Skip to content

Carbonate precipitation in brine – a potential trigger for tropospheric ozone depletion events

by R. Sander, J. Burrows, L. Kaleschke
Atmospheric Chemistry and Physics ()
Get full text at journal


Tropospheric ozone depletion events (ODEs) at high latitudes were discovered 20 years ago and are attributed to bromine explosions. However, an unresolved issue is the explanation of how the acid-catalyzed reaction cycle is triggered in atmospheric particles derived from alkaline sea water. By simulating the chemistry occuring in polar regions over recently formed sea ice, we can model successfully the transformation of inert sea-salt bromide to reactive bromine monoxide (BrO) and the subsequent ODE when precipitation of calcium carbonate from freezing sea water is taken into account. In addition, we found the temperature dependence of the equilibrium BrCl+Br-=Br2Cl- to be important.

Cite this document (BETA)

Authors on Mendeley

Readership Statistics

41 Readers on Mendeley
by Discipline
32% Earth and Planetary Sciences
29% Environmental Science
20% Chemistry
by Academic Status
37% Researcher
27% Student > Ph. D. Student
7% Professor > Associate Professor
by Country
5% United States
5% United Kingdom
2% Japan

Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Sign up & Download

Already have an account? Sign in