Arctic mercury cycling

A Dastoor, H Angot, J Bieser, JH Christensen… - Nature Reviews Earth & …, 2022 - nature.com
Anthropogenic mercury (Hg) emissions have driven marked increases in Arctic Hg levels,
which are now being impacted by regional warming, with uncertain ecological …

Mercury physicochemical and biogeochemical transformation in the atmosphere and at atmospheric interfaces: a review and future directions

PA Ariya, M Amyot, A Dastoor, D Deeds… - Chemical …, 2015 - ACS Publications
Mercury is a fascinating fluid metal that exists as liquid at 25 C (0 C= 273 K). This silver
colored d-block heavy metal exhibits noble-gas-like characteristics and solidifies at a …

Tropospheric halogen chemistry: Sources, cycling, and impacts

WR Simpson, SS Brown, A Saiz-Lopez… - Chemical …, 2015 - ACS Publications
In the past 40 years, atmospheric chemists have come to realize that halogens exert a
powerful influence on the chemical composition of the troposphere and through that …

[HTML][HTML] Arctic atmospheric mercury: Sources and changes

A Dastoor, SJ Wilson, O Travnikov, A Ryjkov… - Science of The Total …, 2022 - Elsevier
Global anthropogenic and legacy mercury (Hg) emissions are the main sources of Arctic Hg
contamination, primarily transported there via the atmosphere. This review summarizes the …

Measuring and modeling mercury in the atmosphere: a critical review

MS Gustin, HM Amos, J Huang, MB Miller… - Atmospheric …, 2015 - acp.copernicus.org
Mercury (Hg) is a global health concern due to its toxicity and ubiquitous presence in the
environment. Here we review current methods for measuring the forms of Hg in the …

Chemical cycling and deposition of atmospheric mercury in polar regions: review of recent measurements and comparison with models

H Angot, A Dastoor, F De Simone… - Atmospheric …, 2016 - acp.copernicus.org
Mercury (Hg) is a worldwide contaminant that can cause adverse health effects to wildlife
and humans. While atmospheric modeling traces the link from emissions to deposition of Hg …

Quantifying the Contributions of Aerosol- and Snow-Produced ClNO2 through Observations and 1D Modeling

D Jeong, SM McNamara, Q Chen… - ACS Earth and Space …, 2023 - ACS Publications
Nitryl chloride (ClNO2) is a radical reservoir that forms and accumulates in the nocturnal
atmospheric boundary layer influenced by combustion emissions and chloride (eg, sea salt …

First kinetic study of the atmospherically important reactions BrHg+ NO 2 and BrHg+ HOO

Y Jiao, TS Dibble - Physical Chemistry Chemical Physics, 2017 - pubs.rsc.org
We use computational chemistry to determine the rate constants and product yields for the
reactions of BrHg˙ with the atmospherically abundant radicals NO2 and HOO. The reactants …

Air–snowpack exchange of bromine, ozone and mercury in the springtime Arctic simulated by the 1-D model PHANTAS–Part 1: In-snow bromine activation and its …

K Toyota, JC McConnell, RM Staebler… - Atmospheric …, 2014 - acp.copernicus.org
To provide a theoretical framework towards a better understanding of ozone depletion
events (ODEs) and atmospheric mercury depletion events (AMDEs) in the polar boundary …

Source mechanisms and transport patterns of tropospheric bromine monoxide: findings from long-term multi-axis differential optical absorption spectroscopy …

U Frieß, K Kreher, R Querel… - Atmospheric …, 2023 - acp.copernicus.org
The presence of reactive bromine in polar regions is a widespread phenomenon that plays
an important role in the photochemistry of the Arctic and Antarctic lower troposphere …