Correction to Supporting Information for Xu et al., Effects of anthropogenic emissions on aerosol formation from isoprene and monoterpenes in the southeastern United States

EARTH, ATMOSPHERIC, AND PLANETARY SCIENCES Correction to Supporting Information for “Effects of anthropogenic emissions on aerosol formation from isoprene and monoterpenes in the southeastern United States,” by Lu Xu, Hongyu Guo, Christopher M. Boyd, Mitchel Klein, Aikaterini Bougiatioti, Kate M. Cerully, James R. Hite, Gabriel Isaacman-VanWertz, Nathan M. Kreisberg, Christoph Knote, Kevin Olson, Abigail Koss, Allen H. Goldstein, Susanne V. Hering, Joost de Gouw, Karsten Baumann, Shan-Hu Lee, Athanasios Nenes, Rodney J. Weber, and Nga Lee Ng, which appeared in issue 1, January 6, 2015, of Proc Natl Acad Sci USA (112:37–42; first published December 22, 2014; 10.1073/pnas.1417609112).

The authors wish to note, “The concentration of the nitrate groups in the organic nitrates in Fig. 1D was overestimated. As a result, the organic nitrates contribute 20–30% (instead of 40–60%) of LO-OOA in early morning based on the concentration of nitrate functional groups and the assumption that the average molecular weight of organic nitrates ranges from 200 g·mol⁻¹ to 300 g·mol⁻¹.” As a result, Fig. S11 in the SI Appendix appeared incorrectly. The SI Appendix has been corrected online.