Which of the following gives smell to water. Spirochetes E coli Pox Algae
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these items is necessary and provides an aesthetically ... Escherichia coli gastroenteritis (see gastroenteritis). Food poisoning. Botulism.
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Algae like cyanophycean members can cause a foul smell to the water.
- The excessive growth of certain Cyanobacteria(blue-green algae) in water bodies leads to harmful algal bloom.
- An algal bloom is the result of excessive fertilisers runoff from farms, draining of Industrial sewages etc. to the water sources.
- They are capable of secreting cyanotoxins, lethal to aquatic life.
- The unpleasant earthy or muddy odour is the indication of the presence of cyanotoxins in the water bodies.
- Cyanotoxin makes the drinking water unpalatable.
- The common cyanotoxins associated with this bad taste and odour episodes are geosmin and 2-methylisoborneol(MIB).
- Certain cyanotoxins like microcystin, saxitoxin, anatoxin etc. even cause human illness and respiratory disorders.
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