Green Car Congress

MARCH 11, 2013

Researchers from Rice University and the US Environmental Protection Agency (EPA) report in a paper in the journal Atmospheric Chemistry that particularly in Northeastern cities, ozone levels dropped even beyond what was anticipated by cutting emissions of NO x from 2002 to 2006. from 2002 to 2006. This is good news.

Ozone 218

Ozone EPA 2002 2006 218

Green Car Congress

AUGUST 9, 2012

A scatter plot of CO, as a tracer for pollution, versus CO 2 , as a tracer for the amount of combustion, for 2002 and 2010. Even though the CO 2 enhancements over background were comparable in the two years, about 25 ppm in 2002 and 35 ppm in 2010, the ?CO/?CO2 CO2 ratio for this flight track segment decreased from 24.5

Los Angeles 285

Los Angeles Gasoline Ozone 2002 285

Green Car Congress

OCTOBER 20, 2012

A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 L/2002 calibration and 6.4 Unregulated pollutants also include ozone precursors and bioaccumulative and toxic compounds. For the study, they used a GM 2002 1.7

Pollution 231

Pollution Diesel Emissions Engine 231

Green Car Congress

AUGUST 15, 2019

Long-term exposure to ambient air pollutants, especially O 3 (ozone), is significantly associated with increasing emphysema, according to a new study led by the University of Washington, Columbia University and the University at Buffalo. The annual averages of ozone levels in study areas were between about 10 and 25 ppb.

Pollution 223

Pollution Ozone Washington Universal 223

Green Car Congress

MAY 18, 2009

Jacobson first showed in 2000 that black carbon was the second-leading cause of global warming after carbon dioxide in terms of radiative forcing and, in 2002, that its control was the most effective method of slowing warming. F, with about 40% due to ozone. Earlier post.). C increased Arctic warming from 1890 to 2007. Earlier post.).

Carbon 150

Carbon EPA Ozone Pollution 150