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Baby Boomers And Gen X Lost Up To 7 IQ Points From Leaded Gas Exposure, Study Finds

Researchers find loss of IQ points due to leaded gasoline exposure had greatest effect on those born between 1951 and 1980, also known as Baby Boomers and Generation X.

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A peer-reviewed study published in the Proceedings of the National Academy of Science journal estimates that some 824,097,690 IQ points were lost by Americans due to exposure to leaded gasoline, predominantly those born between 1951 and 1980.

The study, led by researchers from Florida State University and Duke University, focused on on individuals affected by leaded gasoline before 1996, when lead in gasoline was banned by the federal government.

According to the data, an average of 2.6 IQ points were lost by due to leaded gasoline exposure. Individuals born between 1951 and 1980, largely encompassing the Baby Boomer and Generation X generations, were those most likely to be effected.

IQ loss for Boomers and Xers was IQ loss was estimated to be up to 6 points and, in some cases, more than 7 points.

“The average lead-linked loss in cognitive ability was 2.6 IQ points per person as of 2015,” the study states. “This amounted to a total loss of 824,097,690 IQ points, disproportionately endured by those born between 1951 and 1980.”

The study also notes, “During the peak era of leaded gasoline in the United States, which ran from the late 1960s to the early 1980s, the average blood–lead level (BLL) for the general US population was routinely three to five times higher than the current reference value for clinical concern and case management referral.”

“While children today have much lower BLLs than their parents or grandparents did as children, their lead levels are still multiple times higher than their preindustrial ancestors’ level,” the researchers also note.

In addition to the damage to IQ distributions reportedly caused by exposure leaded gasoline, the additive-infused fuel mixture is also considered to be responsible for harmful levels of pollution and environmental damage.

The study concludes, “The scope of such widespread exposure, particularly from the late 1950s to the early 1980s, suggests the legacy of lead continues to shape the health and wellbeing of the country in ways we do not yet fully understand.”

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Gabriel Keane
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A shy gamer who built multiple social media pages totaling hundreds of thousands of followers since 2016, and was one of the first viral content creators to be deplatformed by Big Tech.



  1. Avatar

    Dano S.

    March 10, 2022 at 8:10 am

    And we are still way ahead of the pack thanks to the “woke” agenda infecting our educational systems and media.

  2. Avatar

    Dumb Bunny

    March 10, 2022 at 9:10 am

    I call this B.S. The biggest decline in IQ is due to Fluoride in the drinking water. The average IQ has dropped 7 points for every 10 years ever since lead was removed from gasoline. They are also putting more fluoride than ever in drinking water to save children’s teeth. Fluoride is a neurotoxin that disintegrates the nerve endings called the synapse
    This causes mental decline, learning disability and delayed reaction to stimulus. Anyone can make a study look like however they want.

    • Avatar

      Dr Jon

      March 11, 2022 at 2:56 pm

      Please cite your sources.
      Fluorine occurs naturally in drinking water in many parts of the US. While excess amounts are toxic, I am not aware of any credible evidence associating levels present in public water supplies to any harms. The maximum level for fluoride in public water supplies is 4 mg/l, and has been unchanged for many years. However, as many people today do not drink water from the tap, it becomes irrelevant. I am unaware of any studies which purport to show that the average IQ of Americans has dropped to 74, which it would have according to your assertion. Lead was first removed from gasoline in 1975, with usage of “ethyl” largely eliminated by 1985 as older automobiles phased out of use.

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    March 10, 2022 at 12:03 pm

    Tell the idiots to stop sniffing gasoline.

  4. Avatar


    March 10, 2022 at 10:44 pm

    Idiots and stupid reporting, who truly believes this nonsense?

    • Avatar

      Dr Jon

      March 11, 2022 at 3:09 pm

      You should look at the original study.

      It is well documented that high serum lead levels cause neurological damage, especially during the stage of neurological development. This is well documented in case studies of humans, and in controlled studies on animals.

      People living in urban areas were exposed to relatively high levels of lead by inhalation, as tetraethyl lead, when burned in a gasoline mixture forms a solid aerosol having extremely small particle size which remains in the air for a significant length of time.

      Public health officials have been measuring levels of Pb in serum (blood) for many years. the data isn’t complicated.

      While other sources of lead, such as ingesting contaminated soil or paint are significant sources of lead exposure for particular individuals, (often with catastrophic effects on cognitive function) the relatively high levels of lead in entire communities which correlate to measured atmospheric lead concentrations in those communities are well known.

      This is the first study I have seen which robustly correlates that with loss of cognitive function, but there is nothing surprising about the results of this study.

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