Search results
Results from the WOW.Com Content Network
The major source of lead exposure during the 20th century was leaded gasoline. Proponents of the lead–crime hypothesis argue that the removal of lead additives from motor fuel, and the consequent decline in children's lead exposure, explains the fall in crime rates in the United States beginning in the 1990s. [4]
Use of leaded gas increased after World War II until it proved damaging to catalytic converters, which became required in the 1970s. Some of lead’s hazards were known long before it was banned ...
In some parts of South America, Asia, and the Middle East, leaded gasoline is still in use. Leaded gasoline was phased out in sub-Saharan Africa, starting 1 January 2006. A growing number of countries have drawn up plans to ban leaded gasoline in the near future. Some experts speculate that leaded petrol was behind a global crime wave in the ...
A lead compound called tetraethyl lead was marketed under the brand name Ethyl and became a commercial success. Algeria was the last nation to halt the use of leaded gas in 2021.
Leaded gasoline was withdrawn entirely from the European Union market on 1 January 2000, although it had been banned earlier in most member states. Other countries also phased out TEL. [121] India banned leaded petrol in March 2000. [70] By 2011, the United Nations announced that it had been successful in phasing out leaded gasoline worldwide.
For premium support please call: 800-290-4726 more ways to reach us
Thomas Midgley Jr. (May 18, 1889 – November 2, 1944) was an American mechanical and chemical engineer.He played a major role in developing leaded gasoline (tetraethyl lead) and some of the first chlorofluorocarbons (CFCs), better known in the United States by the brand name Freon; both products were later banned from common use due to their harmful impact on human health and the environment.
Lead gas peaked from the mid-1960s through the mid-1970s, and children born during that era would later develop some of the highest rates of mental health symptoms, the study said.