التفاصيل البيبلوغرافية
| العنوان: |
Nanoplastics Weathering and Polycyclic Aromatic Hydrocarbon Mobilization. |
| المؤلفون: |
Schiferle EB, Ge W, Reinhard BM |
| المصدر: |
ACS nano [ACS Nano] 2023 Mar 28; Vol. 17 (6), pp. 5773-5784. Date of Electronic Publication: 2023 Mar 07. |
| نوع المنشور: |
Journal Article |
| اللغة: |
English |
| بيانات الدورية: |
Publisher: American Chemical Society Country of Publication: United States NLM ID: 101313589 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1936-086X (Electronic) Linking ISSN: 19360851 NLM ISO Abbreviation: ACS Nano Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: |
Original Publication: Washington D.C. : American Chemical Society |
| مستخلص: |
Despite increasing efforts to recycle plastic materials, large quantities of plastics waste continue to accumulate in the oceans. Persistent mechanical and photochemical degradation of plastics in the oceans yields micro- and nanoscale plastic particles, which represent potential vectors for mobilizing hydrophobic carcinogens in an aqueous milieu. Yet, the fate and potential threats associated with plastics remain largely unexplored. Herein, we apply an accelerated weathering protocol to consumer plastics to characterize the effect of photochemical weathering on the size, morphology, and chemical composition of nanoplastics under defined conditions and validate that the photochemical degradation is consistent with plastics harvested from the Pacific Ocean. Machine learning algorithms trained with accelerated weathering data successfully classify weathered plastics from nature. We demonstrate that photodegradation of poly(ethylene terephthalate) (PET)-containing plastics produces enough CO 2 to induce a mineralization process that results in the deposition of CaCO 3 on nanoplastics. Finally, we determine that despite UV-radiation induced photochemical degradation and mineral deposition, nanoplastics retain their ability to sorb, mobilize, and increase bioaccessibility of polycyclic aromatic hydrocarbons (PAHs) in water and under simulated physiological gastric and intestinal conditions. |
| فهرسة مساهمة: |
Keywords: PAHs; bioaccessibility; carcinogen; environment; nanoplastics; plastic waste; polycyclic aromatic hydrocarbons |
| تواريخ الأحداث: |
Date Created: 20230307 Date Completed: 20230328 Latest Revision: 20230328 |
| رمز التحديث: |
20231215 |
| DOI: |
10.1021/acsnano.2c12224 |
| PMID: |
36881519 |
| قاعدة البيانات: |
MEDLINE |
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