Anti-bacterial products might cause environmental pollutionMay 18th, 2008 - 12:06 pm ICT by admin
Washington, May 18 (ANI): A new study has surprisingly linked personal care products like anti-bacterial soaps and cleaning agents to environmental pollution and human health concerns.
The study, conducted by the Biodesign Institute at Arizona State Univesity in the US, took the case of triclosan and triclocarban, two closely related antimicrobials.
Triclosan (TCS) has long captured the attention of toxicologists due to its structural resemblance to dioxin.
Triclocarban (TCC) has ski-rocketed in 2004 from an unknown and presumably harmless consumer product additive to one of today’s top ten pharmaceuticals and personal care products most frequently found in the environment and in US drinking water resources.
Now, Biodesign Institute researcher Rolf Halden and co-workers, in a feat of environmental detective work, have traced back the active ingredients of soaps - used as long ago as the 1960s - to their current location, the shallow sediments of New York City’s Jamaica Bay and the Chesapeake Bay, the largest estuary of the US.
“Our group has shown that antimicrobial ingredients used a half a century ago, by our parents and grandparents, are still present today at parts-per-million concentrations in estuarine sediments underlying the brackish waters into which New York City and Baltimore discharge their treated domestic wastewater,” said Halden.
“This extreme environmental persistence by itself is a concern, and it is only amplified by recent studies that show both triclosan and triclocarban to function as endocrine disruptors in mammalian cell cultures and in animal models,” he added.
Aiding in his team’s research was another type of contamination: the radioactive fallout from nuclear testing conducted in the second half of the last century.
Using the known deposition history and half-lives of two radioactive isotopes, cesium-137 and beryllium-7, Halden and his collaborators Steven Chillrud, Jerry Ritchie and Richard Bopp were able to assign the approximate time at which sediments observed to contain antimicrobial residues had been deposited in the two East Coast locations.
By analyzing vertical cores of sediment deposited over time in the two sampling locations on the East Coast, they showed that TCC, and to a lesser extent, TCS, can persist in estuary sediments.
TCC was shown to be present at parts per million levels, which could represent unhealthy levels for aquatic life.
According to Halden, “The affected organisms are experiencing multi-generational, life-time exposures to our chemical follies.” (ANI)
- Antimicrobial products 'toxic for environment, dangerous to human health' - Nov 10, 2010
- Chemical in soap, toothpaste impairs muscle strength - Aug 14, 2012
- Being to clean could make you prone to more allergies - Nov 29, 2010
- Long lasting chemicals toxic to humans and the environment - Dec 22, 2010
- Soap ingredient could treat parasitic disease that affects 2 billion - Sep 23, 2010
- Chemical in toothpastes 'can leave unborn babies brain damaged' - Dec 01, 2010
- No adverse effects near nuclear plants - Aug 03, 2011
- Low levels of radioactive particles detected in Europe, source unknown - Nov 11, 2011
- Bangladesh's landmass increased due to sedimentation in rivers - Apr 23, 2010
- God forbid fools are not sitting here: Pakistan chief justice - Apr 08, 2011
- Chemicals used in industrial applications may affect cholesterol levels - Nov 08, 2009
- Chinese nuke plant safer than Fukushima: Experts - Mar 20, 2011
- TCS expands US presence, opens new facility in California - Jan 31, 2012
- Glacial melting blamed for increased pollutants in environment - Oct 22, 2009
- Fragranced products emit unlisted 'toxic' chemicals, shows study - Oct 31, 2010
Tags: arizona state univesity, biodesign institute, brackish waters, cesium 137, chesapeake bay, detective work, domestic wastewater, environmental pollution, estuarine sediments, halden, human health concerns, institute researcher, jamaica bay, mammalian cell cultures, parents and grandparents, personal care products, radioactive fallout, shallow sediments, triclocarban, triclosan