More About PollutionDone by: Tin Wei Heng

• Pollution is the presence or introduction of a substance or thing into an environment. This substance is harmful to that environment and can upset that environment and its ecosystem

WHAT IS POLLUTION?

• Bioindicators are species used to monitor the health of an environment or ecosystem

• Bio indicators include both plants and animals.• Plants that are bio indicators include:mosses,

lichen,tree bark, bark pockets, tree rings ,leaves and fungi.

• An increase or decrease in animal population can also be used as bio indicators.

WHAT ARE BIO INDICATORS

Bioamplification

• Bioamplification is the increase in concentration of a substance,such as pesticide, that occurs in a food chain as a consequence of:

1.Persistence(cant be broken down by environmental proccesses2.Food Chain energetics3.Low rate of internal degradation• Substances in bioamplification,such as pesticides,can

harm animals in an ecosystem by polluting their environment

Bioaccumulation

• Bioaccumulation refers to the accumulation of substances, such as pesticides, or other organic chemicals in an organism

• Bio accumulation occurs when an organism absorbs a toxic substance more than it loses that substance.

Importance of minimizing pollution

• By minimizing pollution:1.Ecosystems around the world will be normal and will not be polluted2.Many animals that are vital to the world’s ecosystem will not dwindle3.