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- Tetraethyl lead (TEL) was used as a fuel additive in gasoline for many years. The use of TEL declined markedly from 1975 to 1985, and since 1995 no leaded gasoline has been available for use in passenger automobiles in the United States1. The use of leaded gasoline in cars was banned in Canada in 1990 and in the European Union in 200212. TEL was banned in Europe and North America in 2000 following evidence that it causes damage to the brain and nervous system, particularly in children2. The ban has been linked to a subsequent fall in violent crime in many countries2.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Use of TEL declined markedly from 1975 to 1985, and since 1995 no leaded gasoline has been available for use in passenger automobiles in the United States. (The use of TEL continued for many years in aviation gasoline and racing fuel, however.) The use of leaded gasoline in cars was banned in Canada in 1990 and in the European Union in 2002.www.britannica.com/science/tetraethyl-leadTEL was banned in Europe and North America in 2000 following evidence that it causes damage to the brain and nervous system, particularly in children. The ban has been linked to a subsequent fall in violent crime in many countries because people’s brains are no longer being damaged by lead pollution in the air.www.independent.co.uk/climate-change/news/lead… - See more
See all on WikipediaTetraethyllead - Wikipedia
Effective 1 January 1996, the Clean Air Act banned the sale of the small amount of leaded fuel that was still available in some parts of the country for use in on-road vehicles. EPA said fuel containing lead may continue to be sold for off-road uses, including aircraft, racing cars, farm equipment, and marine engines. See more
TEL is produced by reacting chloroethane with a sodium–lead alloy.
The product is recovered by steam distillation, leaving a … See moreTEL was extensively used as a gasoline additive beginning in the 1920s, wherein it served as an effective antiknock agent and reduced exhaust valve and valve seat wear. Concerns were … See more
In 1853, German chemist Karl Jacob Löwig (1803–1890) first prepared what he claimed was Pb2(C2H5)3 from ethyl iodide and an alloy of lead and sodium. In 1859, English chemist See more
A noteworthy feature of TEL is the weakness of its four C–Pb bonds. At the temperatures found in internal combustion engines, … See more
6 mL of tetraethyllead is enough to induce severe lead poisoning. The hazards of TEL content are heightened due to the compound's volatility and high lipophilicity, enabling it to easily cross the blood–brain barrier.
Early symptoms of … See moreWikipedia text under CC-BY-SA license End Of Leaded Gasoline: World Has Stopped Using …
Aug 30, 2021 · In 1921, researchers at General Motors discovered that adding a compound called tetraethyl lead to gasoline could improve engine performance.
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Tetraethyl lead (TEL) | Definition, History, Uses,
Tetraethyl lead, organometallic compound containing the toxic metal lead that for much of the 20th century was the chief antiknock agent for automotive gasoline. Beginning in the 1970s, ‘leaded gasoline’ was phased out on account of its …
A century of tragedy: How the car and gas industry …
Dec 8, 2021 · One called lead a serious menace to public health, and another called concentrated tetraethyl lead a “malicious and creeping” poison. General Motors and Standard Oil waved the warnings aside ...
Why did the world use leaded gas—and why did it …
Sep 1, 2021 · Leaded gasoline was added to fuel in 1922 to improve engine performance, but it was also poisonous to humans. The U.S. banned it in 1996, but some countries continued to use it until 2021.
Why did we use leaded petrol for so long? - BBC
Aug 27, 2017 · Why did the petrol companies push tetraethyl lead instead of ethyl alcohol? Researchers who have studied the decision remain puzzled.
Inside the 20-year campaign to rid the world of leaded …
Aug 30, 2021 · For the first time since 1923, no driver on the planet will be legally able to fill their tank with lead-infused petrol. “The successful enforcement of the ban on leaded petrol is a huge milestone for global health and our …
The end of a 'toxic era': The UN has completely …
Aug 31, 2021 · According to WHO research by Phillip J Landrigan, lead is toxic to multiple organ systems. Exposure is especially dangerous for pregnant women and their unborn babies - the nervous...
Era of leaded petrol over, eliminating a major threat to …
Aug 30, 2021 · Since 1922, the use of tetraethyllead as a petrol additive to improve engine performance has been a catastrophe for the environment and public health. By the 1970s, almost all petrol produced around the world …
The History of the Elimination of Leaded Gasoline
Apr 14, 2022 · Learn how Japan became the first country to eliminate leaded gasoline from its vehicles, following a health scare and a technological shift. Compare the timeline and reasons …
Ethyl leaded gasoline | Environmental history
Abstract: The author describes the controversy about the use of tetraethyl lead (TEL) as a gasoline additive. Early warnings were ignored by industry, and as leaded gasoline became more profitable, scientists willing to support industry …
A century of tragedy: Leaded gasoline | Environmental history
Dec 9, 2021 · The new fuel was tetraethyl lead. With vast profits in sight – and very few public health regulations at the time – General Motors Co. rushed gasoline diluted with tetraethyl lead …
Tetraethyllead - an overview | ScienceDirect Topics
Because of growing evidence of neurotoxic effects at low dose, TEL was banned from gasoline in the United States, beginning in 1978. Air lead levels and blood lead levels declined …
How the world eliminated lead from gasoline - Our World in Data
Jan 11, 2022 · Leaded gasoline is now banned for use in road vehicles in every country. It is still used in some smaller planes in the aviation industry. This campaign was part of its Partnership …
Leaded petrol is gone – but lead pollution may linger for a very …
Sep 3, 2021 · Since 1999, using lead in fuel has been banned. Phasing out lead has proven more difficult in lower income countries, particularly Algeria – the final hold-out. But as of July 2021, …
Leaded Gas Was a Known Poison the Day It Was Invented
Dec 9, 2016 · The answer goes back to this day in 1921, when General Motors engineer named Thomas Midgley Jr. told his boss Charles Kettering that he’d discovered a new additive which …
Why did we use leaded petrol for so long? - BBC News
Aug 27, 2017 · Why did the petrol companies push tetraethyl lead instead of ethyl alcohol? Researchers who have studied the decision remain puzzled.
Chemical safety: Lead poisoning - World Health Organization …
Sep 27, 2024 · Leaded gasoline was an important source of exposure, but all countries have now banned its use. The continued use of tetraethyl lead in some aviation fuels exposes …
Leaded gasoline is finally gone – but its toxic legacy lingers
Aug 31, 2021 · In 1921, General Motors engineers discovered that tetraethyl lead could make internal combustion engines run more smoothly and reduce engine knock. For the next 100 …
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