Biodegradable Micro and Nanoplastics as Emerging Environmental Pollutants

可生物降解的微米和纳米塑料作为新兴环境污染物

• 批准号: 2889749
• 金额: --
• 依托单位: Queen's University Belfast
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2889749
• 关键词: Biodegradable; Micro; Nanoplastics; Emerging; Environmental

The accumulation of micro-nano-plastics and the effects these have on organisms, food webs, nutrient and energy transfers, ecosystem function, and ultimately ecosystem services are a global concern. The environmental and ecological effects of biodegradable micro and nanoplastics (BMNPs), the adsorption and release of toxic substances, and the role of BMNPs in transporting legacy contaminants remains to be elucidated. In the aquatic environment, not all biodegradable plastics exhibit the same rates of decay and consequently, biodegradation can take an extended time. Many legacy compounds, such as polychlorinated naphthalene (PCN), can interact with BMNP making synergistic effects highly likely. For this reason, the goal of this QUADRAT PhD is to assess the implications of switching from oil-based plastics to newer biodegradable plastics. The objective is to exploit a sentinel fish species the shanny (Lipophrys pholis) informed by the zebrafish toxicology model to assess the impacts of the two most-produced biodegradable plastics, biobased (PLA - polylactic acid) and non-biobased (PBAT - polybutylene adipate terephthalate) and a legacy contaminant (PCN) that is widespread in in the Irish Sea. This approach is based on pilot studies at QML showing shanny is easy to manipulate, and amenable to exposure experiments with various plastics, both ambient and in the diet. The project will combine aspects of marine biology, environmental chemistry, genetics, bioinformatics, and systems biology. The project's multidisciplinary approach provides an excellent opportunity for training in various aspects of fish biology, behaviour, ecology, state-of-the-art 'omics technologies, and advanced environmental and risk assessment analysis.

微纳米塑料的积累以及这些对生物，食物网，营养和能量转移，生态系统功能以及最终生态系统服务的影响是全球关注的问题。可生物降解的微塑料和纳米塑料（BMNP），有毒物质的吸附和释放以及BMNP在运输传统污染物中的作用的环境和生态影响尚待阐明。在水生环境中，并非所有可生物降解的塑料都表现出相同的衰减速率，因此，生物降解可能需要很长时间。许多遗产化合物，例如多氯联苯（PCN），都可以与BMNP相互作用，从而使协同作用很有可能。因此，该四边形博士学位的目标是评估从石油塑料转换为新的可生物降解塑料的含义。目的是利用斑马鱼毒理学模型所告知的Shanny（脂源Pholis）的哨兵鱼类，以评估两种最可生产的可生物降解塑料的影响，生物降解的塑料，生物生物基型（PLA-多聚乳酸）和非生物生物（PBAT- pBAT-多丁基脂肪），并构成了何种遗产（PROCEN），以否定量表属于norkenecentical（norken）norkenate contereantic contenice torexace in evemenate conterication conterantic contenice conterantic contace to norkenatie toe norkenatie the norkenatie the norkenatie（在爱尔兰海。这种方法基于QML的试点研究，表明Shanny易于操纵，并且可以通过各种环境和饮食中的各种塑料进行暴露实验。该项目将结合海洋生物学，环境化学，遗传学，生物信息学和系统生物学的各个方面。该项目的多学科方法为在鱼类生物学，行为，生态学，最先进的OMICS技术以及先进的环境和风险评估分析方面的各个方面提供了培训的绝佳机会。