Editing Sulfur dioxide (section)

===Effects on ozone layer===
Sulfur dioxide aerosols in the stratosphere can contribute to [[ozone depletion]] in the presence of chlorofluorocarbons and other halogenated ozone-depleting substances.<ref name=klobas2017>{{cite journal|last1=Klobas|first1=J.E.|last2=Wilmouth|first2=D.M.|last3=Weisenstein|first3=D.K.|last4=Anderson|first4=J.G.|last5=Salawitch|first5=R.J.|title=Ozone depletion following future volcanic eruptions|journal=Geophysical Research Letters|volume=44|issue=14|pages=7490–7499|year=2017|doi=10.1002/2017GL073972|doi-access=free}}</ref>  The effects of volcanic eruptions containing sulfur dioxide aerosols on the ozone layer are complex, however.  In the absence of anthropogenic or biogenic halogenated compounds in the lower stratosphere, depletion of [[dinitrogen pentoxide]] in the middle stratosphere associated with its reactivity to the aerosols can promote ozone formation.<ref name=klobas2017/>  Injection of sulfur dioxide and large amounts of water vapor into the stratosphere following the [[2022 Hunga Tonga–Hunga Haʻapai eruption and tsunami|2022 eruption of Hunga Tonga-Hunga Haʻapai]] resulted in altered atmospheric circulation that promoted a decrease in ozone in the southern latitudes but an increase in the tropics.<ref>{{cite web|url=https://www.chemistry.harvard.edu/news/new-research-massive-2022-eruption-reduced-ozone-levels|title=New research: Massive 2022 eruption reduced ozone levels|website=Department of Chemistry and Chemical Biology|publisher=Harvard University|date=21 November 2023|access-date=7 January 2025}}</ref><ref>{{cite journal|last1=Wilmouth|first1=D.M.|last2=Østerstrøm|first2=F.F.|last3=Smith|first3=J.B.|last4=Anderson|first4=J.G.|last5=Salawitch|first5=R.J.|title=Impact of the Hunga Tonga volcanic eruption on stratospheric composition|journal=Proceedings of the National Academy of Sciences of the United States of America|volume=120|issue=46|id=Art. No. e2301994120|doi=10.1073/pnas.2301994120|doi-access=free|year=2023|pages=e2301994120 |pmid=37903247 |pmc=10655571}}</ref>  The additional presence of hydrochloric acid in eruptions can result in net ozone depletion.<ref name=klobas2017/>