HOME >> BIOLOGY >> NEWS
Sunlight converts common anti-bacterial agent to dioxin

MINNEAPOLIS / ST. PAUL--Sunlight can convert triclosan, a common disinfectant used in anti-bacterial soaps, into a form of dioxin, and this process may produce some of the dioxin found in the environment, according to research at the University of Minnesota. The researchers said that although the dioxin was a relatively benign form, treating wastewater with chlorine could possibly lead to the production of a much more toxic species of dioxin. The study is in press in the Journal of Photochemistry and Photobiology A: Chemistry.

It had already been known that triclosan could be converted to dioxin in the laboratory, and it was also known that sunlight causes triclosan to degrade in the environment. But it had not been known that the natural degradation resulted in dioxin, said researchers Kristopher McNeill, an assistant professor of chemistry, and William Arnold, assistant professor of civil engineering. They discovered that the reaction could occur in Mississippi River water exposed to ultraviolet light.

"This form of dioxin is at least 150,000 times less toxic than the most dangerous form," said McNeill. "But repeated exposure to chlorine, perhaps in water treatment facilities, could chlorinate triclosan. After chlorinated triclosan is discharged from the facility, sunlight could convert it into more toxic dioxins. Such a process could be a source of highly toxic dioxin in the environment."

"This study also shows that the disappearance of a pollutant such as triclosan doesn't necessarily mean an enviromental threat has been removed," said Arnold. "It may just have been converted into another threat."

The researchers began their study after reading numerous environmental studies that reported the presence of pharmaceutical compounds in surface waters around the nation. McNeill and Arnold decided that the logical next step was to examine the natural processes that led to the loss of such materials in the environment. Last year, the U.
'"/>

Contact: Deane Morrison
morri029@umn.edu
612-624-2346
University of Minnesota
14-Apr-2003


Page: 1 2

Related biology news :

1. Sunlight, PCB exposure enhance skin cancer chances
2. How Nature Harvests Sunlight
3. Researchers discover new oceanic bacterial photopigment that converts light into biochemical energy
4. New process converts municipal waste into commodities and fuel
5. Most recent common ancestor of all living humans surprisingly recent
6. Hidden diversity: DNA barcoding reveals a common butterfly is actually 10 different species
7. European common frog found to use novel mating strategy
8. Genetic clues found for common congenital brain disorder
9. Stanford researchers findings may shed light on common, deadly birth defect
10. U-M scientists find common virus in human prostate tissue
11. Scientists suggest framework for epigenetics in common disease

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Sunlight converts common anti bacterial agent dioxin

(Date:2/13/2015)... 2015 ACT Genomics Co., Ltd., a ... transform cancer genomic information into precision diagnosis and ... raised US$ 8 million in the its first private ... Taipei, Taiwan , ACT Genomics has developed ... aim to implement next generation sequencing (NGS) and ...
(Date:2/12/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD ... authentication company focused on the growing mobile commerce market, ... for DISTRIBUTED METHOD AND SYSTEM TO IMPROVE ... further establishes NXT-ID,s position in the emerging "Internet of ... ability for multiple devices to collaborate with one another ...
(Date:2/10/2015)... WALTHAM, Mass., Feb. 10, 2015  Alere Inc. ... announced its financial results for the quarter ended ... Executive Officer and President of Alere said, "We ... refocussing Alere as the global leader in rapid ... closing the Alere Health divestiture in early January ...
Breaking Biology News(10 mins):ACT Genomics Raises $8 Million in its First Private Funding Round 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 2NXT-ID Patents Collaborative Services to Enable the "Internet of Things" 3Alere Inc. Announces Fourth Quarter 2014 Results 2Alere Inc. Announces Fourth Quarter 2014 Results 3Alere Inc. Announces Fourth Quarter 2014 Results 4Alere Inc. Announces Fourth Quarter 2014 Results 5Alere Inc. Announces Fourth Quarter 2014 Results 6Alere Inc. Announces Fourth Quarter 2014 Results 7Alere Inc. Announces Fourth Quarter 2014 Results 8Alere Inc. Announces Fourth Quarter 2014 Results 9Alere Inc. Announces Fourth Quarter 2014 Results 10Alere Inc. Announces Fourth Quarter 2014 Results 11Alere Inc. Announces Fourth Quarter 2014 Results 12Alere Inc. Announces Fourth Quarter 2014 Results 13Alere Inc. Announces Fourth Quarter 2014 Results 14Alere Inc. Announces Fourth Quarter 2014 Results 15Alere Inc. Announces Fourth Quarter 2014 Results 16Alere Inc. Announces Fourth Quarter 2014 Results 17Alere Inc. Announces Fourth Quarter 2014 Results 18Alere Inc. Announces Fourth Quarter 2014 Results 19Alere Inc. Announces Fourth Quarter 2014 Results 20Alere Inc. Announces Fourth Quarter 2014 Results 21Alere Inc. Announces Fourth Quarter 2014 Results 22Alere Inc. Announces Fourth Quarter 2014 Results 23Alere Inc. Announces Fourth Quarter 2014 Results 24Alere Inc. Announces Fourth Quarter 2014 Results 25Alere Inc. Announces Fourth Quarter 2014 Results 26Alere Inc. Announces Fourth Quarter 2014 Results 27Alere Inc. Announces Fourth Quarter 2014 Results 28Alere Inc. Announces Fourth Quarter 2014 Results 29Alere Inc. Announces Fourth Quarter 2014 Results 30Alere Inc. Announces Fourth Quarter 2014 Results 31Alere Inc. Announces Fourth Quarter 2014 Results 32Alere Inc. Announces Fourth Quarter 2014 Results 33
(Date:2/26/2015)... 26, 2015   Synageva BioPharma Corp. ... developing therapeutic products for rare disorders, today reported ... goals, other key objectives, and financial guidance.  Synageva,s ... at 4:30 p.m. EST to review the financial ... participate in today,s call by telephone, please dial ...
(Date:2/26/2015)... Woodbridge, NJ (PRWEB) February 26, 2015 ... and its affiliated companies, Wilentz, Goldman & ... in a trade secrets lawsuit against Genewiz Inc. in ... illegally obtained and utilized GenScript’s trade secrets, and that ... The court entered an order denying motions for ...
(Date:2/26/2015)... February 26, 2015 Already well respected ... line by expanding its Length Gauge offerings with new ... , Specifically, HEIDENHAIN’s pencil probe-style SPECTO length ... specification. Two new 1Vpp, 12mm stroke length variants ... applications. One is a variant with a weak spring, ...
(Date:2/26/2015)... 26, 2015 Regis Technologies announced ... of oncology drug substances. , Regis Technologies is proud ... new Potent Compound Suite (PCS) for 2015. , Regis ... foot, cGMP facility in Morton Grove, Illinois. The PCS ... potent compounds up to about one kilogram per batch. ...
Breaking Biology Technology:Synageva BioPharma Reports 2014 Full Year Financial Results 2Synageva BioPharma Reports 2014 Full Year Financial Results 3Synageva BioPharma Reports 2014 Full Year Financial Results 4Synageva BioPharma Reports 2014 Full Year Financial Results 5Synageva BioPharma Reports 2014 Full Year Financial Results 6Synageva BioPharma Reports 2014 Full Year Financial Results 7Synageva BioPharma Reports 2014 Full Year Financial Results 8Synageva BioPharma Reports 2014 Full Year Financial Results 9Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 2Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 3Accuracy and Versatile Gauging Go Hand in Hand at HEIDENHAIN 2Regis Extends cGMP Services to Oncology Market 2
Cached News: