These advanced control technologies have been proven to effectively reduce these emissions but have some unwanted effects such as increasing the NO/NO ratio in diesel exhaust which has the potential to increase ground level ozone. Ammonia (NH) was found to be an unexpected product from one of ...
Licensed Colorado Diesel Emissions testing at True Speed. Located inside Exhaust Pros Northglenn 11450 Huron St. Northglenn, CO 80234. Call to schedule.
The problem of reducing harmful emissions generated by motor vehicles is one of the key problems encountered by their manufacturers. Specifically, in the last decade increasingly stringent requirements regarding the emissions of motor vehicles depending on the usage conditions have been imposed on the le...
The introduction of particulate and oxides of nitrogen (NOx) after-treatment controls on heavy-duty vehicles has spurred the need for fleet emissions data to monitor their reliability and effectiveness. The University of Denver has devel... GA Bishop,R Hottor-Raguindin,DH Stedman,... - 《Envi...
probation and ordered to pay a $37,500 fine. A separate $12,500 payment was ordered as well. That money will go toward repairs of emissions control systems on vehicles "owned by low-income drivers who cannot afford to bring their vehicles into compliance," as stated in the press release....
As the EPA increased its regulations on ever-cleaner diesel emissions it seemed the SD70ACe and its 710 prime mover were safe as the engine met later Tier III standards. However, when Tier IV standards went into effect on January 1, 2015 Caterpillar/Progress Rail was unable to make the pri...
New Exposure System To Evaluate the Toxicity of (Scooter) Exhaust Emissions in Lung Cells in Vitro expose a characterized triple cell coculture model of the human epithelial airway barrier, to freshly produced and characterized total scooter exhaust emissions... LORETTA MUELLER,PIERRE COMTE,JAN CZ...
Diesel power-trains have been touted by many, especially the Europeans, as the answer to fuel-efficiency needs, but there are fuel-quality, emissions, and consumer-perception hurdles to overcome in the U.S. However, the automotive industry's engineering minds keep working on overcoming these ...
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During 1996 and 1997, a number of light-and heavy-duty diesel vehicles were recruited in the Denver metropolitan area and subjected to emissions testing, principally for the purposes of assessing on-road particulate emissions. Little if any comparable data had been collected at altitude, ...