Over the past decade, fine particulate matter (PM) pollution in China has been abated
significantly, benefiting from strict emission control measures, but particulate nitrate …

Severe events of wintertime particulate air pollution in Bei**g (winter haze) are associated
with high relative humidity (RH) and fast production of particulate sulfate from the oxidation …

Aerosol acidity largely regulates the chemistry of atmospheric particles, and resolving the
drivers of aerosol pH is key to understanding their environmental effects. We find that an …

Abstract A long-term (2013–2019) PM 2.5 speciation dataset measured in Tian**, the
largest industrial city in northern China, was analyzed with dispersion normalized positive …

Abundant substituted catechols are emitted to, and created in, the atmosphere during
wildfires and anthropogenic combustion and agro-industrial processes. While ozone (O3) …

Sulfate, nitrate and ammonium are the most abundant secondary inorganic aerosols (SIA) in
atmospheric fine particle matter (PM 2.5). Meteorological conditions, gas-particle …

Ammonium salt is an important component of particulate matter with aerodynamic diameter
less than 2.5 µm (PM2. 5) and has significant impacts on air quality, climate, and natural …

Multi-A**s Differential Optical Absorption Spectroscopy (MAX-DOAS) is a well-established
ground-based measurement technique for the detection of aerosols and trace gases …

Although many considerable efforts have been done to reveal the driving factors on haze
aggravation, however, the roles of aerosol liquid water (ALW) in secondary inorganic …

Although the anthropogenic emissions of SO 2 have decreased significantly in China, the
decrease in SO 4 2-in PM 2.5 is much smaller than that of SO 2. This implies an enhanced …