Liu, Y. J. ; Seco, R. ; Kim, S. ; Guenther, A. B. ; Goldstein, A. H. ; Keutsch, F. N. ; Springston, S. R. ; Watson, T. B. ; Artaxo, P. ; Souza, R. A. F. ; et al. Isoprene Photo-Oxidation Products Quantify the Effect of Pollution on Hydroxyl Radicals over Amazonia. Science Advances 2018, 4, eaar2547.