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DO NOW:

DO NOW:. What do you think of when you hear the term “pollution”?. Objectives: Identify types of pollution Compare point and non-point pollution Explain biological magnification. Pollution. I. Pollution. Any harmful material that enters the environment Pollutants may enter: Land

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DO NOW:

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  1. DO NOW: • What do you think of when you hear the term “pollution”?

  2. Objectives: Identify types of pollution Compare point and non-point pollution Explain biological magnification Pollution

  3. I. Pollution • Any harmful material that enters the environment • Pollutants may enter: • Land • Chemicals • Radiation • Trash – non-biodegradable

  4. 2) Air: • Smoke • Burning fossil fuels • Noise 3) Water • Chemicals • Oil • Pesticides & fertilizers • Heat

  5. II. 2 main categories of pollution:

  6. A. Point Pollution • Comes from a single source • Examples: Ramapough Mountain Indians Sue Ford Over Toxic Contamination BP Deepwater Horizon 2010

  7. B. Non-point Pollution • Comes from many different sources • Example:

  8. III. Pollutants may pose health risks: • Irritants – eyes, breathing passageways, skin • May cause diarrhea • Reproductive problems • Death

  9. IV. What happens when pollutants enter an organism? • Consider food chain:

  10. Many pollutants cannot be broken down by organisms • Get stored in fat • Over time, they build up in an organism – bioaccumulation • As pollutants pass up the food chain, they increase - biological magnification

  11. Effects on Humans • Humans have been warned to watch the amount of large predatory fish they eat • Why??

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