HOME >> BIOLOGY >> NEWS
Anti-bacterial additive found in Maryland streams

A toxic chemical used in hand soaps, cleaners and other personal care products to kill germs is deposited and remains in the environment long after the products are used, according to researchers at the Johns Hopkins Bloomberg School of Public Health. The chemical--3,4,4'-trichlorocarbanilide (triclocarban), marketed under the trademark TCCTM--is a non-agricultural polychlorinated phenyl urea pesticide that has been widely used for decades to kill bacteria. The researchers were among the first to detect concentrations of triclocarban in rivers and influent of wastewater treatment facilities. In some instances, they detected concentrations of triclocarban in waterways at levels 20 fold higher than previously reported. The study furnishes the first peer-reviewed environmental data of triclocarban contamination in U.S. water resources. It is published in the online edition of Environmental Science & Technology.

"Our study shows that environmental contamination with triclocarban is widespread but greatly underreported because conventional monitoring techniques cannot detect it," said the study's lead author Rolf U. Halden, PhD, PE, assistant professor of the School's Department of Environmental Health Sciences and founding member of its Center for Water and Health. "We had to specifically develop a new method, termed liquid chromatography electrospray ionization mass spectrometry (LC/ESI/MS), to detect triclocarban in water. Using this new method, we found the disinfectant in all Maryland streams we examined. Now the big question is what are the ecological and human health consequences of triclocarban in the environment? From the chemical structure, one would expect the compound to concentrate in fish and bio-accumulate in the food chain, but at this point we can only speculate," said Dr. Halden. He added that more research is needed to determine whether the environmental contamination discovered translates into human exposure and any corresponding lo
'"/>

Contact: Kenna Lowe
paffairs@jhsph.edu
410-955-6878
Johns Hopkins University Bloomberg School of Public Health
18-Aug-2004


Page: 1 2

Related biology news :

1. Formula additives boost small childrens intelligence in study
2. Researchers find two metabolites of gasoline additives in humans
3. Computers use Darwinian model to evolve fuel additives
4. New signs of life found at the Poles
5. Key cell-death step found
6. European common frog found to use novel mating strategy
7. Byproduct of water-disinfection process found to be highly toxic
8. Genuine stem cells found in skin might treat hair loss, wounds
9. Flame retardants found on supermarket shelves
10. Anti-cancer compound in vegetables found to block late-stage breast-cancer cell growth
11. Genetic clues found for common congenital brain disorder

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/23/2019)... ... August 22, 2019 , ... ... following their acquisition in June of 2018. Along with the name change, this ... , “Our goal was to create a cohesive brand that blended our core ...
(Date:8/19/2019)... ... August 19, 2019 , ... Since the microscope was first ... dimensional slices which are placed on microscope slides, stained and visualized by a ... features such as vasculature and thus researchers in the last few years have ...
(Date:8/14/2019)... , ... August 14, 2019 , ... ... 4Q/2019, will explore how developments in microbiome therapeutics are helping to promote normal ... for more information. , Advancements will educate about the DECODE.DESIGN.CURE™ technology platform, which ...
Breaking Biology News(10 mins):
(Date:8/15/2019)... ... August 15, 2019 , ... PathSensors announced today that ... member of the Institute of Food Technologists (IFT) Board of Directors, Illinois Institute ... Institute for Food Safety and Applied Nutrition (JIFSAN) Advisory Council and the University ...
(Date:8/14/2019)... ... August 13, 2019 , ... ... on prepackaged mobile phases for QC laboratories. After gaining a few significant clients, ... sciences approach into a valued supplier of manufacturing processing solutions, including reagents for ...
(Date:8/7/2019)... ... August 07, 2019 , ... Locus Agricultural Solutions (Locus AG) reports record levels ... “probiotics”), including Rhizolizer ® , which is pulling up to 121% more carbon ... offered to date. Results from the treatment of almonds, cherries, turf/sod, grapes and citrus ...
(Date:8/6/2019)... ... August 06, 2019 , ... ... characterizing microbiome populations down to the strain level, has announced partnerships with six ... other products to companies and research organizations in Australia, Benelux, Indonesia, Korea, Malaysia, ...
Breaking Biology Technology:
Cached News: