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HOW WE GOT TO NOW

The Development of Chlorine

  • Aired: 09/11/2014
  • 04:55
  • Rating: NR
When the toilet was first invented, it overwhelmed water systems and caused a real threat to public health. Here, Steven describes the story of how inventor John Leal doggedly pursued his idea to use chlorine to purify water.
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The Development of Chlorine
The Development of Chlorine
How did chlorination help purify drinking water in America?
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