Water Environmental Issue

Introduction to water environmental issue:

Water environmental issue determines the pollution occurred in the environment. The pollution in the environment causes due to the non dissolved solvents. The impurities in the water are dissolved in the water and some of the solvent are suspended in the water. The impurities like clay particles, micro organisms and various algae and fungi are found in the water.

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Water environmental issue:


The water environment contains the biotic and also abiotic components. The water environmental issues contain the following factors.

1)  Effects on the aquatic ecosystem

2)  Eutrophication

3)  Biological magnification


Effect on aquatic ecosystem:


The inorganic and organic substances enters into the aquatic ecosystems reduce the oxygen content.
Sufficient amount of oxygen is required for aquatic organisms.
Aquatic system is affected due to environmental issues.
More oxygen is used up in decomposition of organic waste.
The measurement of the amount of oxygen required for decomposition of biodegradable substances.
The water includes the biodegradable and also non biodegradable pollutants.
Thus, the pollution of water increases the amount of dissolved oxygen decreases.
Moreover some toxic pollutants directly kill some organisms.

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Eutrophication:


Eutrophication means an easy availability of nutrients in an aquatic habitat.
The habitat in the ecosystem is affected due to the water environmental issue.
The inorganic and organic substances are added to water, the availability of nutrients increases.
When sewage, fertilizers and detergents are added to water, the growth of the micro organisms and aquatic vegetation is stimulated.
Algae and blue green- algae are completely spread over the entire water surface and generate a foul smell and toxic taste- spoiling substances.
A large number of fishes are died in some times.
With the passage of time, the water reservoirs become shallow and ultimately get filled up.
In this way the lifespan of the anthropogenic water reservoirs is limited.