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1 sept 1965 año - Clair Patterson publishes “Contaminated and Natural Lead Environments of Man”

Descripción:

Elevated human blood‑lead levels were far above natural background, implicating petrol as a dominant source.

Añadido al timeline:

Environmental exposures and global heatlh

hace 8 horas

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23

fecha:

1 sept 1965 año

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~ 60 years ago

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