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Plastic bags were found to constitute a significant portion of the floating marine debris in the waters around southern Chile in a study conducted between 2002 and 2005. [29] Plastic bags don't do well in the environment, but several government studies have found them to be an environmentally friendly carryout bag option.
Polyethylene was first synthesized by the German chemist Hans von Pechmann, who prepared it by accident in 1898 while investigating diazomethane. [12] [a] [13] [b] When his colleagues Eugen Bamberger and Friedrich Tschirner characterized the white, waxy substance that he had created, they recognized that it contained long −CH 2 − chains and termed it polymethylene.
A plastic bag, poly bag, or pouch is a type of container made of thin, flexible, plastic film, nonwoven fabric, or plastic textile. Plastic bags are used for containing and transporting goods such as foods, produce, powders, ice, magazines, chemicals, and waste. It is a common form of packaging.
A 50 cent plastic bag levy was implemented on 1 April 2015 across Hong Kong. The use of plastic bags dropped 90% after the introduction of the levy. [79] Signs show that Hong Kong is phasing out the use of plastic bags at a dramatic rate. A sign proclaiming that polythene bags thinner than 30 μm are prohibited in Kasaragod, Kerala, India.
HDPE is known for its high strength-to-density ratio. [4] The density of HDPE ranges from 930 to 970 kg/m 3. [5] Although the density of HDPE is only marginally higher than that of low-density polyethylene, HDPE has little branching, giving it stronger intermolecular forces and tensile strength (38 MPa versus 21 MPa) than LDPE. [6]
OMG--just look at him! This long-haired Dachshund is as fashionable as can be in his work vest, but clearly, he has no time to be fawned over. He may be a small dog, but he means business! Related ...
A man pleaded guilty in the 2015 killings of a Georgia couple after a magnet fisher pulled in a rifle and other evidence linked to the case.
Such sources of secondary microplastics include water and soda bottles, fishing nets, plastic bags, microwave containers, tea bags and tire wear. [ 69 ] [ 68 ] [ 70 ] [ 71 ] Both types are recognized to persist in the environment at high levels, particularly in aquatic and marine ecosystems , where they cause water pollution .