Description
Option #1: Water Quality PaperIn this laboratory exercise, you will learn about water pollution and how specific water-quality indicators impact both human health and the environment. You will also test water samples for the following parameters: pH, nitrates, phosphates, and fecal coliform bacteria.Complete all sections of the Water Quality laboratory exercise, in your Environmental Science Lab Kit from Hands-On Labs, Inc. Fill out all parts of the worksheet. It will not be necessary to submit your original worksheet for this assignment.In a Word document, discuss all parts of this lab activity. Your essay should include the answers to all the worksheet questions. Do not include the original questions. Your answers should be presented in flowing paragraph form. Be sure to include all data tables and graphs from this activity in your paper. Your paper should meet the following requirements:Be 3-4 pages in length (excluding tables, graphs, and other visuals, title page, or references list)Include 1-2 outside sourcesBe formatted according to the CSU-Global Guide to Writing APA (Links to an external site.).Option #2: Water Quality Videoimpact both human health and the environment. You will also test water samples for the following parameters: pH, nitrates, phosphates, and fecal coliform bacteria.Complete all sections of the Water Quality laboratory exercise, in your Environmental Science Lab Kit from Hands-On Labs, Inc. Fill out all parts of the worksheet. It will not be necessary to submit your original worksheet for this assignment.In a recorded video of approximately 5-10 minutes, discuss all parts of this lab activity. Your presentation should include the answers to all the worksheet questions. Be sure to show all data tables and graphs from this activity in your video. References and citations should be formatted according to the CSU-Global Guide to Writing APA (Links to an external site.). and be provided on a separate paper that you turn in. To submit your video itself, please upload it to the web (YouTube, for example) and provide the URL where it can be accessed. Please do not attempt to upload your video directly to the CSU-Global classroom.
BIO121L
Water Quality
Final Report
Student Name
EBENEZER AMPONSAH
Student ID
164227
Lesson
Water Quality
Institution
CSU-Global
Session
BIO121L – Figiel – Spring 2021 Section 2
Course
BIO121L
Instructor
Chester Figiel
Test Your Knowledge
1. Match each term with the best description.
Contamination from a clear, easily
definable source
Contamination from multiple
diffuse sources
The propagation of contaminants
through food webs
Nutrient enrichment leading to
algal blooms
Oxygen depletion resulting in fish
deaths
1
Nonpoint source pollution
2
Point source pollution
3
Biomagnification
4
Eutrophication
5
Hypoxia
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2. Identify each statement as true or false.
Nitrogen excess causes eutrophication in marine environments.
The presence of fecal coliform during water testing indicates contamination has occurred.
True
False
1
2
High phosphate levels in drinking water are
harmful to humans.
All strains of Escherichia coli are harmful to
humans.
Exploration
1. _____ is an example of point source pollution.
Power plant effluent
Lawn fertilizer runoff
Road salt runoff
All of the above
2. Nonpoint source pollution is easily monitored and regulated in developed nations.
True
False
3. A pH level between _____ is the ideal range for most aquatic organisms.
2.5 to 4.0
4.5 to 6.0
6.5 to 8.5
9.0 to 10.5
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4. Eutrophication results in _____.
animal death
algal blooms
hypoxia
All of the above
5. Nitrogen contamination negatively impacts both environmental and drinking water quality.
True
False
6. A positive fecal coliform bacteria test is an indicator that pathogenic species are present in the
water sample.
True
False
Exercise 1
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1. Why is it important to maintain water quality of environmental water sources?
1. Development of water bodies for future
2. Protection of available water bodies from pollution
3. To Prevent water disputes
4. Food security
5. For sustaining aquatic ecosystems
6. To meet human drinking water and sanitation needs
7. To protect the waterways
And so on…
Water is life.
Water is future oil.
Preservation and quality maintanence is of utmost priority.
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2. How do the test results compare for your tap water and bottled water samples. Explain which source you would
prefer to consume based on Data Table 2.
3. Of the four water tests performed in this exercise, which is the least important for determining if water is safe to
drink? Explain why.
The test of nitrate is the least important for determining if water is safe to drink because the presence of
nitrate shows the past pollution in water but now water isfis from pollution
The most important is that. Water is free from any disease causing bacteria so we can’t ignore test 4
coliform bacteria test
Test of PH pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in
the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl
ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator
of water that is changing chemically.so it becomes necessary to test PH
phosphate test is also important because too much phosphate can cause health problems, such as
kidney damage and osteoporosis. .
4. Did the water body sample have phosphate and/or nitrate levels that might put it at risk for eutrophication and
subsequent algal blooms? Explain your reasoning.
The water body had phosphate level of about 4ppm which puts it at risk for eutrophication and subsequent algal blooms.
Water bodies with phosphorous levels above those limits are prone to algal blooms. The water i tested contained 160 times
the amount of phosphatees.
5. List three potential sources of pollution in your water body sample based on the location recorded in Data Table 1.
The three potential sources of pollution in my water body sample based on the location recorded in data table 1 are, direct
discharge, agriculture runoff or human sewage system.
Data Table 1: Source of Water Samples
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Bottled Water
Source
Description
Tap Water
Source
Description
Water Body
Source
Description
Data Table 2: Test Results
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Bottled Water
Phosphate Level (ppm and interpretation)
Nitrate Level (ppm and interpretation)
pH and interpretation
Coliform (color and + or -)
Tap Water
Phosphate Level (ppm and interpretation)
Nitrate Level (ppm and interpretation)
pH and interpretation
Coliform (color and + or -)
Water Body Sample
Phosphate Level (ppm and interpretation)
Nitrate Level (ppm and interpretation)
pH and interpretation
Coliform (color and + or -)
Photo 1: Phosphate Test Results
No image or annotations
Photo 2: Nitrate Test Results
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No image or annotations
Photo 3: pH Test Results
No image or annotations
Photo 4: Coliform Test Results
No image or annotations
Competency Review
1. Water quality is a measure of the suitability of water for a particular use based on _____
characteristics.
biological
chemical
physical
All of the above
2. Nonpoint source pollution originates from factory effluent pipes.
True
False
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3. Clams and mussels cannot survive long-term in waters that are below pH _____.
6.0
7.0
8.0
9.0
4. Eutrophication occurs when nitrogen and phosphorus are limited.
True
False
5. High levels of _____ in formula may result in methemoglobinemia in human infants.
fecal coliform bacteria
nitrates
phosphates
All of the above
6. Water is tested for _____ to determine if contamination by animal waste has occurred.
fecal coliform bacteria
pH
phosphorus
All of the above
7. A water sample with a pH of _____ is considered good quality for drinking.
2
7
11
All of the above
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8. A water sample should be quality tested as soon as possible after it is collected.
True
False
9. Environmental sources associated with a positive fecal coliform test include _____.
animal waste runoff
damage to sewage infrastructure
flooding
All of the above
Extension Questions
1. An aquarium keeper exchanges 50% of the tank water each month with fresh tap water from a municipal water
supply. Within 24 hours after each exchange, the aquarium experiences an algal bloom. Apply your knowledge of
water quality to explain why this could be occurring.
The algal bloom are the excessive growth and abundance of algae and other photosynthetic organisms
in the water.
These algal blooms are caused by excessive amounts of nutrients such as nitrogen and phosphorus in
the water. So if the exchange of water in the aquarium from municipal water supply results in algal bloom,
it means the water supply is contaminated by excessive nutrients pollution from sources like fertilizers
runoff.
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