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Compressed Natural Gas (GNC)

GNC Fueling Located Map  | Information From U.S. DOE  | Natural Gas Fueling Station Opens in Richmond  |  GMC Waste Haulers Natural gas is a mixture of hydrocarbons, primarily methane which is a relatively unreactive hydrocarbon. Natural gas delivered through the pipeline also contains ethane and propane (hydrocarbons) and other gases (i.e., nitrogen, helium, carbon dioxide, hydrogen sulfide, and water vapor). Natural gas can be produced from gas wells or as a result of crude oil production. Because of the gaseous nature of natural gas, it must be stored onboard a vehicle in either a compressed gaseous state (CNG) or a in a liquefied state (LNG). End users for natural gas include all economic sectors: residential, commercial, industrial, and transportation.

Natural gas is one of the cleanest burning alternative fuels available and offers a number of advantages over gasoline. In light-duty applications, air exhaust emissions from natural gas vehicles are much lower than those from gasoline-powered vehicles. In addition, smog-producing gases, such as carbon monoxide and nitrogen oxides, are reduced by more than 90% and 60%, respectively and carbon dioxide, a greenhouse gas, is reduced by 30%-40%.

For heavy-duty and medium-duty applications, natural gas engines have demonstrated more than 90% reduction of CO and particulate matter and more than 50% reduction of NOx relative to commercial diesel engines.

For more information about CNG vehicle use, please visit the Virginia Clean Cities web page.