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Leaded gasoline has remained legal until fairly recently in a surprising number of countries in and around the middle east. It is still used in aviation fuel.

The soil contamination from this is probably part of the issue with similar high levels of lead in chocolate products.

The wording they used was 'major' culprit. They also said "The poisoning has many causes."

lead paint is the other big culprit.

For those looking to hasten the end of lead poisoning, the Lead Exposure Elimination Project (https://leadelimination.org/) does great work.

And despite being illegal, lead is still in the majority of paint tested in India