Evaluation of Mobile Monitoring Technologies for Heavy-duty Diesel-powered Vehicle Emissions
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چکیده
منابع مشابه
Quantifying on-road emissions from gasoline-powered motor vehicles: accounting for the presence of medium- and heavy-duty diesel trucks.
Vehicle emissions of nitrogen oxides (NOx), carbon monoxide (CO), fine particulate matter (PM2.5), organic aerosol (OA), and black carbon (BC) were measured at the Caldecott tunnel in the San Francisco Bay Area. Measurements were made in bore 2 of the tunnel, where light-duty (LD) vehicles accounted for >99% of total traffic and heavy-duty trucks were not allowed. Prior emission studies conduct...
متن کاملOn-road measurement of "ne particle and nitrogen oxide emissions from light- and heavy-duty motor vehicles
An updated assessment of "ne particle emissions from lightand heavy-duty vehicles is needed due to recent changes to the composition of gasoline and diesel fuel, more stringent emission standards applying to new vehicles sold in the 1990s, and the adoption of a new ambient air quality standard for "ne particulate matter (PM 2.5 ) in the United States. This paper reports the measurement of emiss...
متن کامل“Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts”
The introduction and development of catalytic control for exhaust gas emissions from vehicles has been one of the major technical achievements over the last four decades. A huge number of cars were manufactured during this time that provided society with a high degree of personal mobility and without the continuous development of emissions control technologies the atmospheric pollution derived ...
متن کاملHEALTH EFFECTS 11) TITLE: Mechanisms of Cardiopulmonary Injury Caused by Mobile Source- Generated Fine and Ultrafine Particles
PROBLEM: There are strong associations between exposures to motor vehicle-derived particles and cardiopulmonary morbidity and mortality but there have been few studies that realistically examined possible differences in the effects of gasoline versus diesel-powered engine emissions. The Caldecott Tunnel, which has segregated traffic patterns, offers an opportunity to test the hypothesis that th...
متن کاملA Fuel-Based Inventory for Heavy-Duty Diesel Truck Emissions
A fuel-based method for estimating heavy-duty diesel truck emissions is described. In this method, emission factors are normalized to fuel consumption; vehicle activity is measured by the amount of diesel fuel consumed. For the San Francisco Bay Area during summer 1996, on-road heavy-duty diesel trucks were estimated at the upper bound to emit 110 × 103 kg/day of nitrogen oxides (NOx) and 3.7 ×...
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تاریخ انتشار 2000