Weekly exercises

Weekly Exercise for Water Chronicles 8

Name:

1. What are the effects of turbidity on the aquatic ecosystem?

2. What are the sources of lead, a toxic heavy metal in a city?

The Problem with Lead in Soil: https://www.youtube.com/watch?v=ZHh3jBMRoLo

3. See the graph below. List the water bodies of the Newark Bay (Newark Bay, Hackensack River, and Passaic River) from the highest electrical conductivity (EC) to the lowest electrical conductivity?

4. What is the relationship between EC and chloride concentration? Why do you think there is a significant difference in EC and chloride between the Passaic River and the Hackensack River?

5. List the water bodies of the Newark Bay (Newark Bay, Hackensack River, and Passaic River) from the highest ammonia concentration to the lowest ammonia concentration?

6. List the water bodies of the Newark Bay (Newark Bay, Hackensack River, and Passaic River) from the highest phosphate concentration to the lowest nitrate phosphate?

7. Why do you think water bodies of the Newark Bay Estuary show different concentrations of nutrients (ammonia and phosphate)?

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