• picture
  • picture
PRI's Environmental News Magazine

Health Update

Air Date: Week of June 23, 2000

Living On Earth’s Diane Toomey reports on how the level of social disorder in your neighborhood may contribute to your level of depression.

Transcript

GRABER: When natural disasters strike, drinking water supplies can become contaminated, causing a host of unpleasant and debilitating illnesses. So scientists in New Mexico have developed a battery-powered water purifier that looks like a small, pen-shaped device. You drop a salt pellet into two milliliters of water, then twist the top of the pen. This action creates an electrical current, which runs through the solution and changes molecular bonds, leaving chlorine and oxygen molecules in an electron hungry state. Then you pour the solution into contaminated water, and the reformulated chlorine and oxygen molecules start grabbing electrons from other molecules nearby. All this electron-grabbing can kill enough bacteria and viruses to make a liter of water safe enough to drink, even by EPA standards. And that's this week's technology update. I'm Cynthia Graber.

 

 

Living on Earth wants to hear from you!

P.O. Box 990007
Prudential Station
Boston, MA, USA 02199
Telephone: 1-617-287-4121
E-mail: comments@loe.org

Donate to Living on Earth!
Living on Earth is an independent media program and relies entirely on contributions from listeners and institutions supporting public service. Please donate now to preserve an independent environmental voice.

Newsletter
Living on Earth offers a weekly delivery of the show's rundown to your mailbox. Sign up for our newsletter today!

Major funding for Living on Earth is provided by the National Science Foundation.

Committed to healthy food, healthy people, a healthy planet, and healthy business.

Innovating to make the world a better, more sustainable place to live.

Kendeda Fund, furthering the values that contribute to a healthy planet.

The Grantham Foundation for the Protection of the Environment: Committed to protecting and improving the health of the global environment.

Contribute to Living on Earth and receive, as our gift to you, an archival print of one of Mark Seth Lender's extraordinary hummingbird photographs. Follow the link to see Mark's current collection of photographs.