Do dolphins use soap?

Posted on Jul 1, 2009

Alarming discovery of antibacterial agent in wild Atlantic bottlenose dolphins shows need for improved chemical policy

An antibacterial agent commonly used in personal and household products has been found in bottlenose dolphins off the South East coast of the United States. Triclosan, which is commonly added to soaps, toothpastes, deodorants and other personal care products, as well as consumer products like socks, cutting boards, and garbage bags to help control bacteria, entered the waters through household sink wastewater.

Researchers report that this is the first time that a marine mammal is accumulating triclosan from water bodies where treated sewage is released. The study examined animals from rivers, an estuary, a harbor and a lagoon in South Carolina and Florida.

Triclosan can persist in waterways, affect natural communities of bacteria and algae, and also concentrate in fish and other aquatic organisms. It has also been found in the urine, breast milk and blood of humans.

It is still unknown the extent to which even low levels of Triclosan will affect the delicate balance of these creatures’ hormone and biological systems, suggesting the crucial importance of improved chemical regulation policy.

To learn more, read the Environmental Health news article.

By Sarah Brown