1. Demonstrating Water Pollution
What kinds of things pollute the water?

2. Types of pollution – what are they?
Biodegradable wastes
Nutrients
Thermal
Sediment
Chemical
Radioactive
Medicinal
Microbiological

3. Basically – three groups
Hydrocarbons
Dissolved substances
Solids
Test for:
TDS=Total Dissolved Solids
pH= how much hydrogen is in the water

4. Fill in the chart below:
TDS pH
Observations
Plain Water
Water & Food
Water & Dirt
Water & All pollutants

5. Pollutant Removal How should these pollutants be removed? Filter
Add bleach
Add chemicals

6. All pollutants together
Describe what you see at the following times:
Initial observations
3 min. observations
5 min. observations
Final TDS= ______________
Final pH= ______________

7. Removal of pollutants How would you remove the pollutants now?
Should it be filtered?
Should it have bleach added to it?
Should it have other chemicals added to it?
If you did this – would the resulting water be safe to drink?
If the Assiniboine River looked like this… what could we do to it? What are other alternatives?