3 days ago · A century of hair samples proves leaded gas ban worked “We should not forget the lessons of history. And the lesson is those regulations have been very important.”

4 days ago · Banning lead in gas worked. The proof is in our hair Researchers analyzed samples of Utahns' hair going back a century to document a 100-fold decrease in lead concentrations.

1 hour ago · 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 …

3 days ago · A century of hair samples shows how environmental rules helped slash Americans’ lead exposure by up to 100 times.

3 days ago · In an effort to examine the dramatic reduction in toxic heavy metal exposure, researchers turned to human hair samples dating back a century.

2 days ago · These samples provide significant insight into lead levels on the state’s Wasatch Front, a densely populated area with a history of heavy industrial lead emissions.

2 days ago · Your Ancestors Were Breathing in Two Pounds of Lead a Year and Their Hair Proves It. After Lead Gas Ban, Lead Levels Dropped 100 Times The proof of environmental regulation success …