Virtually every year, massive algae and cyanobacteria blooms occur in the waters of lakes and other water reservoirs.
The process of eutrophication, algae and cyanobacteria blooms results from the supply of atmospheric organic components such as nitrogen and phosphorus compounds via rivers.
These organisms bloom, fade away, sink to the bottom, and then decompose as long as there is access to oxygen.
When it is gone, they continue to decompose in anaerobic conditions.
While the algae themselves are not dangerous, cyanobacteria release hydrogen sulphide into the environment, which is harmful to organisms and is dangerous to the health of humans and animals.
Aesthetic considerations and unpleasant smell are one thing, but the danger to people and animals is more important.
