Should I swim in a dirty lake?

Stay out of the water if The water looks cloudier than usual, is discolored, or smells bad. Cloudy water can be a warning that there are more germs in the water than normal. Discolored or smelly water could mean there is a harmful algal bloom (HAB) in the water.



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If there is scum or algae visible in the water, it won't be clean enough to swim in. There are also natural hazards to outdoor waters compared with pools, especially in the summer. Blue-green algae is a type of bacteria naturally found in lake ecosystems.

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Stay out of the water if Cloudy water can be a warning that there are more germs in the water than normal. Discolored or smelly water could mean there is a harmful algal bloom (HAB) in the water.

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One other thing to be aware of if you're swimming in a freshwater lake, especially in warmer climates: The Centers for Disease Control and Prevention says that swimmers in freshwater lakes should assume brain-eating amoeba are present, although actual cases of infection are extremely rare.

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Know the environment. Aside from unseen bacteria that may be lurking in the lapping water, other hazardous factors need to be taken into consideration. Some of these potentially harmful water factors are rip tides, swift water, string underwater currents, and unmarked drop-offs.

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Pools also tend to be much cleaner than natural lakes. This is because most pool owners take extra care to make sure the pool is sanitized, oxidized, and pH balanced on a regular basis. You're far less likely to pick up an infection from swimming in the local pool.

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Bacteria - Refrain from swimming after flooding or heavy rains. Unlike swimming pools, natural waters are not chlorinated or disinfected. The risk of bacterial infection increases after heavy rains due to hazardous matter washing into the lakes and streams.

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Typically, brown lakes are surrounded by forests or wetlands. Dense forests provide dark organic material that dissolves in lake water like a teabag. This dissolved organic material stains the water brown and shades the underwater world. Overall, brown water lakes tend to be light-limited.

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