Problems When Plastics Burn. Some plastics burn to produce toxic fumes. They can produce thick black smoke, make toxic fumes and use up large amounts.

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Presentation transcript:

Problems When Plastics Burn

Some plastics burn to produce toxic fumes. They can produce thick black smoke, make toxic fumes and use up large amounts of oxygen. As plastics contain carbon, so they produce carbon dioxide, carbon monoxide (as air runs out), and smoke.

PlasticElements presentToxic fumes Poly(ethene) Carbon and hydrogen Carbon monoxide P.V.C. Carbon, hydrogen and chlorine Hydrogen chloride (acidic) Polyurethane foam Carbon, hydrogen and nitrogen Hydrogen cyanide (toxic) Polystyrene Carbon and hydrogen Dense, black smoke

Biodegradable Plastics Plastic packaging does not rot away and so causes major litter problems. Many plastics are non-biodegradable, meaning they will not rot away naturally. Plastics are now being introduced that are biodegradable e.g. Biopol (biodegradable polymer).

Paper, originally used for packaging, did rot away under the action of microbes, and is described as biodegradable. BIODEGRADABLE means that the material will decay naturally.