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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.
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 .
Section 202(a)(1) of the Clean Air Act requires the Administrator of the EPA to establish standards "applicable to the emission of any air pollutant from…new motor vehicles or new motor vehicle engines, which in [her] judgment cause, or contribute to, air pollution which may reasonably be anticipated to endanger public health or welfare" (emphasis added). [3]
For those aged 5–34 in the United States, motor vehicle crashes are the leading cause of death, claiming the lives of 18,266 Americans each year. [45] [failed verification] It is estimated that motor vehicle collisions caused the death of around 60 million people during the 20th century [46] around the same number of World War II casualties ...
Emissions from diesel vehicles are more harmful than those from petrol vehicles. [ 40 ] [ 41 ] [ 42 ] Diesel combustion exhaust is a source of atmospheric soot and fine particles , which is a component of the air pollution implicated in human cancer, [ 43 ] [ 44 ] heart and lung damage, [ 45 ] and mental functioning. [ 46 ]
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