This Review aims to summarize the current understanding of bulk tropospheric aqueous-
phase chemistry. Because a complete review of all developments in this area would be …

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 …

Aerosol− cloud interactions account for the largest uncertainty in current estimates of
changes in radiative forcing according to the most recent IPCC report. 1 The term “aerosol …

Measurements of OH, HO 2, complex RO 2 (alkene-and aromatic-related RO 2) and total RO
2 radicals taken during the integrated Study of AIR Pollution PROcesses in Bei**g …

Wintertime in situ measurements of OH, HO 2 and RO 2 radicals and OH reactivity were
made in central Bei**g during November and December 2016. Exceptionally elevated NO …

We use 2005–2009 satellite observations of formaldehyde (HCHO) columns from the OMI
instrument to infer biogenic isoprene emissions at monthly 1× 1° resolution over the African …

The hydroperoxyl radical (HO 2) is a major precursor of OH and tropospheric ozone. OH is
the main atmospheric oxidant, while tropospheric ozone is an important surface pollutant …

Measurements of OH, HO 2, RO 2 i (alkene and aromatic-related RO 2) and total RO 2
radicals taken during the ClearfLo campaign in central London in the summer of 2012 are …

Observations of the tropical atmosphere are fundamental to the understanding of global
changes in air quality, atmospheric oxidation capacity and climate, yet the tropics are under …

Laboratory studies have revealed that alkene-derived RO 2 and longer-chain alkane-
derived RO 2 (> C 3) radicals rapidly convert to HO 2 and then to OH in the presence of NO …