Chemicals and toxic waste
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Chemicals and toxic waste. Introduction I ) What are toxic waste and what are chemicals 1) Where do they come from ? 2) What does toxic waste contain ? 3) What’s radioactivity ? II ) Consequences on the environment III ) Solutions to reduce toxic waste 1) Select and recycling

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Chemicals and toxic waste

Chemicals and toxic waste


Chemicals and toxic waste

Introduction

I ) What are toxic waste and what are chemicals

1) Where do they come from ?

2) What does toxic waste contain ?

3) What’s radioactivity ?

II ) Consequences on the environment

III ) Solutions to reduce toxic waste

1) Select and recycling

2) Prevention !

IV ) Our opinion about toxic waste

Vocabulary and definition


Chemicals and toxic waste

Human activity produces millions of tons of waste. They are very different :

S.I.W : Special Industrial Waste

Waste : déchets

Yearly : in 365 days


Chemicals and toxic waste

Vital function :

ex: respiratory,heart..

A toxic substance causes desorders of vital function.

S.I.W come from chemicals, steal metallurgy, smelting works industries.

There is : -organic waste

-inorganic waste

-solid mineral waste

Toxic waste can be:

-chemicals of laboratory

-photographic baths

-painting, glues, vernish…

Steal metallurgy :

Industries de métallurgie

Smelting works industries:

Industries de fonderies

Tar : solvants


Chemicals and toxic waste

HEAVY METAL ARE TOXIC !!

  • Heavy metals are cadmium, copper, mercury, plumb, arsenic fluorine…

Photographic baths : bains photographiques

Paintings, vernish, glues:peintures, vernis, colles

Cartridges for printers : cartouches d’imprimante

Heavy metal : métaux lourds

Cyanides: cyanure CN-

Sand of foundry: sable defonderie

Cyanided salts : sels cyanurés


Chemicals and toxic waste

As

Cadmium : Cd

Copper : cuivre Cu

Mercury : mercure Hg

Plumb : plomb Pb

Arsenic : arsenic As

Fluorine : fluor F

Treatements of grapevine : traitements des vignes

Intensive pig breeding : élevage intensif de porcs


Chemicals and toxic waste

DIOXINE

Cremation of ordinary waste


Chemicals and toxic waste

Improve : améliorer Quote : citer

Batteries : pilesplumb hose : tuyaux enplomb

Radioactivity is transformation of chimical elements in other more frivolous element.

Radioactivity => dangerous X-rays => matter become ion


Ii consequences on the environment

II) Consequences on the environment

  • Toxic wate => illnesses, asthma, allergies

  • Poisoning by plumb is saturnism digertive problems and development problems for babys

  • Poisoning by asbestos is carcinogenic

    Pregnant woman : femme enceinte

    Asbestos : amiante carcinogenic : cancérigène


Chemicals and toxic waste

Extract of news paper TIME MAGAZINE.

TOXIC WASTE ARE DANGEROUS FOR HUMANS


Chemicals and toxic waste

Look carefully bird’s three heads


Chemicals and toxic waste

Acid floors : sols acides

Ground water : nappe phréatique

Guenine : véritable

Health : santé


Chemicals and toxic waste

Visible pollutions of countryside and city


Chemicals and toxic waste

Butt :1 to 2 years

Piles : more than 50 years

Can : Until a century

Plastic bag : between 100 and 1000 years

Packaging aluminium : approximately 200 years

Glass : 3000 years


Chemicals and toxic waste

* 32% in recycling matters

* 17% in treatment for their elimination

* 51 % in garbage

  • Organic waste are incinerated

  • Inorganic waste are treated physically

  • Solid mineral waste are stored in garbage


Chemicals and toxic waste

Marc

Medhi

Lauriane

The End

MERCI DE NOUS AVOIR ECOUTER !!


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