Halogen atoms affect the budget of ozone and the fate of pollutants such as hydrocarbons
and mercury. Yet their sources and significances in polluted continental regions are poorly …

Chlorine radicals are strong atmospheric oxidants known to play an important role in the
depletion of surface ozone and the degradation of methane in the Arctic troposphere. Initial …

Polar oceans and sea ice cover 15% of the Earth's ocean surface, and the environment is
changing rapidly at both poles. Improving knowledge on the interactions between the …

Bromine radicals (Br·) cause ozone depletion and mercury deposition in the Arctic
atmospheric boundary layer, following Polar sunrise. These Br radicals are primarily formed …

Reactive chlorine and bromine species emitted from snow and aerosols can significantly
alter the oxidative capacity of the polar boundary layer. However, halogen production …

Ozone depletion events (ODEs) occur every spring in the Arctic and have implications for the
region's atmospheric oxidizing capacity, radiative balance, and mercury oxidation. Here, we …

Sea ice is an active component of the Earth's climate system, interacting with both the
atmosphere and the ocean. Arctic sea ice is commonly covered by melt ponds during late …

Mercury is released into the atmosphere as atomic Hg (0) where it is oxidized under
ultraviolet light to form oxidized mercury molecules such as XHgY, BrHgOX, BrHgXO …

Chlorine radicals are strong atmospheric oxidants known to play an important role in the
depletion of surface ozone and the degradation of methane in the Arctic troposphere. Initial …

Polar sunrise in both the Arctic and Antarctic coincides with sharp, episodic decreases of
tropospheric ozone mixing ratios. These “ozone depletion events”(ODEs) are caused by …