Receptor models infer contributions from particulate matter (PM) source types using
multivariate measurements of particle chemical and physical properties. Receptor models …

Vehicle emissions are a major contributor to air pollution in cities and have serious health
impacts to their inhabitants. On-road remote sensing is an effective and economic tool to …

A study design procedure was developed and demonstrated for the deployment of portable
onboard tailpipe emissions measurement systems for selected highway vehicles fueled by …

A fuel-based approach is used to estimate long-term trends (1990–2010) in carbon
monoxide (CO) emissions from motor vehicles. Non-methane hydrocarbons (NMHC) are …

A multiyear, on-road emission measurement program carried out in the cities of Chicago,
Illinois; Denver, Colorado; Los Angeles (LA), California; and Phoenix, Arizona shows large …

Decreases in ozone (O3) observed in California's South Coast Air Basin (SoCAB) over the
past five decades have resulted from decreases in local emissions of its precursors, nitrogen …

Repeated, fuel-specific, emission measurements in Denver (2005/2013), Los Angeles
(LA)(2008/2013), and Tulsa (2005/2013) provide long-term trends in on-road reactive …

Pollutant concentrations in the exhaust plumes of individual diesel trucks were measured at
high time resolution in a highway tunnel in Oakland, CA, during July 2010. Emission factors …

A study design was developed and demonstrated for deployment of a portable emission
measurement system (PEMS) for excavators. Excavators are among the most commonly …

International Vehicle Emissions (IVE) model funded by US Environmental Protection Agency
(USEPA) is designed to estimate emissions from motor vehicles in develo** countries. In …