Aquatic pollution can take different shapes and sizes.
The impact can take place on biodiversity and society and human health.
It is important to assess the breadth, the depth, and the persistence of the aquatic pollution to gauge the significance of the issue.
What is it?
Pollutants entering a river can be washed away to sea, or degraded by microorganisms present in the river. Excess pollution in a river can damage the plant and animal life present in the river by reducing the water’s oxygen content.
Here are five sources of anthropogenic (caused by humans) pollution that affect marine and freshwater ecosystems:
Different pollutants affect the aquatic environment in different ways. While at low concentrations, many pollutants (e.g. organic materials, Nitrogen and Phosphorous) may be beneficial, they can adversely affect ecosystems at high levels. Excess nitrate can be particularly harmful to babies.
Many of the toxic pollutants in effluents are synthetic, and therefore do not biodegrade naturally.
The effects of physical pollution on the ecology of a river system can be complex, affecting the different species’ feeding and breeding habits.
Also, biological pollutants can spread disease through water, and also disrupt the ecology.