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
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
Human activity produces millions of tons of waste. They are very different :
S.I.W : Special Industrial Waste
Waste : déchets
Yearly : in 365 days
Vital function :
A toxic substance causes desorders of vital function.
S.I.W come from chemicals, steal metallurgy, smelting works industries.
There is : -organic waste
-solid mineral waste
Toxic waste can be:
-chemicals of laboratory
-painting, glues, vernish…
Steal metallurgy :
Industries de métallurgie
Smelting works industries:
Industries de fonderies
Tar : solvants
HEAVY METAL ARE TOXIC !!
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
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
Cremation of ordinary 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
Pregnant woman : femme enceinte
Asbestos : amiante carcinogenic : cancérigène
Extract of news paper TIME MAGAZINE.
TOXIC WASTE ARE DANGEROUS FOR HUMANS
Look carefully bird’s three heads
Acid floors : sols acides
Ground water : nappe phréatique
Guenine : véritable
Health : santé
Visible pollutions of countryside and city
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
* 32% in recycling matters
* 17% in treatment for their elimination
* 51 % in garbage
MERCI DE NOUS AVOIR ECOUTER !!