Navigation Links
'Estrogen flooding our rivers,' Université de Montréal study

The Montreal water treatment plant dumps 90 times the critical amount of certain estrogen products into the river. It only takes one nanogram (ng) of steroids per liter of water to disrupt the endocrinal system of fish and decrease their fertility.

These are the findings of Liza Viglino, postdoctoral student at the Universit de Montral's Department of Chemistry, at the NSERC Industrial Research Chair in Drinking Water Treatment and Distribution, who is under the supervision of Professors Sbastien Sauv and Michle Prvost.

The presence and effects of estrogen residues on aquatic wildlife are well documented. However, this research is unique because it didn't only consider natural hormones and those used in oral contraceptives it also included products used in hormone therapy that is prescribed to menopausal women. Data indicates that 128 million contraceptive pills and 107 million doses of hormone therapy are consumed every year in Quebec.

Water samples were taken in five different spots: the Mille-les river, the St. Lawrence River, the two water collectors entering the Montreal treatment plant and at the exit of the plant.

The only compound detected in the St. Lawrence River was estradiol, a natural hormone. The water still contained 90 ng of estradiol per liter after being treated. "If other products weren't detected it doesn't mean they aren't present," says Viglino. "Our method doesn't detect amounts lower than 7 ng per liter."

According to Professor Sauv, ozone treatments could eliminate these hormonal compounds. He also stresses that 80 to 90 percent of antidepressants remain in the water after treatment. These molecules can have a variety of effects on aquatic wildlife. Again, ozone treatment could destroy these molecules.


Contact: Sylvain-Jacques Desjardins
University of Montreal

Page: 1

Related medicine news :

1. Estrogen Cream No Match for Sun-Damaged Skin
2. Estrogen May Have Preventive Role in Womens Schizophrenia
3. Team discovers new inhibitors of estrogen-dependent breast cancer cells
4. Estrogen therapy helps or hurts the brain depending on reproductive status
5. Anti-estrogen drug therapy reduces risk of invasive breast cancer in older women
6. Previously unseen switch regulates breast cancer response to estrogen
7. Estrogen therapy increases benign breast disease risk
8. Estrogen Supplements May Raise Odds of Benign Breast Disease
9. New study finds adverse effects of estrogen replacement therapy are related to the dose
10. Mitochondria play role in pathogenesis of AD and estrogen-induced neuroprotection
11. Estrogen Levels in Blood Predict Breast Cancers Return
Post Your Comments:
(Date:6/26/2016)... , ... June 26, 2016 , ... On June 10-11, ... of the 2016 Cereal Festival and World’s Longest Breakfast Table in Battle Creek, MI, ... the city’s history as home to some of the world’s leading providers of cereal ...
(Date:6/26/2016)... ... June 26, 2016 , ... Brent Kasmer, a legally blind and certified personal trainer is ... a fitness app. The fitness app plans to fix the two major problems leading the ... one size fits all type program , They don’t eliminate all the reasons ...
(Date:6/25/2016)... ... June 25, 2016 , ... Austin residents seeking Mohs surgery ... of Mohs Surgery and to Dr. Russell Peckham for medical and surgical dermatology. , ... for skin cancer. The selective fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey ...
(Date:6/25/2016)... ... June 25, 2016 , ... First Choice Emergency Room , ... Sesan Ogunleye, as the Medical Director of its new Mesquite-Samuell Farm facility. , ... our new Mesquite location,” said Dr. James M. Muzzarelli, Executive Medical Director of First ...
(Date:6/25/2016)... ... , ... On Friday, June 10, Van Mitchell, Secretary of the Maryland Department ... in recognition of their exemplary accomplishments in worksite health promotion. , The Wellness at ... Wellness Symposium at the BWI Marriott in Linthicum Heights. iHire was one of 42 ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 2016 Dublin ... addition of the " Global Markets for Spectroscopy ... This report focuses on the ... review, including its applications in various applications. The report ... includes three main industries: pharmaceutical and biotechnology, food and ...
(Date:6/24/2016)... Mass. and SAN CLEMENTE, Calif. , ... California -based mobile pulmonary function testing company, is now able ... PFT devices developed by ndd Medical Technologies , Inc. ... testing done in hospital-based labs.  Thanks to ndd,s EasyOne PRO ® ... , can get any needed testing done in the comfort ...
(Date:6/24/2016)... , Belgium , June 24, ... VNRX), today announced the appointment of Dr. ... Directors as a Non-Executive Director, effective June 23, ... Audit, Compensation and Nominations and Governance Committees.  As ... Futcher will provide independent expertise and strategic counsel ...
Breaking Medicine Technology: