The Sentinel-5P Bromine Monoxide (BrO) total vertical column product was developed for the monitoring of the daily global spatial and temporal distribution of this trace gas in the Earth's atmosphere.

Inorganic bromine plays an important role in the chemistry of the atmosphere. Bromine monoxide contributes to mid-latitude ozone loss and to polar ozone depletion in the stratosphere. In the troposphere, BrO is released over sea ice covered regions every polar spring and the resulting chemical reactions contribute to ozone depletion and mercury deposition. BrO can further be found over salt lakes and in volcanic plumes.

Information about BrO

Processor version history

  • v01.02.02 (2022-07-15)
    • Fixes QDOAS failing for certain midnight-crossing orbits
  • v01.02.01 (2022-06-01)
    • Initial public release

Known issues

The dataset does not provide a full timeline and products for several orbits are known to be missing. Information about known acquisition gaps in the data can be found on the Mission Status webpage of Sentinel-5P.

Interactive product browsing and download

Available product files can be selected and downloaded using the SpatioTemporal Asset Catalog (STAC) browser interface.

This browser interface does not currently support the more advanced search queries made possible by the STAC API. For that you will need to programmatically query the S5P-PAL STAC endpoint.


This service is provided as part of the Sentinel-5P Product Algorithm Laboratory (S5P-PAL) and contains modified Copernicus Sentinel data processed by S[&]T.

Questions regarding this service can be send to the ESA EO Support Helpdesk.