Urban air pollution represents one of the greatest environmental challenges facing mankind
in the 21st century. 1, 2 Noticeably, many develo** countries, such as China and India …

Particulate matter (PM) is a complex, heterogeneous mixture that changes in time and
space. It encompasses many different chemical components and physical characteristics …

Growing evidence suggests that fine particulate matter (PM2. 5) likely increases the risks of
dementia, yet little is known about the relative contributions of different constituents. Here …

Background: Fine particulate matter (PM2. 5) air pollution exposure has been identified as a
global health threat. However, the types and sources of particles most responsible are not …

Secondary organic aerosol (SOA) accounts for a significant fraction of ambient tropospheric
aerosol and a detailed knowledge of the formation, properties and transformation of SOA is …

ContextAssociations have been found between day-to-day particulate air pollution and
increased risk of various adverse health outcomes, including cardiopulmonary mortality …

Background: Growing evidence indicates that toxicity of fine particulate matter≤ 2.5 μm in
diameter (PM2. 5) differs by chemical component. Exposure to components may differ by …

The objectives of this study were to determine whether differences in the size and
composition of coarse (2.5-10 micro m), fine (< 2.5 microm), and ultrafine (< 0.1 microm) …

Background: Although ambient fine particulate matter (PM2. 5; particulate matter≤ 2.5 µm in
aerodynamic diameter) has been linked to adverse human health effects, the chemical …

Background Epidemiological, controlled human exposure, and toxicological studies have
demonstrated a variety of health effects in response to particulate matter (PM) exposure with …