2012 Engine Exhaust Ozone 
Green Car Congress
JANUARY 27, 2015
The first study to conduct a comprehensive evaluation of lifetime exposure to new technology diesel exhaust (NTDE)—i.e., exhaust from heavy-duty diesel engines meeting EPA 2007 and later emissions requirements—has found no evidence of carcinogenic lung tumors. Earlier post.) Earlier post.)
Blink Charging
NOVEMBER 28, 2023
Vehicle fleets across the United States are transitioning from internal combustion engine (ICE) to electric vehicles, and that includes school bus fleets. Many school districts use diesel buses for fuel efficiency, but even diesel exhaust was classified as a known carcinogen to humans in 2012.
Green Car Congress
OCTOBER 17, 2012
Atmospheric chemists at the Harvard School of Engineering and Applied Sciences (SEAS) have found that the phase of secondary organic materials (SOM) in the atmosphere—solid, semisolid, or liquid—can effect their chemical reactivity (chemical aging) in the atmosphere. Image courtesy of Kuwata Mikinori.) Click to enlarge.
Green Car Congress
SEPTEMBER 14, 2015
The National Academies have released a third review of the 21 st Century Truck Partnership (21CTP); the review follows the Phase 1 and Phase 2 reviews by the National Research Council in 2008 and 2012 ( earlier post ) and assesses the progress the partnership has made. A pathway to achieve 55% is being developed.
Green Car Congress
SEPTEMBER 11, 2013
Recently, researchers have produced a new zeolite that is surprisingly stable and makes very little nitrous oxide from nitric oxide, a chemical that depletes ozone. 2012) Cu-SSZ-13 Catalysts for the Selective Catalytic Reduction of NO x with NH 3 : Catalyst Characterization and Reaction Mechanisms (12 AIChE meeting). Feng Gao et al.
Green Car Congress
SEPTEMBER 26, 2009
The top set of recommendations call for: Replacing existing switch and medium horsepower locomotives with cleaner locomotives (2010-2013); Retrofitting switch and medium horsepower locomotive with particulate matter and oxides of nitrogen (NO x ) after-treatment devices (2012-2016); and. NO x helps create ground-level ozone, or smog.
Green Car Congress
OCTOBER 20, 2012
L engines at idle. L) diesel engines at idle and load, using a biodiesel blend (B20) and conventional ultralow sulfur diesel (ULSD) fuel. L) diesel engines at idle and load, using a biodiesel blend (B20) and conventional ultralow sulfur diesel (ULSD) fuel. L/2004 calibration engines. Emission rates for the 1.7
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