UBC researchers have developed a treatment to remove hazardous 香蕉视频直播榝orever chemicals香蕉视频直播� from our environment.
Professor Madjid Mohseni has been at the forefront of the research effort, working with his colleagues in Quebec where polyfluoroalkyl substances, known as PFAS, have been detected in that province香蕉视频直播檚 water sources.
香蕉视频直播淚n B.C. unfortunately, the data is lacking so we hope to start gathering that information to determine how widespread the problem is香蕉视频直播e are at stage now to take what we have developed from the lab testing and test it out in field studies,香蕉视频直播� Mohseni said.
The alarm about the PFAS chemical contaminant issue was sounded earlier this year by Bob Hrasko, administrator for the Black Mountain Irrigation District (BMID).
Hrasko sent a memo to local water authority officials alerting them to the growing concern of the proliferation of PFAS chemicals being detected in both soil and water which don香蕉视频直播檛 break down over time, hence the forever chemical label they are given.
香蕉视频直播淧FAS seems to be the number one issue regarding drinking water supply in the USA right now,香蕉视频直播� Hrasko stated in his memo.
PFAS chemicals are used in a variety of manufactured products because of their ability to withstand water, heat or oil, which also means they don香蕉视频直播檛 break down in the environment.
Hrasko said BMID has tested its water supply for traces of PFAS but has not detected any as of yet.
Mohseni said he is aware of Hrasko香蕉视频直播檚 concerns, and noted Health Canada studies have already confirmed the presence of PFAS in the blood of those tested.
香蕉视频直播淭he good news is that presence is declining a little bit because of those legacy compounds which have been banned from use already,香蕉视频直播� he said.
The regulation of PFAS in Canada is in its infancy and exists currently only at the federal level and in a limited way in B.C. and Ontario. In the remaining provinces and territories, PFAS substances remain unregulated.
香蕉视频直播淚t is very difficult to accurately estimate at this point, but the EPA (Environmental Protection Agency)believes about half the population in the U.S., about 200 million, are going to be affected by PFAS香蕉视频直播t this point, Canada香蕉视频直播檚 regulations regarding use of these chemicals are not as stringent as what is proposed in the U.S. but we will be affected by this and we need solutions.香蕉视频直播�
Those solutions are two-fold; producing a chemical treatment to remove PFAS contamination from our soil and water supply, and for manufacturers to develop safer chemicals to create heat-, water- and stain-resistant products which don香蕉视频直播檛 harm the environment, he said.
香蕉视频直播淚f we all work together, what we do on the treatment side is one part of the puzzle, and what hope is to find a tool that will become part of the toolbox we can have to respond to this issue.香蕉视频直播�
One of the challenges, Mohseni noted, is the measure regulations set by the EPA calls for detection at four parts per trillion concentration.
香蕉视频直播淭hat is almost non-detectable as many analytical instruments at our current disposal are not able to measure that low香蕉视频直播ou need special equipment and the trained personnel to carry out that process, and there are few labs right now certified to confirm test results for that concentration level,香蕉视频直播� he said.
香蕉视频直播淏ut I am confident, where there is a will there will always be a way.香蕉视频直播�
At this stage, Mohseni said for coastal regions like Vancouver or Victoria where water is drawn from pristine sources, PFAS is less of a concern.
He says the Interior water supply, such as the Okanagan Valley, would be a greater focus for testing to determine the extent of the PFAS infiltration in local environments.
香蕉视频直播淲here there is some kind of wastewater influence in the drinking water supply, it is more likely you will see indications of rising PFAS levels in the water,香蕉视频直播� he added.
香蕉视频直播淲e just don香蕉视频直播檛 know how big the problem is yet.香蕉视频直播�
READ MORE: Chemical contamination warning for Okanagan watershed
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