Green Car Congress
SEPTEMBER 15, 2020
Under the proposed settlement, lodged with the US District Court for the District of Columbia, Daimler will recall and repair the emissions systems in Mercedes-Benz diesel vehicles sold in the United States between 2009 and 2016 and pay $875 million in civil penalties and roughly $70.3 million in other penalties.
Green Car Congress
MAY 1, 2018
They found that levels of pollutants that can contribute to the formation of ground-level ozone, or smog, have failed to continue a fairly steady decline as estimated by the US Environmental Protection Agency. These results show that meeting future air quality standards for ozone pollution will be more challenging than previously thought.
Green Car Congress
APRIL 19, 2013
Volatile organic compounds (VOC), which include hydrocarbons, are major air pollutants as well as precursors of harmful compounds such as tropospheric ozone and secondary organic aerosols. They therefore concluded that gasoline engines are probably the main source of volatile hydrocarbons in both cities.
Green Car Congress
JUNE 27, 2014
After ten years in orbit, the Ozone Monitoring Instrument (OMI) on NASA’s Aura satellite has been in orbit sufficiently long to show that people in major US cities are breathing less nitrogen dioxide. The gas is produced primarily during the combustion of gasoline in vehicle engines and coal in power plants.
Green Car Congress
JULY 18, 2010
A 2009 evaluation of geoengineering techniques by the Royal Society concluded that stratospheric aerosols could be highly effective and affordable, although there are questions over adverse effects. From: Geoengineering the Climate (2009) Click to enlarge. Earlier post.). Evaluating candidate particles.
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
JULY 4, 2010
Researchers at North Carolina State University are developing an ozone-based pre-treatment technique (ozonolysis) to release sugars from the energy grass miscanthus for production into renewable fuels or chemicals with minimal generation of chemical waste streams and degradation of the carbohydrate components. García-Cubero et al.
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