Green Car Congress

APRIL 29, 2013

In its recently released Inventory of US Greenhouse Gas Emissions and Sinks: 1990 – 2011 ( earlier post ), the US Environmental Protection Agency (EPA) reported that methane (CH 4 ) emissions from the field production of natural gas have declined by 36% from 2007 to 2011 (from 83.1 Tg or million metric tons CO 2 equivalent.)

2007 285

2007 2011 EPA Gas 285

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.)

Exhaust 150

Exhaust Diesel Engine 2007 150

Green Car Congress

JULY 25, 2009

Exposure to ozone at levels currently deemed safe by the NAAQS clean air standards can have a significant and negative effect on lung function, according to researchers at the University of California, Davis. The previous primary and secondary standards were identical 8-hour standards, set at 0.08 Earlier post.).

Ozone 186

Ozone Standards Clean Cleaning 186

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.

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Diesel Emissions 2004 San Antonio 296

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. The emission reductions were to be beyond existing US EPA regulations and ARB regulations and agreements.

Diesel 170

Diesel California Emissions 2007 170

Green Car Congress

AUGUST 30, 2009

80.27, “high ozone season” means the period from June 1 to September 15 of any calendar year and “regulatory control period” means the period from May 1 to September 15 of any calendar year. In February, 2009, the US EPA granted Renergie, Inc. Current Legal Requirement for Use of Anhydrous Ethanol in the United States. 40 CFR § 80.27

Transportation 317

Transportation Fuel Renewable Gasoline-Electric 317

Green Car Congress

OCTOBER 20, 2012

They found that the level of emissions of regulated and unregulated pollutants in diesel exhaust depends on fuel, load, engine calibration, and exhaust aftertreatment technology. Unregulated pollutants also include ozone precursors and bioaccumulative and toxic compounds. L) and medium-duty (6.4 L/2002 calibration and 6.4

Pollution 231

Pollution Diesel Emissions Engine 231