Acidity, defined as pH, is a central component of aqueous chemistry. In the atmosphere, the
acidity of condensed phases (aerosol particles, cloud water, and fog droplets) governs the …

Severe haze events with exceedingly high-levels of fine aerosols occur frequently over the
past decades in the North China Plain (NCP), exerting profound impacts on human health …

Secondary organic aerosol (SOA) produced by atmospheric oxidation of primary emitted
precursors is a major contributor to fine particulate matter (PM2. 5) air pollution worldwide …

Emitted by numerous primary sources and formed by secondary sources, atmospheric
brown carbon (BrC) aerosol is chemically complex. As BrC aerosol ages in the atmosphere …

Multiphase chemistry plays a vital role in the Earth system, climate, and health. Chemical
reactions, mass transport, and phase transitions between gases, liquids, and solids are …

Multiple linkages connect air quality and climate change. Many air pollutant sources also
emit carbon dioxide (CO2), the dominant anthropogenic greenhouse gas (GHG). The two …

The mechanisms leading to the formation of secondary organic aerosol (SOA) are an
important subject of ongoing research for both air quality and climate. Recent laboratory …

The acidity of aqueous atmospheric solutions is a key parameter driving both the partitioning
of semi-volatile acidic and basic trace gases and their aqueous-phase chemistry. In addition …

Organosulfates (OSs), also referred to as organic sulfate esters, are well-known and
ubiquitous constituents of atmospheric aerosol particles. Commonly, they are assumed to …

One of the least understood aspects in atmospheric chemistry is how urban emissions
influence the formation of natural organic aerosols, which affect Earth's energy budget. The …