Regional severe haze represents an enormous environmental problem in China, influencing
air quality, human health, ecosystem, weather, and climate. These extremes are …

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 …

Organic aerosol (OA) is a key component of total submicron particulate matter (PM 1), and
comprehensive knowledge of OA sources across Europe is crucial to mitigate PM 1 levels …

The rapidly spread coronavirus disease (COVID-19) has limited people's outdoor activities
and hence caused substantial reductions in anthropogenic emissions around the world …

The clean air actions implemented by the Chinese government in 2013 have led to
significantly improved air quality in Bei**g. In this work, we combined the in situ …

pH is an important property of aerosol particles but is difficult to measure directly. Several
studies have estimated the pH values for fine particles in northern China winter haze using …

Air quality has been continuously improved in recent years in Bei**g, yet severe haze
episodes still frequently occur in winter. Here we deployed an Aerodyne high‐resolution …

Atmospheric PAHs (polycyclic aromatic hydrocarbons) and their derivatives are a global
concern that influences environments and threatens human health. Concentrations of 52 …

Secondary organic aerosol (SOA) constitutes a large fraction of OA, yet remains a source of
significant uncertainties in climate models due to incomplete understanding of its formation …