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 …

The chemistry of the troposphere entails a complex combination of gaseous, aqueous, and
surface processes involving a wide variety of compounds, both organic and inorganic. 1 …

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 …

This comprehensive text describes the atmospheric processes, numerical methods, and
computational techniques required for a scientist to successfully study air pollution and …

We present a comprehensive simulation of tropospheric chlorine within the GEOS-Chem
global 3-D model of oxidant–aerosol–halogen atmospheric chemistry. The simulation …

Given significant challenges with available measurements of aerosol acidity, proxy methods
are frequently used to estimate the acidity of atmospheric particles. In this study, four of the …

Strong atmospheric photochemistry in summer can produce a significant amount of
secondary aerosols, which may have a large impact on regional air quality and visibility. In …

Satellite-based retrievals of tropospheric NO 2 columns are widely used to infer NO x (≡
NO+ NO 2) emissions. These retrievals rely on model information for the vertical distribution …

Suspended aqueous aerosol droplets (< 50 µm) are microreactors for many important
atmospheric reactions. In droplets and other aquatic environments, pH is arguably the key …

Relevant concentrations of dimethyl-and diethylammonium salts (DMA+ and DEA+) were
measured in submicrometer marine aerosol collected over the North Atlantic during periods …