| Assessing inputs of contaminants in the upper Ottawa River near the town of Témiscaming, Québec | |
| By Arbour, Camilla |
Source: library.utoronto |
4/1/2020 |
|
|
|
The upper part of the Ottawa River Watershed has long been a part of the lives of Indigenous Peoples, and early settlers. Defining the border between Ontario and Québec, the river has been impacted by human activities including forestry, agriculture, mining, and ore and timber processing. Environmental quality was surveyed through inventories of aquatic invertebrates and assessment of general environmental metrics, including dissolved oxygen, pH, conductivity and temperature, followed by more targeted assessment of contaminants in water and sediment. Water quality was generally within acceptable limits in terms of the concentrations of known toxic substances, except for aluminum, copper, iron, pH and total suspended solids which exceeded federal and provincial guidelines established for the protection of aquatic life. |
|
|
The sediment was seriously contaminated in lac aux Brochets on Gordon Creek, and offshore from the pulp and paper (P&P) industrial landfills and nearby train tracks, with arsenic, chromium, copper, iron, nickel, total phosphorus, lead and zinc all exceeding the interim and established Provincial and Federal guidelines for the lowest level for the protection of aquatic life. Manganese exceeded (Quebec) Provincial guidelines for severe level effects, showing significant pulses offshore train tracks and industrial landfills. Further downriver, leachate from a municipal landfill, and excess nutrients from forestry activities upstream in Fournier Creek affected water and sediment quality. General metrics of the physico-chemical environment were reliable predictors of areas showing elevated metal contamination in sediment and water; surveys of aquatic invertebrates were less reliable. Suggestions are offered regarding the control of contaminant releases from landfill wastes, and procedures that could reduce current and future industrial discharges. |
|
|
|
|
| News Id | | Source | Stamp | country |
| 2451 | Scientists Track Eels to Their Ocean Breeding Grounds in World-First | sciencealert | 2022-10-19 | EU |
| 2452 | Yale researchers create a new amphibious turtle robot with shape-shifting limbs | interestingengineering | 2022-10-16 | US |
| 2453 | B.C. First Nations seek action on sturgeon deaths, after court blamed declines on dam | globalnews | 2022-10-13 | CA |
| 2454 | Sambro, N.S., fisher, fish buyer, violated law during unmonitored halibut offloads, judge rules | CBC News | 2022-10-13 | CA |
| 2455 | America's largest trout producer gains ASC certification | The Fish Site | 2022-10-13 | US |
| 2456 | Пришла осень, вода остывает, у рыбы закончилось кормовое изобилие | Охотники.ру | 2022-10-06 | RU |
| 2457 | Low water levels along French river help to reveal medieval fishery | medievalists | 2022-10-06 | FR |
| 2458 | Competitive fishing has a cheating problem, and these Canadian anglers say they've seen it happen | CBC News | 2022-10-06 | CA |
| 2459 | Tiny Fish at Center of 1970s Supreme Court Case Achieves Redemption | cnet | 2022-10-06 | US |
| 2460 | 25,000 Pounds of Invasive Carp Taken in Missouri’s Grand River | sportfishingmag | 2022-10-06 | US |
| 2461 | Pair of anglers embroiled in Lake Erie fishing cheating controversy indicted on felony charges | Fox News | 2022-10-12 | US |
| 2462 | The link between trout genetics and sustainability | The Fish Site | 2022-10-14 | FR |
| 2463 | Новые методы фиксации численности рыбы в водоемах России | Рыболовство. | 2022-10-13 | RU |
| 2464 | Объевшись мальков горбуши | Охотники.ру | 2022-10-04 | RU |
| 2465 | "Fishing can teach you life lessons" Words of wisdom from the streams of Appalachia | wlos | 2022-09-25 | US |
| 2466 | Angler reels pending-record blue catfish from Tennessee river | usatoday | 2022-09-26 | US |
| 2467 | Young man illegally fishing at MacRitchie Reservoir throws fish back into water | mothership | 2022-09-27 | SG |
| 2468 | fishing tournament highlights critical role oyster reefs play in Chesapeake Bay | CBS Baltimore | 2022-09-27 | US |
| 2469 | 5th grader reels in fish her dad says measured over 8 feet | click2houston | 2022-09-28 | US |
| 2470 | Poland blames toxic algae for Oder river fish kill | gulf news | 2022-09-29 | PL |
| 2471 | Evidence of illegal fishing discovered at reef | jersey evening post | 2022-09-25 | ES |
| 2472 | 'Undesirable' fish species found in western Kansas lake | hayspost | 2022-09-29 | US |
| 2473 | WA government pushes ahead with nine-month fishing ban despite 'draconian' label | adc | 2022-09-30 | AU |
| 2474 | They leaped at the chance to hook mahi-mahi. But L.A.’s hottest fish is hard to catch | latimes | 2022-09-26 | US |
| 2475 | Fishy Fuel: Turning Fish Grease Into Diesel | wweek | 2022-09-28 | US |
|
|
|
|
|
|