more about pollution
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More About Pollution. Done by: Tin Wei Heng. What is pollution?. 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 are bio indicators. - PowerPoint PPT PresentationTRANSCRIPT
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.