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 …

Atmospheric oxidation of sulfur dioxide (SO2) forms sulfate-containing aerosol particles that
impact air quality, climate, and human and ecosystem health. It is well-known that in-cloud …

Understanding the factors that influence the airborne survival of viruses such as severe
acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in aerosols is important for …

There is ample evidence that masking and social distancing are effective in reducing severe
acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission. However, due to the …

The formation mechanism of aerosol sulfate during wintertime haze events in China is still
largely unknown. As companions, SO2 and transition metals are mainly emitted from coal …

Although the multiphase chemistry of SO2 in aerosol particles is of great importance to air
quality under polluted haze conditions, a fundamental understanding of the pertinent …

Predicting the formation of ice in the atmosphere presents one of the great challenges in
physical sciences with important implications for the chemistry and composition of the …

Aerosols impact climate, human health, and the chemistry of the atmosphere, and aerosol
pH plays a major role in the physicochemical properties of the aerosol. However, there …

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 …

In recent years, Aerodyne aerosol mass spectrometers (AMS) have been used in many
locations around the world to study the size-resolved, nonrefractory chemical composition of …