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Exhaust gas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline (petrol), diesel fuel, fuel oil, biodiesel blends, [1] or coal. According to the type of engine, it is discharged into the atmosphere through an exhaust pipe , flue gas stack , or propelling nozzle .
The tax does not apply to minivans, sport utility vehicles, or pick-up trucks, as these made up a small portion of the US fleet when the tax was established in 1978. [17] Manufacturers pay a level of tax based upon the average fuel economy for each particular vehicle produced, ranging from $1,000 for vehicles achieving at least 21.5 but less ...
Pollutants are classified as primary or secondary. Primary pollutants are produced directly by a source and remain in the same chemical form after they have been emitted into the atmosphere. Examples include ash from a volcanic eruption, carbon monoxide gas from motor vehicle exhausts, and sulfur dioxide released from factories.
This can release nitrogen oxide, carbon monoxide, sulphur dioxide, or hydrocarbons into the air. Liquid pollution can come from railways contributing to a runoff into water sources, like groundwater or rivers and can result from spillage of fuels like oil into water supplies or onto land or discharge of human waste. [30]
Gasoline cars with less than two passengers produce more carbon dioxide per passenger kilometer than any other form of land transport. [19] The changing speed of a vehicle is a factor when considering the measurement of greenhouse gas emissions. Traffic congestion can be dangerous because of its effects on society.
The Environmental Protection Agency on Friday set strict emissions standards for heavy-duty trucks, buses and other large vehicles, an action that officials said will help clean up some of the ...
Vehicle emissions control is the study of reducing the emissions produced by motor vehicles, especially internal combustion engines.The primary emissions studied include hydrocarbons, volatile organic compounds, carbon monoxide, carbon dioxide, nitrogen oxides, particulate matter, and sulfur oxides.
The EPA rule applies to model years 2027 to 2032 and will significantly reduce emissions of planet-warming greenhouse gases, as well as other air pollution such as nitrogen oxides and particulate ...