The First WMO Antarctic Ozone Bulletin of 2010

The WMO Antarctic Ozone Bulletin contains information on the state of the ozone layer in the Antarctic at roughly two week intervals from August to November. The bulletins are based on ground-based ozone data provided by WMO Members and satellites to observe ozone globally. The first bulletin in 2010 (7.2 MB) indicates "that the area where total ozone is less than 220 DU (“ozone hole area”) is low compared to recent years", adding that its evolution will depend on the meteorological conditions between now and early October, when depletion usually ends. Thus, "it is still too early to give a definitive statement about the development of this year's ozone hole and the degree of ozone loss that will occur", the bulletin stated.