2004 Ozone Pollution Standards 
Green Car Congress
JULY 22, 2010
Illustration of projected ozone changes in the South Coast region due to climate change in 2050. Areas in orange and red could see ozone concentrations elevated by 9 to 18 parts per billion. Our study reveals that climate change and regional air pollution are intertwined problems. Click to enlarge.
Green Car Congress
DECEMBER 4, 2013
2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. For a number of the most important pollutants, levels were substantially lower than required by regulations. These reductions came while emissions of fine particles were also 92% lower than the 2010 standard 99% lower than 2004 emissions.
Green Car Congress
JULY 11, 2011
systems in areas classified “Serious,” “Severe,” or “Extreme” for nonattainment of the ozone national ambient air quality standard (NAAQS). Vapor emissions from refueling, if allowed to escape, can contribute significantly to ground-level ozone, sometimes called smog, as well as to other types of harmful air pollution.
Green Car Congress
FEBRUARY 11, 2014
The update identifies eight key sectors for ongoing action: Energy; Transportation, fuels, land use and infrastructure; Agriculture; Water; Waste management; Natural lands; Short-Lived Climate Pollutants (such as methane and black carbon); and Green Buildings. Background. Transportation.
Green Car Congress
SEPTEMBER 26, 2009
NO x helps create ground-level ozone, or smog. Both pollutants are particularly harmful to children, the elderly and those who have preexisting health problems. Because of significant mitigation measures put in place over the last two years, risk levels around major rail yards have already been reduced by about 37 percent.
Green Car Congress
JUNE 30, 2013
This partnership was led by EPA’s Design for the Environment (DfE) Program, in the Office of Pollution Prevention and Toxics, and the National Risk Management Research Laboratory, in EPA’s Office of Research and Development. 2 Occupational cancer hazard impact was scaled to 50% in this figure because of the wide range across stages.
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