While this sounds concerning, “a few parts per trillion” is an incredibly low amount of anything. I would be curious to see how they actually achieved any precision in that range. The FDA limit on lead in bottled water is 5 parts per billion or 5,000 parts per trillion. The EPA limit in tap water is 15,000 ppt.
While this sounds concerning, “a few parts per trillion” is an incredibly low amount of anything. I would be curious to see how they actually achieved any precision in that range. The FDA limit on lead in bottled water is 5 parts per billion or 5,000 parts per trillion. The EPA limit in tap water is 15,000 ppt.