Navigation Links
The dark side of spring? Pollution in our melting snow
Date:3/28/2011

TORONTO, ON With birds chirping and temperatures warming, spring is finally in the air. But for University of Toronto Scarborough (UTSC) environmental chemist Torsten Meyer, springtime has a dark side.

"During the winter months, contaminants accumulate in the snow," says Meyer, an expert on snow-bound organic contaminants and a post-doctoral fellow at UTSC. "When the snow melts, these chemicals are released into the environment at high concentrations."

In a specially designed, temperature-controlled laboratory at UTSCwhich includes a homemade snow-gun and a chemical pumpMeyer creates large baths of fresh snow already tainted with organic contaminants . This one-of-a-kind set-up enables the researcher to slowly melt his "dirty" snow, collect the melt-water and track which chemicals emerge from the snowpack and when.

Meyer's research reveals a worrying surprise. "One of the main findings is that there is a peak contaminant flush at the very beginning of the melt," he says. With the advent of spring, according to Meyer, comes a deluge of pollution.

By the time snow has turned black with muck and grime, many harmful chemicals including those from pesticides, car exhaust, telecommunications wiring insulation, water repellent clothing, paints or coatings may have already seeped out of the snow and into the surrounding ground water or surface water.

Although Meyer views his work as fundamental research, his findings have obvious real-world implications, such as how municipalities choose their snow dump sites. According to Meyer, cities and towns should be very careful to select well-contained sites to protect against that early flush of pollutants.

Meyer's research is unique because previous studies on snowmelt contaminants have all used either natural snow or very low volumes of artificially produced snow. He is also one of only a handful of researchers in the world who study snow and organic contaminants.

"Getting quantitative information on the flush of contaminants from a melting snowpack is particularly important," says Professor Frank Wania, head of Meyer's research cluster at UTSC. "The melt often coincides with time periods when many aquatic organisms are at a vulnerable stage of their life cycle."


'/>"/>

Contact: Karen Ho
karenho@utsc.utoronto.ca
416-208-5149
University of Toronto
Source:Eurekalert

Related biology news :

1. Pinpointing air pollutions effects on the heart
2. Hold your breath: Air pollution plays role in cardiac, metabolic diseases
3. Protecting ecosystems, pollution remediation goals of research at UH
4. Pollution with antibiotics leads to resistant bacteria
5. Pollution tax rebates little help for low-income workers
6. University of Miami scientists find new way to estimate global rainfall and track ocean pollution
7. Morning-after spike in ozone air pollution from Super Bowl XLV?
8. Findings on pollution damage to human airways could yield new therapies
9. Dodds contributes to new national study on nitrogen water pollution
10. Virginia Tech engineer identifies new concerns for antibiotic resistance, pollution
11. Plants play larger role than thought in cleaning up air pollution
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/2/2016)... 2, 2016 The Department of Transport ... the 44 million US Dollar project, for the , ... including Personalization, Enrolment, and IT Infrastructure , to ... production and implementation of Identity Management Solutions. Numerous renowned international ... Decatur was selected for the most compliant ...
(Date:5/20/2016)... , May 20, 2016  VoiceIt is excited ... with VoicePass. By working together, VoiceIt ...  Because VoiceIt and VoicePass take slightly different approaches ... increases both security and usability. ... about this new partnership. "This marketing ...
(Date:4/28/2016)... BANGALORE, India , April 28, 2016 ... subsidiary of Infosys (NYSE: INFY ), and Samsung ... global partnership that will provide end customers with a ... and payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ... for financial services, but it also plays a fundamental part ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... June 27, 2016 , ... Rolf K. Hoffmann, former ... of the University of North Carolina Kenan-Flagler Business School effective June ... UNC Kenan-Flagler, with a focus on the school’s international efforts, leading classes and ...
(Date:6/24/2016)... , June 24, 2016 Epic Sciences ... detects cancers susceptible to PARP inhibitors by targeting ... cells (CTCs). The new test has already been ... in multiple cancer types. Over 230 ... damage response pathways, including PARP, ATM, ATR, DNA-PK ...
(Date:6/23/2016)... Wausau, WI (PRWEB) , ... June 23, 2016 ... ... probiotic supplements, is pleased to announce the launch of their brand, UP4™ Probiotics, ... supplements for over 35 years, is proud to add Target to its list ...
(Date:6/23/2016)... , June 23, 2016 Houston ... with the Cy-Fair Sports Association to serve as ... the agreement, Houston Methodist Willowbrook will provide sponsorship ... and connectivity with association coaches, volunteers, athletes and ... with the Cy-Fair Sports Association and to bring ...
Breaking Biology Technology: