• Pond Water Contaminants

    Pond Water Contaminants

    There are many contaminants that can pollute your pond and threaten the wildlife within it:

    • Microorganisms – Microorganisms such as bacteria and viruses can be pathogenic and cause illness to aquatic life. Some algae release poisonous toxins which are dangerous to animals that enter the pond. Algae can also be a problem when there is too many of them. They often cover the surface of ponds, blocking sunlight from aquatic plants, they also use up the oxygen in the water so there is none left for fish.
    • Chemicals – Agricultural chemicals such as pesticides can be harmful to animals and plants in your pond. Contamination by fertilizers can also be problematic as they promote the growth of algae, causing the problems mentioned above. Industrial contaminants such as heavy metals are often toxic to aquatic life and can damage the functioning of pond habitats.
    • Suspended Particles – Particles such as soil and leaf debris can cause discolouration of pond water. They also block out the sunlight needed by aquatic plants for photosynthesis. Unwanted microorganisms are often attached to these particles, so if the particles are removed you can also reduce the amount of pathogens in your pond.

    What Can You Do?

    There are a number of ways you can reduce the level of contamination in your pond.

    • Reduce activities around the pond such as gardening. You could fence off the area to reduce the likelihood of contamination from animals and run-offs from garden activities.
    • Reduce activities in the pond such as paddling, washing and pet activities. By keeping people and animals out of the pond the risk of infection is reduced and the pond water quality will be maintained.
    • When constructing your pond, build a raised boarder around it to reduce the risk of contamination by pesticide and fertilizer run-offs.

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