We present a comprehensive review of published results from the last 30 years regarding
the sources and atmospheric characteristics of particles and ozone in the Metropolitan Area …

About half of the world's population now lives in urban areas because of the opportunity for a
better quality of life. Many of these urban centers are expanding rapidly, leading to the …

Over the last 50 years the developing world, much of which is located in (sub) tropical
regions, has seen a dramatic growth of its urban population associated with serious …

In urban areas of Brazil, vehicle emissions are the principal source of fine particulate matter
(PM 2.5). The World Health Organization air quality guidelines state that the annual mean …

Ambient respirable particles (PM≤ 10μm, denoted by PM10) were characterized with
respect to 20 elements, 16 polycyclic aromatic hydrocarbons (PAHs), elemental and organic …

This study involved a seasonal exposure assessment in a hospital environment using
several air quality indicators including carbon monoxide (CO), carbon dioxide (CO 2) …

The presence and release of nanoparticles into the environment has important implications
for human health and the environment. This article highlights and describes techniques that …

Heavy metal concentrations in suspended particulate matter (SPM) were investigated for
their distribution and source in the atmosphere of coastal industrial town, Mithapur, Gujarat …

The seasonal evolution of daily and hourly values of global and diffuse solar radiation at the
surface are compared for the cities of São Paulo and Botucatu, both located in Southeast …

It is of great interest to evaluate if there is a relationship between possible sources and trace
elements using biomonitoring techniques. In this study, tree bark samples of 171 trees were …