Evaluating the Environmental Factors on Microplastic Generation: An Accelerated Weathering Study DOI Creative Commons
Sara Rostampour,

Song Syun Jhang,

Jung-Kai Hsu

et al.

Microplastics, Journal Year: 2025, Volume and Issue: 4(1), P. 13 - 13

Published: March 5, 2025

Microplastics pose a significant environmental threat, and understanding their sources generation mechanisms is crucial for mitigation efforts. This study investigates the effects of ultraviolet intensity, temperature, relative humidity on degradation polyethylene terephthalate (PET) plastics subsequent formation microplastic particles. PET samples were exposed to (UV) radiation under various conditions using SPHERE (Simulated Photodegradation via High Energy Radiant Exposure) accelerated weathering device at National Institute Standards Technology (NIST). Attenuated total reflectance–Fourier transform infrared spectroscopy (ATR-FTIR) laser confocal scanning microscopy (LSCM)/atomic force (AFM) employed characterize chemical morphological changes weathered surfaces. study’s findings reveal that temperature significantly influence rate photodegradation characteristics generated microplastics. Higher temperatures increased process, leading higher abundance However, larger particles observed due aggregation. These results underscore importance considering factors when assessing fate transport microplastics in environment. Developing strategies reduce plastic pollution mitigate essential protecting ecosystems human health.

Language: Английский

Evaluating the Environmental Factors on Microplastic Generation: An Accelerated Weathering Study DOI Creative Commons
Sara Rostampour,

Song Syun Jhang,

Jung-Kai Hsu

et al.

Microplastics, Journal Year: 2025, Volume and Issue: 4(1), P. 13 - 13

Published: March 5, 2025

Microplastics pose a significant environmental threat, and understanding their sources generation mechanisms is crucial for mitigation efforts. This study investigates the effects of ultraviolet intensity, temperature, relative humidity on degradation polyethylene terephthalate (PET) plastics subsequent formation microplastic particles. PET samples were exposed to (UV) radiation under various conditions using SPHERE (Simulated Photodegradation via High Energy Radiant Exposure) accelerated weathering device at National Institute Standards Technology (NIST). Attenuated total reflectance–Fourier transform infrared spectroscopy (ATR-FTIR) laser confocal scanning microscopy (LSCM)/atomic force (AFM) employed characterize chemical morphological changes weathered surfaces. study’s findings reveal that temperature significantly influence rate photodegradation characteristics generated microplastics. Higher temperatures increased process, leading higher abundance However, larger particles observed due aggregation. These results underscore importance considering factors when assessing fate transport microplastics in environment. Developing strategies reduce plastic pollution mitigate essential protecting ecosystems human health.

Language: Английский

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