The appearance of biodegradable plastics is regarded as a powerful tool to deal with the environmental pollution of plastic food, especially disposable straws."Vanishing without disposal" is a common public perception or expectation of biodegradable plastics.
But in November 2015, the United Nations environment programme (unep) published the biodegradable plastic and Marine garbage: misunderstanding, concerns, and the impact on the Marine environment "report, called for eliminating the biodegradable plastic TAB of error, the report pointed out that being labeled" biodegradable "products are widely used will not significantly reduce the plastic into the ocean in the garbage, or reduce the physical and chemical risks from plastics on the ocean.Food plastic packaging labeled as "biodegradable" and "100% biodegradable" is easily misunderstood by consumers, leading to an increase in the random purchase and disposal behavior, which may aggravate the problem of plastic pollution.
In April 2019, Environmental Science & Technology published a new study conducted by the university of Plymoutha in the UK, pointiang out that some of the biodegradable plastic bags can still be used normally after being placed in different natural environment conditions for three years.The evaluated oxygen-degraded or biodegradable plastic bags did not show better degradation effect than traditional plastic bags.The article once again aroused people's concern about the role of biodegradable plastics.The European bioplastics association, which represents the industry, questioned the scientific nature of the research and claimed it misled the value of biodegradable and compostable plastics.
, so to speak, to the role of biodegradable plastics in plastic pollution control have been squabbling, investigate its reason, in addition to the policy uncertainty, the standard is not sound, scientific research of the debate, the influence of such factors as the concept of the public and the industry of biodegradable plastics is not clear and chaos is also an important reason, which lead to misuse, abuse of biodegradable identity, or even the phenomenon of false advertising.Some typical misunderstandings include:
Biodegradable plastics are considered as biodegradable plastics.
Consider biodegradable as fully biodegradable;
The biodegradation of industrial compost was considered to be biodegradable in natural environment.