‘Exposure to leaded gasoline in childhood may have negatively impacted intelligence and job status across America, according to a recent study. Researchers examined blood samples from more than 500 participants who grew up in the era of leaded gasoline. Data show that participants with more than 10 micrograms of lead per deciliter of blood at age 11 had IQs that were 4.25 points lower than less-exposed individuals at age 38. The study also showed that each 5-microgram increase in blood lead levels coincide with up to 1.5 IQ point loss.
“This suggests at the very least that individuals don’t fully recover from lead-related cognitive injuries received in childhood. It also suggests that lead exerts a downward pull on an individual’s cognitive abilities over time regardless of where they start out in life,” said lead study author Aaron Reuben, as reported in Reuters.com.’
Read more: Exposure to leaded gasoline may have led to widespread loss of intelligence across America, reveals study

‘Exposure to leaded gasoline in childhood may have negatively impacted intelligence and job status across America, according to a recent study. Researchers examined blood samples from more than 500 participants who grew up in the era of leaded gasoline. Data show that participants with more than 10 micrograms of lead per deciliter of blood at age 11 had IQs that were 4.25 points lower than less-exposed individuals at age 38. The study also showed that each 5-microgram increase in blood lead levels coincide with up to 1.5 IQ point loss.
“This suggests at the very least that individuals don’t fully recover from lead-related cognitive injuries received in childhood. It also suggests that lead exerts a downward pull on an individual’s cognitive abilities over time regardless of where they start out in life,” said lead study author Aaron Reuben, as reported in Reuters.com.’
Read more: Exposure to leaded gasoline may have led to widespread loss of intelligence across America, reveals study