1	−28.1
	Δ^14C (‰)	−794	−820	−961	−858	nd	−834	−858	−846	−853
	faliphatic	0.007	0.001	0.003	0.0039	nd	0.007	0.002	0.004	0.004
Aromatic	δ^13C (‰)	−27.8	−29.6	−28.3	−28.6	−28.3	−28.4	−27.8	−28.2	−28.4
	Δ^14C (‰)	−692	−77	−446	−405	−466	−540	−446	−484	−444
	faromatic	0.015	0.009	0.004	0.009	0.009	0.007	0.003	0.007	0.006
Polar	δ^13C (‰)	−27.8	−26.1	−28.0	−27.3	−28.6	nd	−26.2	−27.4	−27.3
	Δ^14C (‰)	−750	24	−93	−273	−168	nd	−240	−204	−245
	fpolar	0.24	0.039	0.25	0.18	0.063	nd	0.066	0.065	0.13

• a All reported δ¹³C and Δ¹⁴C values were corrected for blank contributions following procedures outlined in the text.
• b ‘nd’ denotes samples for which values were not determined.
• c Values represent the fraction of TOC accounted for by the parameter of interest (f_WSOC, f_WIOC, f_TSE, f_aliphatic, f_aromatic, f_polar).
• d WIOC (water-insoluble organic carbon) values were calculated by mass balance using values for TOC and WSOC (WIOC = TOC-WSOC): , where X represents either δ¹³C or Δ¹⁴C for the component of interest (TOC, WSOC, WIOC).
• e TSE = Total Solvent Extract.
• f Sample was too small for measurement of both δ¹³C and Δ¹⁴C. A value of −25.0‰ was assumed for Δ¹⁴C fractionation corrections.