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Hace 5 días · La reducción de la capa de ozono disminuye la protección natural que ofrece nuestra atmósfera contra la radiación ultravioleta (UV) perjudicial del sol. Esta página web proporciona una descripción general de los principales problemas de salud relacionados con la sobreexposición a la radiación UV.
Hace 5 días · Ultraviolet (UV) radiation is undetectable by the human eye, although, when it falls on certain materials, it may cause them to fluoresce —i.e., emit electromagnetic radiation of lower energy, such as visible light. Many insects, however, are able to see ultraviolet radiation.
Hace 1 día · For example, polymers exposed to harsh environmental conditions may degrade more rapidly than those in controlled environments. High temperatures accelerate thermal degradation processes, while UV radiation enhances photo-oxidation reactions. Additionally, exposure to acidic or alkaline environments can promote hydrolytic degradation of polymers.
Hace 4 días · UV radiation can fade colors and degrade materials. Prolonged exposure to UV radiation can cause fading and deterioration of materials, such as fabrics, plastics, and artwork. This effect is particularly noticeable in items exposed to direct sunlight for extended periods.
Hace 2 días · Study Shows Bright Plastics May Degrade Faster, Creating More Microplastics. Published on 2024-06-03. Edited By : SpecialChem. Researchers led by the University of Leicester have demonstrated that plastics with bright colors such as red, blue, and green degrade and form microplastics quicker than those with plainer colors.
Hace 14 horas · Laboratory experiments suggest that polyethylene (PE) marine waste exposed to ultraviolet light would be broken down and used as an energy source by the fungus at a rate of 0.044% per day.
Hace 2 días · Image Credit: Adobe Stock/Aram. A team of researchers led by the University of Leicester, in Leicester, U.K., have demonstrated that plastics with bright colours such as red, blue, and green degrade and form microplastics faster than those with plainer colours. Their findings reveal that the colourant used in the formulation of a plastic ...
