دورية أكاديمية
Characterizing the photodegradation-induced release of volatile organic compounds from bottled water containers
| العنوان: | Characterizing the photodegradation-induced release of volatile organic compounds from bottled water containers |
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| المؤلفون: | Ruijuan Liu, Zhianqi Liao, Jing Zheng, Xinni Wu, Zongyi Tan, Huase Ou |
| المصدر: | Eco-Environment & Health, Vol 3, Iss 2, Pp 145-153 (2024) |
| بيانات النشر: | Elsevier, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Ecology LCC:Environmental sciences |
| مصطلحات موضوعية: | Plastic contaminants, Volatile organic compounds, Drinking water safety, Sunlight, Ultraviolet, Ecology, QH540-549.5, Environmental sciences, GE1-350 |
| الوصف: | While plastic water bottles are known to potentially release various volatile organic compounds (VOCs) when exposed to light, existing knowledge in this field remains limited. In this study, we systematically examined the composition, yield, and toxicity of VOCs released from six plastic containers obtained from different continents under UV-A and solar irradiation. After light exposure, all containers released VOCs, including alkanes, alkenes, alcohols, aldehydes, carboxylic acids, aromatics, etc. The 1#, 3#, 4#, 5#, and 6# containers exhibited 35, 32, 19, 24 and 37 species of VOCs, respectively. Specifically, the 2# container released 28 and 32 series of VOCs after 1-day (short-term) and 7-day (long-term) UV-A irradiation, respectively, compared to 30 and 32 species under solar irradiation. Over half of the VOCs identified were oxidized compounds alongside various short-chain hydrocarbons. Significant differences in VOC compositions among the containers were observed, potentially originating from light-induced aging and degradation of the polyethylene terephthalate structure in the containers. Toxicological predictions unveiled distinctive toxic characteristics of VOCs from each container. For example, among the various VOCs produced by the 2# container, straight-chain alkanes like n-hexadecane (544-76-3) were identified as the most toxic compounds. After long-term irradiation, the yield of these toxic VOCs from the 2# container ranged from 0.11 ng/g to 0.79 ng/g. Considering the small mass of a single bottle, the volatilization of VOCs from an individual container would be insignificant. Even after prolonged exposure to light, the potential health risks associated with inhaling VOCs when opening and drinking bottled water appear manageable. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2772-9850 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2772985024000061; https://doaj.org/toc/2772-9850 |
| DOI: | 10.1016/j.eehl.2024.01.005 |
| URL الوصول: | https://doaj.org/article/7dd7cb003c5d4b69849b23cf23c34b1e |
| رقم الأكسشن: | edsdoj.7dd7cb003c5d4b69849b23cf23c34b1e |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 27729850 |
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| DOI: | 10.1016/j.eehl.2024.01.005 |