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  • Tekens en simptome:Iemand wat asbestose onder lede het, kan eers baie later in sy/haar lewe vir die eerste keer tekens of simptome van die siekte begin ervaar. Soms is dit eers tussen 10 en 20 jaar later.Tipiese simptome wat ‘n pasiënt met asbestose sal ervaar:
  • kort van asem;
  • haal met moeite asem;
  • konstante hoes;
  • lei tot hoesspasmas;
  • “vaste” bors;
  • borspyne;
  • pasiënt voel swak en siek;
  • swak slaappatrone;
  • swak eetlus.
  • Behandeling:

Daar is ongelukkig geen genesing van asbestose nie. Geneeshere probeer slegs om die simptome te verlig.

Die pasiënt moet onmiddellik alle moontlike kontak met asbes uitskakel en indien hy/sy rook, dit dadelik staak. Die longinfeksie moet aggressief behandel word. Asbestose-pasiënte moet ook alles moontlik doen om verkoues of griep vry te spring.

AKTIWITEIT 3

OM PROBLEEMSITUASIES IN GROEPSVERBAND TE IDENTIFISEER EN MOONTLIKE OPLOSSINGS DAARVOOR VOOR TE STEL

[LU 3.1; 3.3]

  • Hier volg ‘n uittreksel uit die toespraak van Mnr. Mabudafhasi, as adjunkminister van omgewingsake en toerisme van S.A., by die openbare verhoor oor asbes op 28 Januarie 2003.

Asbestos has been mined in this country for many years. By 1910 five asbestos mines were operating in South Africa. By the 1950’s, in other parts of the world such as Britain, companies have become aware that exposure to asbestos is harmful to human health and causes disease. In South Africa this realisation was not embraced so workers continued to remain ignorant of the true dangers of asbestos.

In South Africa the problem is more acute in the Limpopo Province and Northern Cape where reports indicate that children are forever playing on asbestos polluted and contaminated grounds. South Africa must come to term with the fact that we have an asbestos industry. The challenge is to ensure that all parts of the asbestos chain, from mining to ultimately removal and waste disposal, are handled in a responsible manner to avoid pollution that could be harmful to both the environment and the people.

Looking at the policy approach, the precautionary principle is a key part of South Africa’s environmental management policy. This means that our approach to development and good environmental governance is that where any risks exists, we need to focus our energies on preventive action to counteract any possible harm that could result from such development action.

However, the overall government policy on asbestos is till in its infancy. It is against this policy background that I must announce my profound appreciation of the efforts undertaken by government departments to deal with identified sources of asbestos problem. The Department of Minerals and Energy (DME) has started to deal with the mine dumps, but the issue of secondary pollution into nearby villages still remains unresolved. It is of course unsatisfactory that the mining companies that made huge profits have simply disappeared and did not contribute to this effort.

Since 1996, the National Parliamentary Portfolio Committee on Environmental Affairs and Tourism took the initiative to investigate the impacts of asbestos within South Africa. The effects of asbestos are felt throughout the country, en every province, either through having mines or mine dumps in their provinces or through the use of asbestos products by consumers in general. Ex-workers and other sufferers of asbestos related diseases contracted due to environmental exposure are also not confined to one particular region but extend beyond our borders.

(External Link)

Beantwoord die volgende vrae nadat julle die inhoud van die toespraak in groepverband bespreek het:

1. Doen ons land genoeg om gevare van asbesstof aan te spreek?

2. Wat word reeds in SA gedoen om die negatiewe uitwerking van asbesstof te bekamp?

3. Wat kan gedoen word om die inwoners van SA teen die gevare te beskerm?

Assessering

LU 3

VERKENNING VAN VRAAGSTUKKE

Die leerder is in staat om ingeligte besluite oor sosiale en omgewingsvraagstukke en –probleme te neem.

Dit is duidelik wanneer die leerder:

3.1 vraagstukke wat met hulpbronne en dienste in ‘n spesifieke konteks gepaardgaan, identifiseer [identifiseer die vraagstuk];

3.2 faktore wat veroorsaak dat sommige mense in ‘n spesifieke konteks groter toegang tot hulpbronne as ander het, identifiseer [faktore wat die vraagstuk affekteer];

3.3 maniere voorstel om toegang tot hulpbronne in ‘n spesifieke konteks te verbeter [maak keuses].

Memorandum

AKTIWITEIT 1

  • Die fabriek hergebruik die “besoedelde” water

AKTIWITEIT 2

1.

Berig 1: Werker siek a.g.v. werksomstandighede

Berig 2: Sterftes a.g.v. werksomstandighede toegesmeer

Berig 3: Besoedeling lei tot verswakking in gesondheid

Berig 4: Myne besoedel grond en riviere

2.

  • Laekoste-behuising sowel as mynhuise naby aan nywerhede geleë – verswakking in gesondheid
  • Ontbossing – gebrek aan suurstof
  • Mense moet ingelig wees oor gevare. Dit moet sigbaar wees dat besture dit teenwerk

AKTIWITEIT 3

1.

  • Beleid reeds in plek, maar word nog nie oral suksesvol toegepas nie.
  • Mynbesture nie genoegsaam betrokke by die bekamping van negatiewe invloed nie.

2.

  • Beleid saamgestel
  • Probeer voorkomend optree
  • Toepassing van beleid nog in babaskoene

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Sosiale wetenskappe: aardrykskunde graad 5. OpenStax CNX. Sep 22, 2009 Download for free at http://cnx.org/content/col10985/1.2
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