25-06-2012, 03:40 PM
PLASTIC POLLUTION
PLASTIC-POLLUTION8.ppt (Size: 906 KB / Downloads: 97)
INTRODUCTION:
Plastic is one of the few new chemical materials which pose environmental problem. Polyethylene, Polyvinyl Chloride, polystyrene is largely used in the manufacture of plastics.
Plastics are typically polymers of high molecular weight, and may contain other substances to improve performance and/or reduce costs.
PLASTIC’S ADVERSE EFFECTS ON OUR ENVIRONMENT:
Plastic pollute beaches & oceans Garbage has been discarded into the oceans for as long as humans have sailed the seven seas or lived on seashores or near waterways flowing into the sea. Since the 1940’s plastic use has increased dramatically, resulting in a huge quantity of nearly indestructible, material floating in the oceans and eventually deposited on beaches worldwide.
WAYS FOR PREVENTION:
The best way to protect ourselves from this lethal hazard is to avoid the usage of non-biodegradable carry bags.
Instead it can be substituted by durable and re-usable jute bags or canvas bags.
Manufacturing companies should find brown paper or other alternatives for packaging and wrapping cartons.
Supermarkets should replace plastic bags with paper or jute bags at checkout counters.