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

Abstract Recently, PM 2.5 (atmospheric fine particulate matter with aerodynamic diameter≤
2.5 μm) have received so much attention that the observations, source appointment and …

Wildfires are becoming more frequent and destructive in a changing climate. Fine particulate
matter, PM2. 5, in wildfire smoke adversely impacts human health. Recent toxicological …

Background: Exposure measurement error is a central concern in air pollution epidemiology.
Given that studies have been using ambient air pollution predictions as proxy exposure …

The COVID-19 outbreak greatly limited human activities and reduced primary emissions
particularly from urban on-road vehicles but coincided with Beijing experiencing “pandemic …

Bushehr, a port along the northern part of the Persian Gulf, has repeatedly encountered dust
storms in recent years but there is not been a comprehensive study on the PM 2.5 contents …

Can mitigating only particle mass, as the existing air quality measures do, ultimately lead to
reduction in ultrafine particles (UFP)? The aim of this study was to provide a broader urban …

Given the growing interest in community air quality monitoring using low-cost sensors, 30
PurpleAir II sensors (12 outdoor and 18 indoor) were deployed in partnership with …

In this study, the positive matrix factorization (PMF) model was used for source
apportionment of ambient PM 2.5 in two locations in the central Tehran from May 2012 …

As the climate warms, wildfire activity is increasing, posing a risk to human health. Studies
have reported on particulate matter (PM) in wildfire smoke, yet the chemicals associated with …