<< Chapter < Page Chapter >> Page >

Lewensoriëntering

Graad 6

‘n gesonde leefwyse

Module 2

Omgewingsgesondheidsprobleme en optrede

Lugbesoedeling is een van daardie onsigbare vyande wat daagliks ‘n nadelige uitwerking op ons het. Dit is so ‘n deel van ons lewe dat ons nie meer agterkom dat ons in ‘n dorp of stad lewe waar daar altyd ‘n rookwolk oor ons koppe hang nie. Daar is reeds projekte aan die gang om die probleem te probeer bekamp. Ons kan ook elkeen ons beskeie deel doen om te help dat ons nie die omgewing waarin ons lewe vir die nageslagte onleefbaar maak nie.

Aktiwiteit 1:

Om vrae te beantwoord n.a.v. ‘n koerantberig

[lu 1.2]

Lees die onderstaande koerantberig ( Die Burger, 10 April, 2003) met aandag deur en antwoord dan die vrae daaroor.

Kaap se luggehalte het verbeter

Kaapstad – Die luggehalte in die Moederstad voldoen meestal aan die internasionale riglyne, het die stadsleiers gesê wat nou moet bontstaan oor bewerings van die grootskaalse lugbesoedeling in die metropool.

Mnr. Hans Linde, bestuurder van die lugbesoedelingsbeheer van die stadsraad, het gesê dat die luggehalte in die metropool die afgelope jaar op die korttermyn verbeter het.

Van Maart tot September oorskry die aantal partikels en ook die swaweldioksied in die lug egter dikwels die toelaatbare vlakke weens inversie-toestande.

In sulke klimaattoestande hang daar dan ‘n bruin newel oor die stad. Dit word onder meer deur voertuiguitlaatgasse veroorsaak.

Linde se kommentaar volg op die nuus dat die watergehalte in die Dieprivier naby Vissershok en die luggehalte in Morning Star tans getoets word na bewerings van lugbesoedeling in die gebied. Van die inwoners vrees dat hulle kan vergiftig word as daar nie ‘n plan beraam word met die besoedelings nie.

Mnr. Gerry Kuhn, ‘n omgewingsingenieur wat die luggehalte in die gebied bestudeer het, het gesê inwoners word onder meer aan groot hoeveelhede kwik, loodarseen en aluminium blootgestel.

Groundwork, ‘n omgewingsdrukgroep, het gesê die aluminiumvlakke in die lug is hier 3 000 keer die toelaatbare vlak.

Luidens Kuhn se studie is die vlakke van 30 van die 33 giftige elemente (waaronder kwik) hier besonder hoog. Die bron(ne) van die besoedeling is egter nog onbekend.

Kwikvergiftiging kan volgens die Wêreldgesondheidsorganisasie onder meer nierkwale en skade aan die senustelsel veroorsaak.

Die verbrandingsoond vir die mediese afval by Vissershok kan ‘n moontlike oorsaak van die besoedeling wees, het Kuhn gesê.

Buiten die oond is daar twee stortingsterreine, ‘n olieherwinningsaanleg en ‘n steenoond in die gebied.

Die Vissershok-terrein lê langs die N7 naby die Caltex-raffinadery, Table View en Morning Star. Die terrein word sedert die 1970’s as stortingsplek gebruik.

Die huurkontrak vir die huidige Sanu-med verbrandingsoond hier is in Maart 1998 toegeken.

Volgens dr. Ivan Toms, gesondheidshoof van Kaapstad, kan ‘n wetenskaplike ondersoek hierna tot ses maande duur.

Volgens mnr. Ravi Pillay van die departement van omgewingsake se afdeling oor luggehaltebeheer word die nuwe luggehaltewetgewing einde vandeesmaand vir kommentaar uitgereik.

Opruimingswerk weens lugbesoedeling kos dikwels miljoene rande.

jbontuy@dieburger.com

Beantwoord die volgende vrae:

  1. Watter stad in Suid-Afrika is die Moederstad?
  1. Wat beteken “metropool”? (Soek die betekenis op in ‘n verklarende woordeboek)

3. Van watter giftige gasse of elemente word in die berig gepraat?

  1. Wat is “inversie-toestande”?
  1. Wat dink jy kan, buiten die voertuiguitlaatgasse, ook bydra tot die groter rookwolk vanaf Maart tot September?

6. Watter ander soort besoedeling behalwe lugbesoedeling word ook hier genoem?

7. Watter siektetoestande kan deur kwikvergiftiging veroorsaak word?

8. Noem besoedelingsbronne naby Vissershok:

9. Wat word met mediese afval gedoen?

10. Watter gevare hou mediese afval in?

Aktiwiteit 2:

Om ‘n kaart te teken van die gebied rondom jou huis of skool

[lu 1.2]

Maak ‘n kaart van die omgewing rondom jou skool of huis soos die een wat die ligging van Vissershok (in die Burger-berig) aandui. Identifiseer alle moontlike besoedelingsbronne in die omgewing. Gebruik ‘n landkaart, ‘n padkaart of ‘n munisipale gebiedskaart van die omgewing, indien moontlik.

Lugbesoedeling kan deur elke individu bekamp word. Dit is nie net groot fabrieke wat moet waak teen lugbesoedeling nie. Elke kind kan ook van kleins af geleer word hoe om lugbesoedeling te vermy.

Gebruik die tabel op die volgende bladsy en vul die ‘n lys van huishoudelike middels of alledaagse huishoudelike gebruike wat verskillende besoedelings bevorder, aan. Dink ook hoe ‘n mens dit kan bekamp.

Huishoudelike aksie Tipe besoedeling Omgewingsvriendelike oplossing
Gebruik van plastiek inkopiesakke RommelstrooiOmgewingsbesoedeling, aangesien die sakke nie bio-afbreekbaar is nie Maak gebruik van mandjies of papiersakke vir inkope

Assessering

Leeruitkomstes(LUs)
LU 1
LUISTERDie leerder is in staat om vir inligting en genot te luister en gepas en krities binne ’n wye verskeidenheid situasies te reageer.
Assesseringstandaarde(ASe)
Dit is duidelik wanneer die leerder:
1.2 mondelinge tekste verstaan;
1.3 vir spesifieke inligting luister;
1.4 aandagtig luister tydens ‘n bespreking.
Leeruitkomstes(LUs)
LU 1
LUISTERDie leerder is in staat om vir inligting en genot te luister en gepas en krities binne ’n wye verskeidenheid situasies te reageer.
Assesseringstandaarde(ASe)
Dit is duidelik wanneer die leerder:
1.2 mondelinge tekste verstaan;
1.3 vir spesifieke inligting luister;
1.4 aandagtig luister tydens ‘n bespreking.

Questions & Answers

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
salma
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
I rally confuse this number And equations too I need exactly help
salma
But this is not salma it's Faiza live in lousvile Ky I garbage this so I am going collage with JCTC that the of the collage thank you my friends
salma
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
hi
salma
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
Privacy Information Security Software Version 1.1a
Good
Got questions? Join the online conversation and get instant answers!
QuizOver.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Lewensorientering graad 6. OpenStax CNX. Sep 07, 2009 Download for free at http://cnx.org/content/col11001/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Lewensorientering graad 6' conversation and receive update notifications?

Ask