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Contaminant from coal mines already high in some Alberta rivers: unreported data

Contaminant from coal mines already high in some Alberta rivers: unreported data

The province's plan for large-scale expansion of the industry is fueling widespread criticism that includes concerns over selenium pollution. The data shows that same contaminant has been found for years at high levels downstream of three mines and never publicly reported. The findings raise questions about Alberta Environment, said a former senior official who has seen the data. "There were lots of [selenium] numbers and it was consistently above the water quality guidelines and in many cases way higher," said Bill Donahue, the department's one-time executive director of science. "Why did Alberta Environment sit on these data for easily the last 10 to 15 years?"

A TALE OF THREE WATERSHEDS: WHAT WE KNOW — AND DON’T KNOW — ABOUT THE HEALTH OF CANADA’S FRESHWATER

A TALE OF THREE WATERSHEDS: WHAT WE KNOW — AND DON’T KNOW — ABOUT THE HEALTH OF CANADA’S FRESHWATER

Canada is famously home to 20 percent of the world’s freshwater — but how well are we stewarding this supply? WWF-Canada recently reassessed the health of our country’s 25 watersheds to better understand how they’re responding to threats from pollution, habitat loss and climate change. Our 2020 Watershed Reports found that 26 per cent of Canadas’s 167 sub-watersheds received a score of Good or Very Good, which is good or very good news! But what’s bad, or possibly very bad, is that nearly 60 per cent of these sub-watersheds received no score at all because they remain Data Deficient. In other words, we just don’t know. This lack of data is concerning as we need a complete picture to determine which areas need dedicated efforts to protect our freshwater ecosystems.

Canadian Arctic awash in microplastics, study finds

Canadian Arctic awash in microplastics, study finds

In the first large-scale survey of its kind in the region, researchers sampled more than 30 locations across the eastern Arctic and Hudson Bay and were able to detect microplastics nearly everywhere they looked, including in surface waters, marine sediments and in the guts of zooplankton – the tiny, floating organisms that occupy the base of the Arctic food chain. And while the long-term effects of the materials on the environment and on human health remain largely unknown, the results suggest widespread exposure is becoming inescapable, even for people living in the most remote areas of the globe.

Toronto launches $3B project to improve water quality in Lake Ontario and city's waterways

Toronto launches $3B project to improve water quality in Lake Ontario and city's waterways

City officials have launched Toronto's largest and most significant storm water management program — the Don River and Central Waterfront and Connected Project — which will halt the flow of sewage into Lake Ontario and clean up waterways. The first phase of the five-phase project — the Coxwell Bypass Tunnel — will see a 10.5 kilometre long and 6.3 metre wide tunnel built at a cost of $400 million. The overall project is expected to cost $3 billion.

Canada failed at monitoring waste dumps from mining companies

Canada failed at monitoring waste dumps from mining companies

Canada's federal environment and fisheries departments failed at monitoring waste dumps by mining companies and did not always check if these firms were carrying out plans to save fish from lethal chemicals, Canada's environment commissioner has found.

The Great Lakes are full of microfibres — but there might be an easy solution

The Great Lakes are full of microfibres — but there might be an easy solution

A new study is taking the fight against microfibres in the Great Lakes back to the source: washing machines. The tiny particles of plastic are shed by synthetic fabrics like nylon and fleece when they're washed, slipping through water treatment plants and into the lakes. To stem the flow, researchers will install about 100 special filters on washing machines in Parry Sound, Ont. to see if they reduce the amount of plastic particles that show up at the town's water treatment plant.

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