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Preserved hair reveals just how bad lead exposure was in the 20th century | HN Companion
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Preserved hair reveals just how bad lead exposure was in the 20th century (livescience.com)
19 points by Brajeshwar 1 day ago | 1 comment
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ChrisArchitect 23 hours ago [–]

[dupe] you just can't resist can you https://news.ycombinator.com/item?id=46865275

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