Investigating How Various Activities Around the River Can Affect the Water Quality

Investigating How Various Activities Around the River Can Affect the Water Quality

Length: 1318 words (3.8 double-spaced pages)

Rating: Excellent

Open Document

Essay Preview

More ↓
Investigating How Various Activities Around the River Can Affect the Water Quality


The aim of this field experiment is to find out how various activities
around the river can affect the water quality such as the clearness of
the water. In order to carry out this field experiment, we used data
loggers the black and white disc, beaker, filter paper, ping-pong
ball, raffia string and bamboo sticks.

For the experiment to test for the temperature of the river water, we
used the data logger which was provided for us. Firstly, we connect
TMP (T/C – K °C) to the MultiLog’s input channel I/O-1.Then we
switched the data logger on and make sure the MultiLog displays
“Ready”. Then we click PORT until “INPUT-1” is displayed. After which,
we click SENSOR until “Temperature” is displayed and RANGE until
“TC-K°C” is displayed. Click RATE until “Every Sec” is displayed.
Click SAMPLES until “Samples = 2000”is displayed. Click TRIGGER until
“Not Active” is displayed. After that, we place probe in the water and
click the run/stop button ad wait for the reading to stabilize.
Finally, we take the reading in degree Celsius and click the run/stop
button to stop.

As for the experiment to test for the pH level of the water, we
continued to use the data logger. Firstly, we connected the connecting
cable from MultiLog’s input I/O-1 to the pH (0÷14 pH) adaptor. Then
we connected the pH probe to the pH (0÷14 pH) adaptor, and pressed ON.
When the MultiLog displayed ‘Ready’, we clicked PORT until “INPUT-1”
was displayed. Then we clicked SENSOR until ‘pH’ was displayed.
After which, we clicked RANGE until (0÷14 pH) was displayed, and
clicked RATE until “Every Sec” was displayed. After that, we clicked
SAMPLES until “Samples = 2000” was displayed, and clicked TRIGGER
until “Not Active” was displayed. We then removed the “Electrode
Storage Water” bottle from the end of the pH probe and placed the
probe into our river water sample. Then we clicked the run/stop
button and obtained our readings.

How to Cite this Page

MLA Citation:
"Investigating How Various Activities Around the River Can Affect the Water Quality." 123HelpMe.com. 19 Sep 2019
    <https://www.123helpme.com/view.asp?id=141073>.

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Investigating the Cause of Global Warming Essay

- Investigating the Cause of Global Warming Many people disagree on the issue concerning global warming. Some believe that human activities, various forms of polluting, are the main cause of global warming. Others think that not only have humans not affected the planet by any significant amount, but that not much global warming has even occurred. Many scientists think that pollution is the cause of global warming and the greenhouse effect. There is a lot of evidence to support this theory. In the United States alone, almost 15,000 pounds of greenhouse gases are emitted per person each year....   [tags: Global Warming Climate Change]

Research Papers
867 words (2.5 pages)

Multimodal Storytelling Affect The Writing Experience / Outcomes Essays

- Since the purpose of my study is to examine how multimodal storytelling affect the writing experience/outcomes of ELLs in a US college Intensive English Program (IEP) and how these multimodal practices implemented by these ELLs affect their identity construction while living and studying in a foreign culture, I am interested in finding out the writing difficulties ELLs have experienced and the non-traditional strategies and interventions that have been implemented on them. In addition, I am going to review literature which studied the application of multimodal storytelling in a variety of settings and spaces such as at school, at home, and in the community....   [tags: English language, Second language, Learning]

Research Papers
1208 words (3.5 pages)

Investigating the Best Temperatures betweem Calf Trypsin and Fugal Trypsin

- Investigating the Best Temperatures betweem Calf Trypsin and Fugal Trypsin PROBLEM BEING INVESTIGATED BACKGROUND Trypsin is an enzyme so to be able to conduct a suitable plan, this idea will help me to predict the best temperature that can be achieved on its activities in different conditions. “Collins Advanced Science Biology defines an enzyme as biological catalysts, speeding up reactions that would otherwise happen too slowly to be any use to the organism, that is it has catalytic properties, in other words they alter the rate of reaction without themselves undergoing a permanent change....   [tags: Papers]

Free Essays
1011 words (2.9 pages)

Investigating the Various Activities By Which Individuals Enhance Their Knowledge

- The knowledge concept in the knowledge management literature is the concept of knowledge itself. Though knowledge in its different linguistic variants is one of the most commonly used words, it has been particularly unruly in lending itself to scientific inquiry (Demarest 1997). It has had a significant presence in the philosophical debate since the pre Socratic era (Davenport & Prusak 2000). However, as knowledge is being identified as a significant resource that promises sustained competitive advantage for organisations by an increasing number of theorist and practitioners, there is a rising interest in defining knowledge in more concrete forms to enable a more systematic study....   [tags: Research Proposal]

Research Papers
712 words (2 pages)

Investigating the Role of Micro-Finance in Female Empowerment, Kawangware Division, Nairobi County

- 1 INTRODUCTION 1.1 Background information Poverty is a universal phenomenon, that is found virtually everywhere and affect a large number of people in the globe. To this effect Thirlwall (2003:87) contributing to the poverty literature, says that ‘in poverty, there is feeling of powerlessness, vulnerability and fear because the poor is not free, he is exposed to greater risks and living on the margin of subsistence.’ That is to say, the poor have little or no significant say in the society; they are looked upon with contempt....   [tags: fighting poverty, development analysis]

Research Papers
1513 words (4.3 pages)

Essay about Various Subjects

- Cure panic attacks and stop living in fear. Since this disorder can occur without warning, it can take a toll on those afflicted, preventing them from living a healthy, productive lifestyle. Common symptoms include feeling weak, faint, or dizzy; tingling or numbness in the hands; sweating or chills; chest pains including "racing" heart and difficulty in breathing; and a sense of losing control. Anti-anxiety medicines like Xanax, Klonopin, and Ativan are some of the medications prescribed at the onset of the treatment for panic attacks....   [tags: Various]

Research Papers
1918 words (5.5 pages)

Essay on Various Definitions

- Ultrasonic sound- The PING))) ultrasonic sensors operate using ultrasonic sound. The sensor emits an ultrasonic chip, which is reflected off of and object. The sensor times how long it takes for the sensor to emit the chirp, and have it received off the object as an echo. Using the equation of the speed of sound in air, the sensor monitors distance. The sensor operates using a 40kHz chirp. This frequency falls in the sound range commonly used by animals for communication. Frequencies that are much higher, for example 1-20 mHz are used more commonly for medical imaging....   [tags: Various]

Research Papers
1518 words (4.3 pages)

Academic Year Activities Essay

- Oasis 1. Introduction 1.1. Purpose 1.2. Scope 1.3. Definition, Acronyms and Abbreviation 1.4. Overview 2. Description 2.1. User characteristics 2.2. Assumption and Dependencies 2.3. Functionality 1. Introduction Department academic year activates and programs scheduled and display department calendar, that calendar indicate upcoming programs and various events information inform to student and staff members most helpful them. In the department catalog our course curriculum course adjective and motivations listed, the curriculum student can download in our website....   [tags: Events, Activities]

Research Papers
712 words (2 pages)

Essay on Investigating The Affect of Concentration on The Rate of Reaction

- Investigating The Affect of Concentration on The Rate of Reaction Aim- To find out if changing the concentration of the hydrochloric acid affects the volume of gas released in 5 minutes. Background Information The rate of reaction depends on four things:- 1. Temperature 2. Concentration 3. Catalyst 4. Size of particles/surface area The Collision Theory The collision theory explains the rates of reaction, the rate of reaction depends on how often and how hard the reacting particles collide with each other....   [tags: GCSE Chemistry Coursework Investigation]

Free Essays
2090 words (6 pages)

Essay on Investigating Factors that Affect the Swinging Of a Pendulum

- Investigating Factors that Affect the Swinging Of a Pendulum Aim Our aim is to find out whether changing the variables of the swinging pendulum affects the speed. Preliminary Work In order to find out which variable/s affect the swinging of a pendulum, I need to test all the variables available. There are three variables we will be investigating: * The length of the string * The mass of the pendulum * The angle from which the pendulum is swung For each experiment, I will change the length/mass/angle five times, and repeat each length/mass/angle just once....   [tags: Papers]

Free Essays
1958 words (5.6 pages)



For the last usage of the data logger, it was used to measure the
amount of dissolved oxygen content in water. Firstly, we connected the
connecting cable from MultiLog’s input I/O-1 to the D02 adaptor. Then
connect D02 probe to the Oxygen Adaptor (0 to 25% 02 0 to 125% Sat).
We referred to the instruction sheet that comes together with the
oxygen adaptor to assemble the probe and filled it with electrolyte.
Then we switched it on and make sure the MultLog displays “Ready”. We
click PORT until “INPUT -1” is displayed. Click SENSOR until “Oxygen
D02” is displayed. Click RANGE until “0 ÷ 125%” is displayed. Click
RATE until “Every SEC” is displayed. Click SAMPLES until “Samples =
2000” is displayed. Click TRIGGER until “Not Active” is displayed.
Click the run/stop and wait for the reading to stabilize. Finally, we
took the reading (in %) and click the run/stop button to stop.

To test for the turbidity of the water, we took a beaker to collect
the water from the river and then we used a disc which was painted
white and black and put it beneath the beaker to see if it was clear.
If the black and white disc could be seen from the top view, the water
is clear. Thus, since we could clearly see the disc from above, and
when we placed the beaker of water under the strong sunlight, very
little particles were seen floating in the water. Thus, we can
conclude that the turbidity of the water is clear. We also put the
water under strong sunlight to check if there were any small
particles, which can be seen, suspended in the water.

Finally, for the last test for the velocity of the water, we used a
ping-pong ball and stick it to a one-metre raffia string. We placed it
on the surface of the water gently and allowed the flow of the water
to carry it. When the raffia string becomes taut, we stopped the
stopwatch and record the timing taken for the ping-pong ball to travel
one metre. Though, this experiment failed for the Pasar Ris group, as
the water does not seems to flow at all and the ping-pong ball did not
move. We tried the second time and a breeze blew causing the ping-pong
ball to move together in the direction of the breeze. We tried the
third and last time and a speedboat sped past, causing the ping-pong
ball to travel yet together with it.

Quality of water

Riverbank

Center of river(surface)

Center of river (bottom)

Turbidity

Fine particles suspended

Small black particles

Clear with little particles

PH Values

6.7

8.37

7.59

Dissolved oxygen

77%

80%

70%

Velocity

13.961 s/m

14.243 s/m

Nil

Temperature

26°C

24°C

26°C

Activities

Littering by visitors, vehicles and train nearby

Water skiing, breeze, speed boat and construction site

Nil

Figure 1. Table of water qualities in Kallang River

For the riverbank, fine particles could be seen suspending in the
water due to the dust from the train and vehicles. Vehicles by the
road side especially lorries produce exhaust fumes. There are small
particles and dust contained in the fumes and when they were blown by
wind, the particles tend to enter the river water. Thus, fine
particles were suspended in the water by the riverbank. Due to the
construction site and the speedboats in the centre of the river, these
causes tiny black particles to enter the river water. For the bottom
of the centre of the river, most of the particles in the water tend to
float up to the surface and thus, the water at the bottom of the
centre of the river is clean and have little visible particles. If the
particles did not float up, most probably it will sink under the sand
and the sand would weigh it down.

Because of the exhaust fumes from the vehicles and litters left by the
visitors at the riverbank, it causes the water by the riverbank to
turn a little acidic. Due to the wastewater discharged by the
speedboat and the construction site, it provides alkalinity to the
river water at the surface of the water at the center. The river water
at the bottom of the center of the river is slightly alkaline, as the
waste from the construction site might have sunk down and mixed with
the river water, causing the alkalinity. It is not as alkaline as the
surface as the waste particles tend to float and seldom sink.

The amount of dissolved oxygen in the water at the riverbank is much
more than the rest of the places is due to the fact that the water is
shallow and more oxygen can dissolve into it easily. The surface has
much more amount of dissolved oxygen than the bottom of the center of
the river is because the oxygen dissolved first into the surface and
then the oxygen molecules will slowly mix with the bottom.

The clarity of the water at the riverbank is much better than the one
in the center is due to the speed of the water traveling. The faster
it travels, the clearer the water. The dirty particles in the water
tend to obstruct the smooth flowing of the water and when the
particles clog together, the water will be unclear.

Quality of water

River mouth

Center of length of river

Turbidity

Fine particles suspended with dead fishes

Small particles

PH Values

5.38

9.23

Dissolved oxygen

80.2%

70.9%

Velocity

Nil

Nil

Temperature

24°C

17°C

Activities

Speed boat, litters

Construction site

Figure 2. Table of water qualities in Pasir Ris River

The water at the river mouth has fine particles suspended in the
water. There are even dead fishes seen floating in the river water.
The fine particles might be due to the littering by visitors or the
oil spill by the speedboat. However, only small particles were seen in
the water at the upper stream of the river. The small particles might
be due to the minor construction site situated at the source of the
river.

The acidity of the river water at the mouth might be due to the
littering and the oil spill from the speedboat too. Thus, the acidity
of the river is quite high. As for the alkalinity in the water at the
upper stream, the water is very alkaline as it might be due to the
construction site at an even upper stream. The wastewater discharged
at the construction site flowed down and mixed with the water and
thus, the alkalinity.

There were more dissolved oxygen at the river mouth because it is more
open aired compared to the upper stream and lesser organisms which
uses the dissolved oxygen. The lesser amount of dissolved oxygen was
because of the fact that there were more organisms living at the upper
stream and the organisms used a lot of the dissolved oxygen to
survive.

There was not much movement of the water in fact. The river water
moved due to the breeze blowing and the speedboat traveling. When we
left the ping-pong ball at the surface of the water, it did not move
and only moved slightly at a speed of 5m/h when the breeze blew. Thus,
we were unable to carry out the experiment for the velocity of the
river.

Overall, I think that the this experiment is quite well-done except
for the fact that the velocity of the river water at Pasar Ris could
not be carried out because of the stagnancy of the water and the
continuous blowing of breeze and speedboats whizzing past. As for the
Kallang River, the velocity of the water might be also due to the wind
or other factors. Thus, I think that the experiment for the velocity
of the river has failed. And the pH value of the rivers might be due
to other factors such as acidity of the rain, which causes it to be
acidic or alkaline. The turbidity of the river can be further improved
by taking the river water samples and then test it for even
microorganisms. We should have used a microscope and observed the
microorganisms and then evaporate the river water to see if there are
more micro organisms in the water so we can be sure if the water is
really clear.
Return to 123HelpMe.com