Event4d ago

Arctic bromine explosions amplify ozone loss and mercury oxidation, new BAS research shows

Recent Arctic measurements show 30–40 ppb ozone depletion linked to bromine releases. A new BAS study, combining MAX‑DOAS, satellite and model data, maps BrO blooms in March–May, finds bromine explosions explain 8–52 % of extreme depletion events and boost mercury oxidation.

BAS
1d agoLatest report
Spatiotemporal distribution and source analysis of Arctic tropospheric reactive bromine and ...(opens in a new tab)
A long‑term study at Ny‑Ålesund shows spring bromine explosions, largely driven by sea‑salt aerosols and blowing snow over multi‑year sea ice, strongly deplete boundary‑layer ozone and oxidize mercury, and that conventional estimates of total bromine during extreme events underestimate the inventory.
HERO
4d agoFirst report
PHOTOCHEMICAL BROMINE PRODUCTION IMPLICATED IN ARCTIC BOUNDARY ...(opens in a new tab)
Recent Arctic measurements link episodic photochemical bromine production to 30–40 ppb depletion of boundary‑layer ozone.