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 …

Tropospheric OH and HO 2 radicals: field measurements and model comparisons

D Stone, LK Whalley, DE Heard - Chemical Society Reviews, 2012 - pubs.rsc.org
The hydroxyl radical, OH, initiates the removal of the majority of trace gases in the
atmosphere, and together with the closely coupled species, the hydroperoxy radical, HO2, is …

Role of iodine oxoacids in atmospheric aerosol nucleation

XC He, YJ Tham, L Dada, M Wang, H Finkenzeller… - Science, 2021 - science.org
Iodic acid (HIO3) is known to form aerosol particles in coastal marine regions, but predicted
nucleation and growth rates are lacking. Using the CERN CLOUD (Cosmics Leaving …

Iodine oxoacids enhance nucleation of sulfuric acid particles in the atmosphere

XC He, M Simon, S Iyer, HB Xie, B Rörup, J Shen… - Science, 2023 - science.org
The main nucleating vapor in the atmosphere is thought to be sulfuric acid (H2SO4),
stabilized by ammonia (NH3). However, in marine and polar regions, NH3 is generally low …

[HTML][HTML] Natural short-lived halogens exert an indirect cooling effect on climate

A Saiz-Lopez, RP Fernandez, Q Li, CA Cuevas, X Fu… - Nature, 2023 - nature.com
Observational evidence shows the ubiquitous presence of ocean-emitted short-lived
halogens in the global atmosphere,–. Natural emissions of these chemical compounds have …

[HTML][HTML] Global tropospheric halogen (Cl, Br, I) chemistry and its impact on oxidants

X Wang, DJ Jacob, W Downs, S Zhai… - Atmospheric …, 2021 - acp.copernicus.org
We present an updated mechanism for tropospheric halogen (Cl+ Br+ I) chemistry in the
GEOS-Chem global atmospheric chemical transport model and apply it to investigate …

Molecular-scale evidence of aerosol particle formation via sequential addition of HIO3

M Sipilä, N Sarnela, T Jokinen, H Henschel… - Nature, 2016 - nature.com
Homogeneous nucleation and subsequent cluster growth leads to the formation of new
aerosol particles in the atmosphere. The nucleation of sulfuric acid and organic vapours is …

Global impacts of tropospheric halogens (Cl, Br, I) on oxidants and composition in GEOS-Chem

T Sherwen, JA Schmidt, MJ Evans… - Atmospheric …, 2016 - acp.copernicus.org
We present a simulation of the global present-day composition of the troposphere which
includes the chemistry of halogens (Cl, Br, I). Building on previous work within the GEOS …

Atmospheric chemistry of iodine

A Saiz-Lopez, JMC Plane, AR Baker… - Chemical …, 2012 - ACS Publications
The atmospheric chemistry of iodine is important in diverse ways. First, it provides the route
for iodine, which is an essential dietary element for mammals, to be transported from its …

Tropospheric Ozone Assessment Report: A critical review of changes in the tropospheric ozone burden and budget from 1850 to 2100

AT Archibald, JL Neu, YF Elshorbany… - Elem Sci …, 2020 - online.ucpress.edu
Our understanding of the processes that control the burden and budget of tropospheric
ozone has changed dramatically over the last 60 years. Models are the key tools used to …