Leaded gas ban worked.
The EPA cracked down on lead-based products—including lead paint and leaded gasoline—in the 1970s because of its toxic effects on human health.
A scientific analysis of human hair samples, over the course of 100 years, showed a 100-fold decrease in lead concentrations. Regulation worked.
Concerns are growing with our southern neighbour's government move to deregulate many key elements of the EPA’s mission.
“We should not forget the lessons of history. And the lesson is those regulations have been very important."
https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
