How polluted is Lake Superior?

As for pollution, Lake Superior is the cleanest of the five Great Lakes. The lake's massive size helps dilute any pollutants that enter the water. Plus, it has fewer farms along its shores, reducing pollution. However, even though the lake is doing great, it could be doing better.



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Because Lake Superior is nourished by forests and watered by streams, changes on the land become changes in the lake. We find algae blooms in Lake Superior bays, decreasing clarity in the western arm of the lake, contaminated sediment in the Duluth-Superior harbor and toxic contaminants building up in the food chain.

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Yes, Lake Superior is safe for swimming. Lake Superior has the lowest drowning rate among all the Great Lakes.

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Known as one of the clearest lakes in the world, Rotomairewhenua in New Zealand is estimated to have a visibility of almost 80 meters. Blue Lake's water is so clean, its clarity is comparable to distilled water.

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Our Daily Dips in August at Agawa Bay are by far the warmest and most comfortable since the surface water maxes out at about 20°C (68°F). Floating at the surface, you could almost pretend you're in the Bahamas… … until you accidentally dip your toes a little too deep and get the cold shock of a lifetime!

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Lake Superior is the world's largest freshwater lake by area (31,700 mi2 /82,100 km2). It is also the coldest and deepest of the Great Lakes, with a maximum depth of 406 meters (1,332 feet). By most measures, it is the healthiest of all the Great Lakes.

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Lake Superior holds a massive volume of water because of its enormous inland basin and the hundreds of rivers that feed it.

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Bainbridge believes Lake Superior's advisories misleadingly brand all fish as unsafe. “Lake Superior is still one of the most pristine resources for consumable products,” he said. “It's really not fair on how that can affect our market.” Experts say he has a point.

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Lake Karachay, a small lake in the southern Ural mountains in western Russia, is thought to be the most polluted spot on Earth. Starting in 1951, the Soviet Union used Karachay as a dumping site for radioactive waste from Mayak, a nearby nuclear waste storage and reprocessing facility located near the town of Ozyorsk.

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What would happen if Lake Superior dried up? Without Lake Superior, areas near the lake would see far less snow each winter, and the distribution of snow in the central and eastern regions around the lake would be far different. The effects would not be limited to snow.

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The most polluted Great Lake is Lake Erie.

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Lake Michigan in particular is the roughest of the Great Lakes, and poses a major risk to those thinking of taking a dip.

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How many shipwrecks are in Lake Superior? There are over 6,000 shipwrecks in the Great Lakes, having caused an estimated loss of 30,000 mariners' lives. It is estimated that there are about 550 wrecks in Lake Superior, many of which are still undiscovered.

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Blue Lake, New Zealand Blue Lake has underwater visibility up to 70 to 80 meters or 230 to 260 feet down, which is insane! Apart from being the world's clearest lake, it's also the clearest body of natural freshwater. The water in Blue Lake is comparable to distilled water based on laboratory measurements.

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