Blood Toxins

For the first time, the Centers for Disease Control and Prevention has taken blood samples from a cross-section of Americans to look for a number of toxic substances. These substances show up in pollutants from industry and in products like cigarettes. NPR's John Nielsen reports some good news; chemicals from second-hand smoke seems to be appearing in blood less frequently. There's worrisome news too; there are lots of other chemicals in our blood about which we know very little.

Comments

 

Please keep your community civil. All comments must follow the NPR.org Community rules and terms of use, and will be moderated prior to posting. NPR reserves the right to use the comments we receive, in whole or in part, and to use the commenter's name and location, in any medium. See also the Terms of Use, Privacy Policy and Community FAQ.