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Soot and other particles from diesel engines worsen the particulate matter pollution in the air and are harmful to health. [8] New particulate filters can capture from 30% to greater than 95% of the harmful soot. [9] With an optimal diesel particulate filter (DPF), soot emissions may be decreased to 0.001 g/km or less. [10]
The statutory NO x limit for diesel passenger cars Euro 5 is 180 mg NO x /km. The Porsche Panamera equipped with the VW-EA897 engine, made by Audi, exhibited an 8.3-fold limit violation with an average NO x emissions of 1,498 mg/km, according to DUH. According to DUH data, the measurements were made at outside temperatures between +10 and +14 °C.
Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue [3]) is a liquid used to reduce the amount of air pollution created by a diesel engine. Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water .
Catalytic converters remove only 20–40% of PM so particulates are cleaned up by a soot trap or diesel particulate filter (DPF). In the U.S., all on-road light, medium, and heavy-duty diesel-powered vehicles built after 1 January 2007, are subject to diesel particulate emission limits, and so are equipped with a 2-way catalytic converter and a ...
The National Clean Diesel Campaign focuses on the health of Americans due to the exhaust emissions from diesel engines; specifically nitrogen oxides and particulate matter. It includes regulations for new diesel engines, voluntary programs for the existing diesel fleet, diesel emission reduction technologies and strategies, and current ...
Researchers at the University of Colorado Anschutz Medical Campus received up to $46 million in a grant to help develop an innovative treatment to cure blindness.
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Because diesel fuel and engine oil both contain nonburnable (i.e. metallic and mineral) impurities, the incineration of soot (PM) in the DPF leaves behind a residue known as ash. For this reason, after repeated regeneration events, eventually the DPF must either be physically removed and cleaned in a special external process, or it must be ...
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