Is Lake Erie cleaner than Lake Ontario?

The State of the Great Lakes 2022 Report by the Michigan Department of Environment, Great Lakes and Energy have analyzed and reported that Lake Superior and Lake Huron are rated as “good” ecosystems as Lake Michigan and Lake Ontario are rated “fair” and Lake Erie was ranked as “poor.”



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Lake Erie scored a good rating in two categories: drinking water and ground water. Swimming, consumption of fish and harmful pollutants are rated as fair.

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Lake Superior is the Cleanest and Clearest Great Lake As the coldest (it's refreshing!) and most northern of the lakes, Superior is also the clearest. Because of its somewhat isolated location and long cold winters, not much farming is done along Superior's shores.

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1. Peyto Lake. Starting our list of the clearest lakes in Canada is Peyto Lake.

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The opposite of Lake Superior in almost every way, Lake Ontario is the easternmost, lowest in elevation, smallest in surface area and perhaps the most polluted Great Lake.

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The major sources of phosphorus reductions were phosphorus outputs at wastewater plant discharges; eliminating phosphorous from laundry detergent; and no-till farming practices. Because of the phosphorus reductions, our Lake became much more clear and clean.

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The pollution process was exacerbated by water flowing into the lake from various industrial cities. Detroit was home to factories that dumped acids, iron and oil wastes into the river that flowed into Lake Erie at its Western end. Runoffs from Cleveland farms carried wastes into the lake from its Southern end.

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The Blue Lake, New Zealand This lake on New Zealand's South Island is the clearest lake in the world, according to science.

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Italy's Lugano and Maggiore were the most polluted in an international survey of 38 lakes.

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Although small in volume, Lake Erie is a thriving, productive environment.

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Things improved for the lake with the passage of environmental legislation in the 1970s. Bihn believes that Lake Erie is one of the great success stories of the Clean Water Act of 1972, leading some to dub it the comeback lake.

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Why is Lake Erie so important? Erie is the most biologically productive and diverse of all the Great Lakes due to its warm shallow waters. Alongside this astounding biodiversity, more than 11 million people get their drinking water from the Lake Erie watershed.

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About one-third of the total population of the Great Lakes basin is in the Lake Erie watershed. Approximately twelve million people live in the watershed, including seventeen metropolitan areas with more than 50,000 residents. The lake provides drinking water for about eleven million of these inhabitants.

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Yes! Lake Ontario offers fantastic swimming at many beaches. Not all beaches are 'public beaches', some are naturally occurring 'wild beaches' along Lake Ontario's shoreline. Local Health Units often test water quality at public beaches and lifeguards may supervise swimmers in designated swimming areas.

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Glacial-fed alpine lakes in the Rocky Mountains are among the clearest in the world. Fine rock dust, produced by massive glaciers rubbing against bedrock, stays suspended in the water, reflecting light and creating the turquoise colours that Moraine Lake and Lake Louise are known for.

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