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

Extensive research has been done on the processes that lead to the formation of secondary
organic aerosol (SOA) including the atmospheric oxidation of volatile organic compounds …

Formaldehyde (HCHO), the simplest and most abundant carbonyl in the atmosphere,
contributes to particulate matter (PM) formation via two in-cloud processing pathways. First …

Air pollution reaching hazardous levels in many Chinese cities has been a major concern in
China over the past decades. New policies have been applied to regulate anthropogenic …

Currently, atmospheric sulfate aerosols cannot be predicted reliably by numerical models
because the pathways and kinetics of sulfate formation are unclear. Here, we systematically …

It was recently shown by the CERN CLOUD experiment that biogenic highly oxygenated
molecules (HOMs) form particles under atmospheric conditions in the absence of sulfuric …

A source of missing sulfate production associated with high-level fine-particle pollution in the
megacities of China is believed to stem from the oxidation of a notable fraction of sulfur …

Abstract Atmospheric sulfate (SO 4 2−) aerosols have the capacity to scatter solar radiation,
thus exerting a cooling effect on the climate. It is widely acknowledged that SO 4 2 …

Under certain conditions, secondary organic aerosol (SOA) particles can exist in the
atmosphere in an amorphous solid or semi-solid state. To determine their relevance to …

There are strong indications that particles containing secondary organic aerosol (SOA)
exhibit amorphous solid or semi-solid phase states in the atmosphere. This may facilitate …