Part I: Fish Kill Data Table I: White River Water Temperature and Rainfall by Month May June July Aug Sept Oct Nov Dec Jan Feb Mar Apr 15.0 17.0 Water 18.1 19.5 23.0 23.5 24.0 20.5 16.5 14.0 12.5 11.0 Temp (°C) Rainfall 29.5 33.1 19.5 17.5 15.0 (mm) 14.5 17.2 14.1 16.9 12.7 13.3 17.2 *Data taken by Anderson Publicly Owned Treatment Works!
Based on a grade 11 chemistry student, answer the following questions:
Use the data below to evaluate whether nitrates or phosphates could have been involved in the fish kill.
- Which month had the highest river water temperature?
2. Which month had the lowest river water temperature?
3. How would the temperature of the water likely affect the solubility of dissolved solid solutes?
4. Which month had the most rainfall?
5. Which month had the least rainfall?
6. In which months would you expect to have more runoff from the fields to the river?
7. In which months would you expect more dissolved solutes in the water? Explain.
8. The fish kill occurred in December.
a. What was the average water temperature and rainfall for November and December?
b. What would you expect farmland to look like during this month?
c. Would you expect much fertilizer runoff during these months? Why?
9. How do nitrates and phosphates generally cause fish kills? (Look back at your previous activities.)
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