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High-altitude aquatic ecosystems offer faster aging rate of plastics.
Miao, Lingzhan; Deng, Xiaoya; Qin, Xiangchao; Huang, Yi; Su, Libin; Adyel, Tanveer M; Wang, Zhiyuan; Lu, Zhao; Luo, Dan; Wu, Jun; Hou, Jun.
Afiliación
  • Miao L; Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China. Electronic address: lzmiao@hhu.edu.cn.
  • Deng X; Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China.
  • Qin X; Eco-environmental Monitoring and Scientific Research Center, Yellow River Basin Ecology and Environment Administration, Zhengzhou 450004, People's Republic of China. Electronic address: qinxiangchao@outlook.com.
  • Huang Y; Tibet Agriculture and Animal Husbandry University, No.100, Yucai West Road, Bayi District, Nyingchi City 860006, People's Republic of China. Electronic address: huangyi@xza.edu.cn.
  • Su L; Tibet Agriculture and Animal Husbandry University, No.100, Yucai West Road, Bayi District, Nyingchi City 860006, People's Republic of China. Electronic address: lbsu@xza.edu.cn.
  • Adyel TM; STEM, University of South Australia, Mawson Lakes Campus, Mawson Lakes, South Australia 5095, Australia; Biosciences and Food Technology Discipline, RMIT University, Melbourne, VIC 3000, Australia.
  • Wang Z; Center for Eco-Environmental Research, Nanjing Hydraulic Research Institute, National Energy Administration, Ministry of Transport, Ministry of Water Resources, Nanjing 210029, People's Republic of China.
  • Lu Z; Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China.
  • Luo D; Tibet Research Academy of Eco-environmental Sciences, No.26, Jinzhu Middle Road, Chengguan District, Lhasa, Tibet Autonomous Region 850030, People's Republic of China. Electronic address: xzaees@126.com.
  • Wu J; Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China.
  • Hou J; Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China.
Sci Total Environ ; 951: 175827, 2024 Nov 15.
Article en En | MEDLINE | ID: mdl-39197763
ABSTRACT
While research on the aging behavior of plastics in aquatic systems is extensive, studies focusing on high-altitude ecosystems, characterized by higher solar radiation and lower temperatures, remain limited. This study investigated the long-term aging behavior of non-biodegradable plastics (non-BPs), namely polyethylene terephthalate (PET) and polypropylene (PP) and biodegradable plastics (BPs), specifically polylactic acid plus polybutylene adipate-co-terephthalate (PLA + PBAT) and starch-based plastic (SBP), in a tributary of the Yarlung Zangbo River on the high-altitude Tibetan Plateau. Over 84 days of field aging, all four types of plastics exhibited initial rapid aging followed by deceleration. This aging process can be divided into two phases rapid surface oxidation aging and an aging plateau phase. Notably, PP aged at a rate comparable to BPs, contrary to expectations of faster aging for BPs. Compared to low-altitude aquatic ecosystems, plastics in this study showed a faster aging rate. This was primarily due to intense ultraviolet radiation causing severe photoaging. Furthermore, the lower temperatures contributed to the formation of thinner biofilms. These thinner biofilms exhibited a reduced capacity to block light, further exacerbating the photoaging process of plastics. Statistical analysis results indicated that temperature, total nitrogen TN, and total phosphorus TP were likely the main water quality parameters influencing plastic aging. The varying effects of water properties and nutrients underscore the complex interaction of water quality parameters in high-altitude environments. Given the delicate nature of the high-altitude environment, the environmental impact of plastics, especially BPs, warrants careful consideration.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plásticos / Contaminantes Químicos del Agua / Altitud País/Región como asunto: Asia Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plásticos / Contaminantes Químicos del Agua / Altitud País/Región como asunto: Asia Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos