of one ampere in it produces a voltage of one volt between its ends. Technically, any compound that has the potential to produce adverse health effects is considered a toxic substance. What is mtbe used for? Back to top O Ohms The unit of resistance (and of impedance) in the international system of units. EPA publishes allowable emission levels and vehicle certification standards in the Code of Federal Regulations. It also conducts the electrons back from the external circuit to the catalyst, where they can recombine with the hydrogen ions and oxygen to form water. Mtbe, which has been around since the late 1970s, was first used to boost octane in gasoline as lead was phased out as an anti-engine knock additive. Proton Exchange Membrane Fuel Cell (pemfc or pefc) Also called polymer electrolyte membrane fuel cell. Cathode One of two electrodes in a fuel cell or battery. Learn how a fuel cell works. Calculators, scientific Criteria Documents, related Documents, user Survey: Canadian Environmental Quality Guidelines.
Electrical Efficiency The ratio of useful electrical real power output to the total electrical power input. An electric current that reverses its direction of flow from positive to negative at regular intervals, typically 60 times per second. Environmental Protection Agency (EPA) A government agency, established in 1970, responsible for the protection of the environment and public health. Additional information about Fuel Cells. Biochemical Conversion The use of enzymes and catalysts to change biological substances chemically to produce energy products. Particulate Matter (PM) Unburned fuel particles that form smoke or soot and stock to lung tissue when inhaled. The Department includes the Office of Transportation Technologies, the umbrella of the Office of Alternative Fuels and others. M N, o P, q R, s T, u V, w X,. Corrosion Deteriorative loss of a metal as a result of environmental reactions.
Reformulated Gasoline (RFG) Gasolines that have had their compositions and/or characteristics altered to reduce vehicular emissions of pollutants, particularly pursuant to the EPA regulations under the CAA. At room temperature, it is a colorless liquid that will volatilize into the air, making it a volatile organic chemical (VOC). Oxidized iron, manganese sulfides.5 Micron particulate reduction, volatile organic compounds (VOCs total trihalomethanes (tthms). Hydrogen Fuel Cell A fuel cell powered by hydrogen Back to top I Impurities Undesirable foreign material(s) in a pure substance or mixture.