Iran's Lake Urmia turns red
The Lake Urmia in Iran's West Azarbaijan province has turned red as the result of an environmental phenomenon known as the "red tide." Soap-like foam substance produced by algae started to redden Orumieh from the East Azarbaijan coast and gradually covered the whole lake. The "red tide" is actually the result of an algal bloom, an event in which marine or fresh water algae accumulate rapidly in the water. The effect of excessive algae on fish can be lethal. It produces oxygen radicals which can damage fish gills, possibly leading to ...
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