According to statistics from the Ministry of Natural Resources and Environment, in Vietnam, about 1.8 million tons of plastic waste is discharged into the environment each year. However, only 27% of it is recycled and utilized by facilities and businesses. The rest is buried, buried in the ground or discharged into the sea. Therefore, paying attention to the decomposition time of plastic waste is extremely necessary to raise people’s awareness in the use and recycling of this type of waste.
Depending on the structure and materials, each type of plastic waste has a different decomposition time. But in general, the decomposition time of this type of waste is very long, up to more than 1000 years.
|Product||Structural materials||Decomposition time|
|Plastic bags and thin plastic bags||High-Density Polyethylene Compound (HDPE)||From 10 tp 100 years|
|Thick, tough plastic bags||Low-Density Polyethylene Compound (LDPE)||From 500 to 1000 years|
|Plastic bottle||Polyethylene Terephthalate Plastic (PET)||From 450 to 1000 years|
|Detergent bottle||High-Density Polyethylene Compound (HDPE)||From 500 to 1000 years|
|Plastic straw||Polypropylene Plastic (PP)||From 100 to 500 years|
|Plastic spoons and forks||PE, PP,…||From 100 to 500 years|
|Toothbrush||Polyamide Plastic (PA)||Over 500 years|
|Cup of yogurt||Polypropylene Plastic (PP)||From 100 to 500 years|
|Styrofoam cup||Extruded Polystyrene Foam Plastic (XPS)||From 50 to 500 years|
|Lid||Polypropylene Plastic (PP)||From 100 to 500 years|
|Diapers and sanitary napkins||Polypropylene Plastic (PP)||From 250 to 500 years|