Lakes can be affected by pollution from various sources such as agricultural runoff, urban development, and recreational activities. High levels of bacteria, harmful algae blooms, and pollutants in the water can pose health risks to swimmers.
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Summary: Freshwater bacteria are at the hub of biogeochemical cycles and control water quality in lakes.
Look for signs of poor water quality, such as algal blooms and dirty or turbid water. Do not swim in water that smells like rotten eggs or sewage. Avoid swimming near pipes that drain into lakes or streams.
Blue Lake, New ZealandThe Blue Lake is the clearest lake in the world. New Zealand is well-known for its natural beauty, with mountainous terrains surrounding crystal clear lakes whenever you hop out of the city. But the country is also famous for having the clearest lake in the world!
Look for signs of poor water quality, such as algal blooms and dirty or turbid water. Do not swim in water that smells like rotten eggs or sewage. Avoid swimming near pipes that drain into lakes or streams.