Extended Data Fig. 2: Surface dry-air mole fractions for CFC-13 and CFC-115 measured by the NOAA network.
From: Global increase of ozone-depleting chlorofluorocarbons from 2010 to 2020
(a) CFC-13 and (b) CFC-115 hemispheric monthly means (circles) and the annual global mean (black line) derived from measurements from the NOAA network. See the caption of Extended Data Fig. 1 for a discussion of these data.
