What are plastics?
A plastic material is any of a wide range of synthetic or semi-synthetic organic solids that are moldable. Plastics are typically organic polymers of high molecular mass, but they often contain other substances. They are usually synthetic, most commonly derived from petrochemicals, but many are partially natural.
Most plastics are produced from petrochemicals. Motivated by the finiteness of petrochemical reserves and possibility of global warming, bioplastics are being developed. Bioplastics are made substantially from renewable plant materials such as cellulose and starch.
In comparison to the global consumption of all flexible packaging, estimated at 12.3 million tonnes/year, estimates put global production capacity at 327,000 tonnes/year for related bio-derived materials
Health Hazards of Plastic Wastes (Biodiversity)
Since 1950, plastics have played an omnipresent part of our daily lives. They are everywhere and globally we use more than 260 million tons of plastic each year. Most of the marine debris in the world is comprised of plastic materials (between 60 to 80% of total marine debris). Field studies have shown that mega- and macro-plastics have concentrated in the highest densities in the Northern Hemisphere, adjacent to urban areas, in enclosed seas and at water convergences. The longevity of some plastics is estimated to be hundreds to thousands of years!
The environmental impacts resulting from the accumulation of plastic waste are huge and increasing. Plastic debris affects wildlife, human health, and the environment. The millions of tons of plastic bottles, bags, and garbage in the world's oceans are breaking down and leaching toxins posing a threat to marine life and human. Plastic materials in landfills sink in harmful chemicals into groundwater. Chemicals added to plastics are dangerously absorbed by humans like altering hormones. Research on plastics includes a large and robust literature reporting adverse health effects in laboratory animals and wildlife at even low doses. Plastic debris is ingested by hundreds of species choking and starving them. Floating plastic debris can spread invasive species.
The environmental impacts resulting from the accumulation of plastic waste are huge and increasing. Plastic debris affects wildlife, human health, and the environment. The millions of tons of plastic bottles, bags, and garbage in the world's oceans are breaking down and leaching toxins posing a threat to marine life and human. Plastic materials in landfills sink in harmful chemicals into groundwater. Chemicals added to plastics are dangerously absorbed by humans like altering hormones. Research on plastics includes a large and robust literature reporting adverse health effects in laboratory animals and wildlife at even low doses. Plastic debris is ingested by hundreds of species choking and starving them. Floating plastic debris can spread invasive species.
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