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Outskirts of Shrewd'm / Science, Technology, Engineering and Mathematics
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Author: onepoorguy   😊 😞
Number: of 283 
Subject: leaded gas ban
Date: 02/08/26 4:57 PM
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No. of Recommendations: 8
Measurable benefits because of keeping old hair.

https://www.sciencealert.com/mormon-hair-clippings...

Hair samples preserved in family scrapbooks across the past century have revealed the success of the US Environmental Protection Agency's (EPA) efforts to crack down on lead pollution since the 1970s.
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