Algal blooms often are green or blue-green, although golden-brown algae, or diatoms, are common and can give a lake or pond a brown or cloudy appearance. pdf icon [PDF – 78 pages] external icon Washington DC: Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology. Washington DC; 2008. It is the result of a freshwater algae bloom… Headlines in the 1960s suggesting that Lake Erie was “dying” from choking on algae led to studies that linked excess use of phosphorus by humans to greening lakes. Scientific assessment of freshwater harmful algal blooms. The current algae bloom started last week and cover over 700 square miles of Lake Erie. The algae bloom came late to western Lake Erie this year, turning the waters green from Monroe to the upriver sections of two Ohio rivers during the regional heat wave at the end of September. The algae bloom that turned part of Lake Erie toxic just a few weeks ago is bringing a new level of attention to runoff and several other troubles in the Great Lakes. The International Joint Commission is an independent organization that gives advice to the U.S. and Canada on Great Lakes issues. Case Western Reserve researcher aims to stop fertilizer runoff into Lake Erie Updated May 28, 2020; Posted May 28, 2020 A bloom of toxic blue-green algae along the Lake Erie shoreline. Lake Erie Algae Blooms. Lake Erie is the fourth-largest lake (by surface area) of the five Great Lakes in North America and the eleventh-largest globally. The governments of Canada and the United States last month took the most significant step yet to curb the pollutants that fuel toxic algae blooms in Lake Erie. ELPC is fighting to clean up pollution and hold state & federal authorities responsible for ensuring a safe, clean Lake Erie. This is an ongoing problem for this area as scientists estimated that algae blooms have been growing since 2000. Prevention and Treatment According to the EPA, surface discoloration, fish kills , and “thick, mat-like accumulations on the shoreline and surface” indicate an algal bloom is underway. It is the southernmost, shallowest, and smallest by volume of the Great Lakes and therefore also has the shortest average water residence time.At its deepest point Lake Erie is 210 feet (64 metres) deep. TOLEDO, Ohio (AP) — Environmental groups have filed a federal lawsuit pushing for more action to prevent the toxic algae blooms that plague Lake Erie's western basin each summer. Blooms of cyanobacteria (sometimes referred to as blue-green algae) like these happen when excess nutrients — mostly phosphorus — run off into Lake Erie from farms and sewage treatment plants. Algal blooms can turn a swimmable lake into a toxic stew where the hazardous blue-green algae (aka cyanobacteria) can thrive. Cleaning Up Lake Erie Lake Erie is plagued with annual algal blooms: toxic green clouds that stop the recreation economy, poison aquatic life, and threaten drinking water.

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