The hydroxyl radical (OH) largely controls the tropospheric self-cleansing capacity by
reacting with gases harmful to the environment and human health. OH concentrations are …

Water microdroplets are widespread in the atmosphere. We report a striking observation that
micron-sized water droplets obtained from zero-volt spray sources (sonic spray, humidifier …

Surface ozone pollution in South Korea has increased over the past 2 decades, despite
efforts to decrease emissions, and is pervasively in exceedance of the maximum daily 8 h …

Nitrogen oxides (NO x≡ NO+ NO 2) are of central importance for air quality, climate forcing,
and nitrogen deposition to ecosystems. The Geostationary Environment Monitoring …

Tropospheric nitrogen dioxide (NO 2) measured from satellites has been widely used to
track anthropogenic NO x emissions, but its retrieval and interpretation can be complicated …

Chemical mechanisms describe the atmospheric transformations of organic and inorganic
species and connect air emissions to secondary species such as ozone, fine particles, and …

Develo** an anthropogenic carbon dioxides (CO2) emissions monitoring and verification
support (MVS) capacity is essential to support the Global Stocktake (GST) and ratchet up …

The protection of Earth's stratospheric ozone (O3) is an ongoing process under the auspices
of the universally ratified Montreal Protocol and its Amendments and adjustments. A critical …

External cycling regenerating nitrogen oxides (NOx≡ NO+ NO2) from their oxidative
reservoir, NOz, is proposed to reshape the temporal–spatial distribution of NOx and …

Previous efforts to measure atmospheric iodine have focused on marine and coastal
regions. We report the first ground‐based tropospheric iodine monoxide (IO) radical …