Navigation Links
Potent human toxins prevalent in Canada's freshwaters
Date:8/14/2012

Ottawa, Ontario (August 14, 2012) Nutrient pollution, one of the greatest threats to our freshwater resources, is responsible for the algal blooms that blanket our lakes and waterways in summer months. Large blooms of cyanobacteria ('blue green algae') can cause fish kills, increase the cost of drinking water treatment, devalue shoreline properties, and pose health risks to people, pets, and wildlife. A new paper just published in the Canadian Journal of Fisheries and Aquatic Sciences shows that microcystin, a toxin produced by cyanobacteria, is present in Canadian lakes in every province.

"Canadians enjoying their summer at the cottage need to know that those green scums of algae washing up on their beach are not only unsightly, but can also be a threat to their health and their children's health," says lead author, Diane Orihel, a researcher with the Department of Biological Sciences at the University of Alberta. "It's time to get serious about cleaning up the nutrients polluting our lakes."

Microcystins are well-established as potent liver toxins to humans and other mammals, and are classified as possible human carcinogens. "Blue-green algae present a growing health concern for domestic, agricultural and recreational water use in Canada and world-wide", warns Dr. David Kinniburgh, the Director of the Alberta Centre for Toxicology at the University of Calgary. "The microcystin toxins they produce can cause acute liver failure in humans and may even cause cancer with long-term exposure."

This study is the first to report on microcystin prevalence at a national scaledata from 246 bodies of water across Canada were collected. The authors determined that water quality was most at risk in lakes with the highest concentrations of nutrients. Nutrient-rich lakes and reservoirs, particularly in central Alberta and southwestern Manitoba, proved to have highest toxin concentrations, though all regions in Canada contained lakes tha
'/>"/>

Contact: Jenny Ryan
jenny.ryan@nrcresearchpress.com
613-949-8667
Canadian Science Publishing (NRC Research Press)
Source:Eurekalert

Page: 1 2

Related biology news :

1. Epigenetic signatures direct the repair potential of reprogrammed cells
2. New insight into mechanisms behind autoimmune diseases suggests a potential therapy
3. Interventional radiology: Potential breakthrough to treat mens enlarged prostate
4. Researchers report potential for a moderate New England red tide in 2012
5. Gallbladder shown as potential stem cell source for regenerative liver and metabolic disease
6. Researchers find potential dark side to diets high in beta-carotene
7. Beehive extract shows potential as prostate cancer treatment
8. Gene therapy for hearing loss: Potential and limitations
9. Folic acid food enrichment potentially protective against childhood cancers
10. Nuisance seaweed found to produce compounds with biomedical potential
11. Potential new approach to regenerating skeletal muscle tissue
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... too stressed they are often grouchy, grumpy, nasty, distracted ... at EPFL have just highlighted a fundamental synaptic mechanism ... loss of social skills and cognitive impairment. When triggered ... in the brain. This was revealed by a work ... Sandi,s team went to look for answers in a ...
(Date:9/18/2014)... are the ideal animal in which to study the ... ocean into tens of thousands of freshwater streams and ... to adapt to the new environment. , Breeding studies ... turned up one of the genes that controls tooth ... gene,s regulation in a freshwater population is associated with ...
(Date:9/18/2014)... invisible is probably the ultimate form of camouflage: you ... And this strategy is not as uncommon as you ... Baltimore County, USA, explains that the larval life stages ... one part of the anatomy that most creatures cannot ... eyes have to shield each individual eye unit with ...
Breaking Biology News(10 mins):How stress tears us apart 2Counting fish teeth reveals regulatory DNA changes behind rapid evolution, adaptation 2Counting fish teeth reveals regulatory DNA changes behind rapid evolution, adaptation 3Transparent larvae hide opaque eyes behind reflections 2
... and American Board of Internal Medicine (ABIM) announce the ... performance evaluation tools for blood specialists. , ... ABIM certification, ASH and ABIM have co-developed the Hematology ... to complete their practice performance assessment requirement for recertification. ...
... research project which could revolutionise the diagnosis and treatment ... four-year project, the results of which are now being ... means of identifying the two most deadly forms of ... for practitioners. , The implications for improving children's health ...
... to ferns to create a novel energy scavenging device that ... provide a method for powering micro and nano devices with ... works," said Michel Maharbiz, assistant professor of electrical engineering and ... the device. "If you build these things they will move. ...
Cached Biology News:New tool helps blood specialists improve patient care 2Hope for major advance in fighting world killer disease 2Hope for major advance in fighting world killer disease 3Ferns provide model for tiny motors powered by evaporation 2
(Date:9/18/2014)... (PRWEB) September 18, 2014 OMICS ... the globe to participate in the ‘Open Access ... articles to OMICS Group Pharma Journals ... one of the fastest emerging Sciences, accelerating with ... healthcare services across the globe. The industry is ...
(Date:9/18/2014)... September 18, 2014 SeqLL Inc., ... (tSMS™) technology, announced today the closing of a ... led by Genomic Diagnostic Technologies, will increase the ... applications. , Founded in March 2013 by Daniel ... Analyst at Helicos BioSciences, SeqLL has continued to ...
(Date:9/18/2014)... group of rare diseases that afflict skeletal growth ... hits at the fetal stage and is caused ... encoding fibroblast growth factor receptor 3 (FGFR3) has ... thanatophoric dysplasia (TD), a skeletal dysplasia that cause ... lethal, and achondroplasia (ACH), which causes stunted growth ...
(Date:9/18/2014)... can be pretty expensive. Now a team led by ... open-source library of designs that will let scientists slash ... the syringe pump. , Syringe pumps are used to ... or mixing chemicals in a reaction. They can also ... Pearce and his team of Michigan Tech students published ...
Breaking Biology Technology:Pharma and Omics Journals to Address Global Challenges during Open Access Week 2Pharma and Omics Journals to Address Global Challenges during Open Access Week 3SeqLL Closes Series-A Funding Round for Expansion of Single Molecule Sequencing 2Researchers use iPS cells to show statin effects on diseased bone 2Researchers use iPS cells to show statin effects on diseased bone 3Doing science just got cheaper -- and faster 2
... Up in the sky. It's a bird. It's a plane. It's ... denial in a single bound. Indeed, lately the media has been ... to result from the mass exodus of Baby Boomers from the ... believe that this trend and its impacts on businesses are black ...
... Milwaukee, Wis. - The National Cancer Institute ... Medical College of Wisconsin to study the growth ... second successful renewal of the grant that was first awarded ... ongoing principal investigator. , ,She and other investigators are developing ...
... This is the ninth in a series of articles ... sectors. The most recent article focused on worker classification. ... The idea is developed. Lawyers and accountants are on ... is formed. The name has been chosen. Perhaps workers, ...
Cached Biology Technology:Shades of gray: Business impacts of an aging workforce 2Shades of gray: Business impacts of an aging workforce 3Shades of gray: Business impacts of an aging workforce 4Shades of gray: Business impacts of an aging workforce 5Shades of gray: Business impacts of an aging workforce 6Early Stage, Step 9: Raising capital in the securities landscape 2Early Stage, Step 9: Raising capital in the securities landscape 3Early Stage, Step 9: Raising capital in the securities landscape 4
... a simple high performance method for removing ... without significant dilution of protein solution. ... Detergent-OUT Spin column and collect detergent free ... removing detergent from a maximum of 0.2 ...
... Chemicon Detergent-OUT SDS Kit is a simple ... protein solutions. Removes detergents without significant ... the protein solution on the Detergent-OUT Spin ... Med columns are suitable for removing ...
... from frozen embedded tissue blocks, which are ... ensure the highest quality. Tissues of each ... sectioned at a thickness of 7 microns ... large (3-5 mm in diameter) in comparison ...
... Zyagen tissue microarrays are derived from frozen ... rigorous quality control procedures to ensure the ... manually assembled in one block, sectioned at ... coated slides. Sections are large (3-5mm in ...
Biology Products: