Colorado Gasoline Pollution Universal 
Green Car Congress
FEBRUARY 16, 2018
The green symbol and dashed arrow illustrate the large reductions in tailpipe VOC emission factors as precatalyst on-road gasoline vehicles were replaced by present-day vehicle fleets. Even so, lotions, paints and other products contribute about as much to air pollution as does the transportation sector. McDonald et al.
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. The magnitude of the drop in VOC levels was surprising, even to researchers who expected some kind of decrease resulting from California’s longtime efforts to control vehicle pollution. ppbv/ppmv to 10.7
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. We were surprised by the discrepancy between the estimates of emissions and the actual measurements of pollutants in the atmosphere.
Green Car Congress
JULY 28, 2012
Ethanol is emitted to the atmosphere by both natural and anthropogenic processes; examples of the latter include industrial processes, biomass combustion and use as a biofuel mixed with gasoline. Acetaldehyde is classified as a hazardous air pollutants (HAP) regulated under Title III of the Clean Air Act Amendments. Click to enlarge.
Green Car Congress
NOVEMBER 17, 2009
A University of Utah engineer has developed an inexpensive new method to remove oil sheen by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil so it can be removed by sand filters. Emerging contaminants, such as wastewater polluted with medications and personal care products.
Green Car Congress
SEPTEMBER 7, 2009
Authors of the study included: Christopher Kennedy, University of Toronto. Julia Steinberger, University of Klagenfurt. Barrie Gasson, University of Cape Town. Yvonne Hansen, University of Cape Town. Timothy Hillman, University of Colorado. Miroslav Havránek, Charles University Environment Center.
Green Car Congress
JULY 1, 2015
the “carbon footprint” of electricity production and use), according to a new study by researchers at Carnegie Mellon University. Green indicates that the Nissan Leaf is lower emitting than the gasoline vehicle (Toyota Prius Hybrid or sales-weighted ICEV), while red means that the opposite holds. Credit: ACS, Tamayao et al.
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