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Life orientation

Grade 6

Healthy lifestyle

Module 2

Environmental health problems and action

Air pollution is one of those invisible enemies that have a detrimental affect on us every day. It is so much part of our lives that we don’t even realise that we live in a town or city over which there is always a cloud of smoke. A number of projects are under way to try to combat the problem. Each one of us can also do our little bit to help so that we don’t make the environment in which we live unbearable for posterity.

Activity 1:

To read a newspaper report and answer questions

[lo 1.2]

Read the following translation of a newspaper report ( Die Burger, 10 April, 2003) attentively and then answer the questions that follow:

Quality of Cape Town’s air has improved

Cape Town – The quality of the air in the mother city largely complies with international guidelines, said the city leaders, who are having to deal with allegations of large-scale air pollution in the metropole.

Mr Hans Linde, the town council’s manager of air pollution control, said that the quality of the air in the metropole has improved in the short term in recent years.

However, from March to September the number of particles and also the sulphur dioxide in the air often exceed the permissible levels owing to inversion conditions.

In such climatic conditions a brown haze hangs over the city. It is caused amongst other things by the exhaust fumes of motor vehicles.

Linde’s comments follow on the news that the quality of water in the Diep River near Vissershok and the quality of the air in Morning Star are currently being tested as a result of allegations of air pollution in the area. Some of the residents fear that they could be poisoned if something is not done about the pollution.

Mr Gerry Kuhn, an environmental engineer who has studied the quality of the air in the area, said that residents are exposed inter alia to large amounts of mercury, arsenic and aluminium.

Groundwork, an environmental pressure group, said that the aluminium levels in the air are 3 000 times the permissible level.

According to Kuhn’s study, the levels of 30 of the 33 poisonous elements (including mercury) are extremely high. However, the source of the pollution is still unknown.

According to the World Health Organisation, mercury poisoning can cause kidney problems and damage to the nervous system, amongst other things.

The incinerator for medical waste at Vissershok might be a cause of the pollution, said Kuhn.

Apart from the incinerator there are two dumpsites, an oil recycling plant and a brick-kiln in the area.

The Vissershok site is next to the N7 near the Caltex refinery, Table View and Morning Star. The site has been used as a dumpsite since the 1970s.

The lease of the existing Sanu-med incinerator was granted in March 1998.

Dr Ivan Toms, Cape Town’s medical officer, said that a scientific investigation in this regard could take up to six months.

According to Mr Ravi Pillay of the division of air quality control of the department of environmental affairs, the new legislation regarding air quality will be made available for comment this month.

Clearing-up operations due to air pollution often cost millions of rand.

jbontuy@dieburger.com

Answer the following questions:

  1. Which city in South Africa is the mother city?
  2. What does “metropole” mean? (Look up the meaning in a dictionary.)

3. Which poisonous gases or elements are mentioned in the report?

  1. What is meant by “inversion conditions”?
  2. In your opinion, apart from the exhaust fumes of motor vehicles, what could also contribute to the bigger cloud of smoke from March to September?

6. What type of pollution, other than air pollution, is also mentioned here?

7. What illnesses can be caused by mercury poisoning?

8. Name sources of pollution near Vissershok.

9. What happens to medical waste?

10. What threats does medical waste pose?

Activity 2:

To draw a map indicating sources of pollution

[lo 1.2]

Draw a map of the area around your school or house. Identify all possible sources of pollution in the area. Use a map, a road map or a municipal map of the environment, if possible.

Every individual can combat air pollution. It is not only large factories that should guard against air pollution. Every child can be taught from a young age how to avoid polluting the air.

Use the table on the next page to add to the list of household materials or common household practices that promote different types of pollution. Also think about how this can be curbed.

Household practice Type of pollution Environment-friendly solution
Use of plastic shopping bags LitteringThe environment is polluted as the bags are not biodegradable Use baskets or paper bags for shopping

Assessment

Learning outcomes(LOs)
LO 1
HEALTH PROMOTIONThe learner will be able to make informed decisions regarding personal, community and environmental health.
Assessment standards (ASs)
We know this when the learner:
1.1 interprets food labels and critically discusses health effects of listed ingredients;
1.2 participates in a problem-solving activity to address an environmental health issue to formulate environmentally sound choices and/or actions;
1.3 explains causes of communicable diseases (including HIV/AIDS) and available cures, and evaluates prevention strategies, in relation to community norms and personal values;
1.4 identifies different forms of abuse and suggests strategies to deal with them.

Questions & Answers

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
Abhi
how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
hmm
Abhi
is it a question of log
Abhi
🤔.
Abhi
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Life orientation grade 6. OpenStax CNX. Sep 07, 2009 Download for free at http://cnx.org/content/col11003/1.1
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