when did they take lead out of gas
Tetraethyllead By 2011, the United Nations announced that it had been successful in phasing out leaded gasoline worldwide. "Ridding the world of leaded petrol, with the United Nations leading the effort in developing countries, has resulted in $2.4 trillion in annual benefits, 1.2 million fewer premature deaths, higher overall intelligence and 58 million fewer crimes," the United Nations Environmental Programme said.[73][74] The announcement was slightly premature, as a few countries still have leaded gasoline for sale as of 2013 (see above).
Lead poisoning Lead poisoning is a type of metal poisoning caused by lead in the body.[2] The brain is the most sensitive.[2] Symptoms may include abdominal pain, constipation, headaches, irritability, memory problems, inability to have children, and tingling in the hands and feet.[1] It causes almost 10% of intellectual disability of otherwise unknown cause and can result in behavioral problems.[2] Some of the effects are permanent.[2] In severe cases anemia, seizures, coma, or death may occur.[1][2]