Many automobile manufacturers also have undertaken development of alternative, less-polluting power sources, such as fuel cells that convert hydrogen (derived from gasoline, natural gas, methanol, or other sources) and oxygen into electricity to power an electric motor, to enhance their competitive positions even in countries without strong requirements that they do so.
To explore the potential impacts of this assumption, we adjust only those counties designated as rural counties [ 47] by 0.69 and assume that 100% of emissions in urban areas are derived from gasoline sources.
In a communication to Senator John Tunney, Richardson was especially critical of the U.S. EPA taking action to remove lead from gasoline based upon health considerations, stating that "there is no firm evidence at this time that lead derived from combusted gasoline is harmful to the health of the general public" (Richardson 1973).
Some of the improved ratings surely derived from retail gasoline prices, which plunged during 2009, because of the shrinking economy, but the advertising also seemed to be having an impact.
Emerging water contaminants derived from unleaded gasoline such as methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE) and tert-amyl methyl ether (TAME), are in need of effective bioremediation technologies for restoring water resources.
Baby Steps: Despite the long-term time horizon for this paradigm shift, the first halting steps toward the hydrogen economy are already being taken in the form of hybrid fuel-cell vehicles that either burn hydrogen directly or generate electricity from hydrogen derived from methanol, gasoline or sodium borohydride.
This is comparable to data derived from measurements of gasoline autocatalyst emissions or airborne particles (<10 μm).
The bonds are special and limited obligations of the state, backed by money derived from the pledged gasoline and fuel taxes.
Benzene, a product derived from natural gas, can be further processed to produce gasoline for use in cars and other vehicles.
They were already expanding to meet demand for liquefied natural gas and ethylene, a building block for plastics derived from natural gas, and now they have cheaper crude to process for gasoline.
According to a 2003 study by MIT's Laboratory for Energy and the Environment, a study that remains one of the most comprehensive projections for propulsion technologies, diesel hybrids should outperform nearly all other propulsion technologies through 2020 – including fuel-cell cars that run on hydrogen derived onboard from gasoline.
