Comparisons between Hygroscopic Measurements and UNIFAC Model Predictions for Dicarboxylic Organic Aerosol Mixtures

Table 2

Growth factors (𝐺_𝑓) for malonic and glutaric acids in this study (at 12°C) versus other studies^a.

	𝐺𝑓 (85%)		𝐺𝑓 (90%)		𝐺𝑓 (95%)
	This study	Other studies	This study	Other studies	This study	Other studies^b
Malonic acid	1.43	1.40^d; 1.37^e; 1.32^f; 1.28^g	1.52	1.73^e; 1.53^d; 1.52^g; 1.48^f	1.91	1.86^g; 1.84^d
Glutaric acid	N/A^c	1.15^e; 1.10^h; 1.09^d; 1^f	N/A^c	1.30^d; 1.29^e; 1^f	1.59	1.49^d

^a𝐺_𝑓 values for succinic acid are not measurable via bulk solution methods, since its DRH is greater than 95% at 12°C.
^bGrowth factors at 95% RH are calculated from their raw data.
^cDRH is greater than 90% at 12°C. Therefore, 𝐺_𝑓 (85%) and 𝐺_𝑓 (90%) are not measurable via bulk solution methods at 12°C. Values listed from other studies used EDB, TDMA, or bulk solution method at 22–30°C.
^dPeng et al. [14], EDB measurements at 25°C.
^ePrenni et al. [16], TDMA measurements at 30°C.
^fWise et al. [31], bulk solution measurements at 25°C.
^gBraban et al. [11], 𝐺_𝑓 is calculated from its raw data, bulk solution measurements at 285.1 K (=11.95°C).
^hCruz and Pandis [20], EDB measurements at 22–26°C.