Aerosols of biological origin play a vital role in the Earth system, particularly in the
interactions between atmosphere, biosphere, climate, and public health. Airborne bacteria …

Anthropogenic emissions and land use changes have modified atmospheric aerosol
concentrations and size distributions over time. Understanding preindustrial conditions and …

Black carbon aerosol plays a unique and important role in Earth's climate system. Black
carbon is a type of carbonaceous material with a unique combination of physical properties …

The literature on atmospheric particulate matter (PM), or atmospheric aerosol, has increased
enormously over the last 2 decades and amounts now to some 1500–2000 papers per year …

Atmospheric aerosol particles of biological origin are a very diverse group of biological
materials and structures, including microorganisms, dispersal units, fragments and …

The formation of ice particles in the Earth's atmosphere strongly affects the properties of
clouds and their impact on climate. Despite the importance of ice formation in determining …

Ice particle formation in tropospheric clouds significantly changes cloud radiative and
microphysical properties. Ice nucleation in the troposphere via homogeneous freezing …

The amount of ice present in mixed-phase clouds, which contain both supercooled liquid
water droplets and ice particles, affects cloud extent, lifetime, particle size and radiative …

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 …

Atmospheric aerosols are complex mixtures of different chemical species, and individual
particles exist in many different shapes and morphologies. Together, these characteristics …