1. Environmental Health Unit: Water Pollution Lesson
Objectives:
TSWBAT identify types, causes, dangers, preventing, and treating water pollution.
TSWBAT create solutions and actions to reduce water pollution in our building and at home.

2. Water Pollution
Water covers over 70% of the Earth's surface and is a very important resource for people and the environment. Water pollution affects drinking water, rivers, lakes and oceans all over the world. This consequently harms human health and the natural environment.
Today you will find out more about water pollution and what you can do to prevent it.

3. Causes of Pollution Sewage & wastewater:
Domestic households, industrial & agricultural practices
produce wastewater that can cause pollution of many lakes & rivers.

4. Causes of Pollution
Marine dumping (in parenthesis is how long is takes for that item to degrade):
Cardboard (2 wks.)
Newspaper (6 wks.)
Photodegradable packaging (6 wks.)
Foam (50 yrs.)
Styrofoam (80 yrs.)
Aluminum (200 yrs.)
Plastic packaging (400 yrs.)Glass (???)

5. Causes of Pollution Atmospheric deposition: Acid rain
Underground storage leaks:
Over time the steel corrodes and causes leakages, affecting surrounding soil and groundwater.

6. Causes of Pollution Global warming:
Increase in water temperature can result in the death of many aquatic organisms and disrupt many marine habitats

7. Causes of Pollution Eutrophication:
Environment becomes enriched with nutrients.
Marine habitats (such as lakes) can cause algal blooms.
Fertilizers run-off into nearby water causing an increase in nutrient levels.

8. Causes of Pollution Industrial waste –
Asbestos, Lead, Mercury, Nitrates, Phosphates, Sulphur, Oils, Petrochemicals
Oil pollution:
Oceans are polluted on a daily basis from oil spills, routine shipping, run-offs & dumping.
Oil spills make up 12% of the oil that enters the ocean.
The rest comes from shipping travel, drains & dumping.

9. What do you think??? (write a reaction on your notes outline)
Great Garbage Patch
What do you think??? (write a reaction on your notes outline)

10. Dangers of Pollution
Virtually all types of water pollution are harmful to the health of humans and animals.
Water pollution may not damage our health immediately but can be harmful after long term exposure.

11. Preventing Pollution Conserve water
turn off the tap when running water is not necessary
helps prevent water shortages & reduces amount of water needing treatment
Be careful about what you throw down your sink or toilet.
Don't throw paints, oils or other forms of litter down the drain.
Use environmentally household products

12. Preventing Pollution Don’t overuse pesticides and fertilizers
This will prevent runoffs of the material into nearby water sources.
Plants in your garden prevent fertilizer, pesticides & contaminated water from running off into nearby water sources.
Don't throw litter into rivers, lakes or oceans.
Help clean up any litter you see on beaches or in rivers and lakes, make sure it is safe to collect the litter and put it in a nearby bin

13. Great Idea!
/willandjada/

14. NOW IT’S YOUR TURN! Complete the worksheet for class credit.
Hand the completed worksheet to Mrs. Panaski by the end of class today or at the beginning of the next class meeting.