degrading plastics emit greenhouse gases: study - polycarbonate
Washington: according to a study, some greenhouse gases are emitted due to the degradation of ordinary plastics in the environment.
Greenhouse gases that directly affect climate change
Researchers at the University of Hawaii in Manoa say the impacts on sea levels, global temperatures, health of land and marine ecosystems, and storms that increase flooding and drought.
Plastics serve many applications due to their durability, stability and low cost, but have harmful effects on the environment.
As we all know, plastics release a variety of chemicals in the degradation process, which has a negative impact on organisms and ecosystems.
The study, published in the journal plos one, found that the most common plastics produce greenhouse gases methane and ethylene when exposed to sunlight.
The team tested polycarbonate, acrylic, polypropylene, polystyrene, polystyrene, high
Polyethylene and low density
Density Polyethylene (LDPE)-
Materials for food storage, textiles, construction materials and various plastic products.
Polyethylene used in shopping bags is the world's most produced and discarded synthetic polymer and is found to be the most productive transmitter in both gases.
The team found an increase in the number of gas emitted from Virgin LDPE particles. A-212
Experiments during the day and fragments of low-density polyethylene found in the ocean also emit greenhouse gases when exposed to sunlight.
Once triggered by solar radiation, the emissions of these gases continue in the dark.
"We attribute the increase in greenhouse gas emissions over time to from raw particles to photos-
Degradation of plastic, and the formation of a surface layer with cracks, Micro
Sarah said: "cracks and pits
Jenny Royer, the latter
University of Hawaii at Manoa.
"Over time, these defects increase the surface area that can be used for further photographing
Chemical degradation therefore helps to speed up the production of gas, "Royer said.
Smaller particles, known as "microplastics", are eventually produced in the environment and may further accelerate the generation of gases.
"Plastic is the source of climate --
As more plastics grow and accumulate in the environment, associated trace gases are expected to increase, "said David Carr, a senior author of the study.
"When assessing the global methane and ethylene cycles, this source is not yet budgeted and may be important," Carr said . ".