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The health and environmental impact of transport is significant because transport burns most of the world's petroleum.This causes illness and deaths from air pollution, including nitrous oxides and particulates, and is a significant cause of climate change through emission of carbon dioxide.
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.
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 than 22.5 MPG, to $7,000 for each vehicle achieving less than 12.5 MPG. Vehicles that achieve a minimum average fuel economy of 22.5 MPG are not subject to the gas guzzler tax.
The new rules, which take effect for model years 2027 through 2032, will avoid up to 1 billion tons of greenhouse gas emissions over the next three decades and provide $13 billion in net benefits ...
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 .
Cars also contribute to pollution of air and water. Though a horse produces more waste, cars are cheaper, thus far more numerous in urban areas than horses ever were. Emissions of harmful gases like carbon monoxide, ozone, carbon dioxide, benzene and particulate matter can damage living organisms and the
Both of these measures not only helped to reduce the amount of harmful emissions being produced by motor vehicles in the US, but they also helped improve health measures. For example, it was found that reducing the amount of lead in gasoline directly correlated with decreasing blood lead content from 1976 to 1980.
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