2004 Clean Engine Ozone 
Green Car Congress
DECEMBER 4, 2013
2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. earlier post ), found that emissions of NO 2 and other nitrogen oxides—which can have direct health effects and contribute to the formation of smog—were approximately 61% below the 2010 EPA standard and 99% lower than in 2004 engines.
Green Car Congress
FEBRUARY 11, 2014
Many of the strategies employed to reduce GHG emissions will also work to meet the national ambient air quality standard for ozone in 2032. California’s vehicle GHG standards—authorized by AB 1493 (Pavley) in 2002, first approved in 2004, and extended in 2012—are delivering fuel consumption and CO 2 reductions.
Green Car Congress
SEPTEMBER 26, 2009
Increased leadership from US EPA and the railroads, along with funding to address California’s needs, would signal a clean-air commitment that must be made to protect those who live and work near rail yards. NO x helps create ground-level ozone, or smog. ARB Chairman Mary Nichols.
Green Car Congress
AUGUST 30, 2009
The first such vehicles were introduced by Volkswagen in 2003, and by 2004, they accounted for more than 17% of the Brazilian auto market. Experiments have even shown that the evaporation of the water in the intake manifold acts as a charge air cooling, which improves the volumetric efficiency and thereby the overall efficiency of the engine.
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