Bromine cycle

The primary natural source of bromine to the atmosphere is sea spray aerosols.

[1] The primary atmospheric sinks are sea spray deposition and photochemical reactions, which release gaseous bromine.

Bromine is used in flame retardants, pesticides, lighter fuel, antiknocking agents, and for water purification.

[4] Organic bromine gases such as CH3Br, CH2Br2, CH2IBr are emitted by microorganisms in sea ice and snow at ten-fold higher rates than from other environments.

Inorganic bromine is found in the atmosphere and is quickly cycled between its gas and its particulate phase.

Anthropogenic and natural sources of bromine. The major sources include sea spray, salt lakes, marshes, volcanos, anthropogenic sources. Sinks include exchange of brominated compounds with the stratospheric and troposphere .Bromine's chemistry is linked to other halogens such as chlorine and iodine amplify atmospheric cycling that contributes to troposphere and stratosphere ozone layer destruction. [ 1 ] Figure modified from [ 2 ]
Salt deposits in the Dead Sea