Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Averaged ozone hole area (TOC < 220 DU) in the Antarctic spring (September and October) during the whole simulation period (1980–2015). The ozone hole area in the simulation without iodine is shown in yellow, while the expansion of the ozone hole area caused by iodine is depicted in green. The impact of iodine on the size of the ozone hole area is an expansion of ∼11% or 1.2 million km2.
