Hair shows banning lead in gas worked

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Hair shows banning lead in gas worked

www.futurity.org

Beep@lemmus.orgBanned to

News@lemmy.worldEnglish · 5 个月前

A new analysis of hair samples spanning about 100 years shows big drops in lead levels since 1916.

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5 个月前
The war on drugs would like a word with you.

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