Green Car Congress
SEPTEMBER 9, 2011
US EPA Region 9 8-hour ozone trends, 1979-2000. These State Implementation Plans (SIPs) are the roadmaps to meeting the 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS) of 0.08 In 1997, EPA first established the 8-hour ozone standard, which replaced the older 1-hour ozone standard (0.12 Source: EPA.
Green Car Congress
AUGUST 14, 2019
while the carbon intensity of its economy declined by 4.5%. Emissions from transportation sources were relatively constant from 2002 through 2007, declined through 2013, then increased by 9.0 These reductions have occurred while California’s economy has continued to grow. Compared to 2016, California’s GDP grew 3.6% Source: ARB.
Green Car Congress
MAY 18, 2009
In testimony for the US Environmental Protection Agency (EPA) public hearing ( earlier post ) on the proposed endangerment finding for greenhouse gas emissions under the Clean Air Act ( earlier post ), Stanford Professor Mark Jacobson urged the EPA to include black carbon in the finding. F, with about 40% due to ozone. Earlier post.).
Green Car Congress
MARCH 1, 2011
Between 2002 and 2008, PowerTrain imported 79,830 nonroad engines or pieces of equipment into the US that were not covered by a Clean Air Act-required certificate of conformity. They will also offset the excess emissions of hydrocarbons, nitrogen oxides, and carbon monoxide resulting from the sale of the illegal engines and equipment.
Green Car Congress
FEBRUARY 28, 2011
Between 2002 and 2008, PowerTrain imported 79,830 nonroad engines or pieces of equipment into the US that were not covered by a Clean Air Act-required certificate of conformity. They will also offset the excess emissions of hydrocarbons, nitrogen oxides, and carbon monoxide resulting from the sale of the illegal engines and equipment.
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.
Green Car Congress
OCTOBER 20, 2012
Panels show (a) PM 2.5 , (b) elemental carbon (EC), (c) NO x , (d) CO, (e) formaldehyde, and (f) sum of target VOCs. Among the findings were that at idle, B20 increased engine-out and DOC-out emission rates of CO, NMHC, PM 2.5 , elemental carbon (EC), formaldehyde, benzene, and other VOCs (volatile organic compounds) for both the 1.7
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