Excellence in Research: The Fate of Microplastics Within the Georgia Bight

卓越的研究：乔治亚湾微塑料的命运

• 批准号: 2301650
• 负责人: Sue Ebanks
• 金额: $ 103.85万
• 依托单位: Savannah State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-07-15 至 2026-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2301650&HistoricalAwards=false
• 关键词: Excellence; Research; Fate; Microplastics; Within

This is a collaborative effort to determine movements and abundances of small particulate plastics from the main coastal Georgia river systems to the NOAA Gray’s Reef National Marine Sanctuary. Through existing equipment and resources at Savannah State University (SSU),the Northeast Fisheries Science Center (NEFSC Sandy Hook Laboratory, SHL), the University of Georgia Skidaway Institute of Oceanography (UGA SkIO), and Gray’s Reef National Marine Sanctuary (GRNMS), this team will address three key science objectives. Further, to advance research at Historically Black Colleges and Universities (HBCUs) and increase equitable involvement of African Americans and other underrepresented groups in the geosciences, there is a need for intra- and inter-institutional partnerships that are focused on both the intellectual merit and broader impacts radiating from that engagement. This can be achieved through place-based, relevant research that is connected to the broader research and to social communities, providing students with a sense of place within the scientific community and a sense of contribution for their social community. This project balances scientific objectives with multidimensional student mentorship and training in small particulate plastics research that includes targeted improved efficiency and training in primary and secondary analytical techniques, both critical to studying nano- and microplastics.Utilizing drifters and static water-tracking technology, concurrent water-sediment-biota collection, unique human-powered shallow-water collection methods, fluorescence-based particle detection, Raman spectroscopy, and pyrolysis-gas chromatography-mass spectrometry, this team will address the following Science objectives: (1) Quantify and characterize micro- and nano-plastic distributions in water and sediments in the Georgia Bight region, with particular emphasis on establishing the temporal and spatial variability of these materials; (2) Examine representative estuarine faunal species within waterways of the Georgia Bight region for micro- and nano-scale plastic contamination, including in regions with high human population densities and low, as well as offshore; and (3) Complete design, construction, and testing to deploy a cost-effective shallow-water estuary profiling system for improved access to sediment and water sample collection and in situ analyses of site characteristics. This project will collect multiple types of samples in the same location, providing high data density that will allow the investigators to discern the processes that affect microplastic distribution in the Georgia Bight region.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这是一项合作努力，以确定从主要沿海格鲁吉亚河流系统到NOAA格雷礁国家海洋保护区的小颗粒塑料的运动和丰度。通过现有的设备和资源在萨凡纳州立大学（SSU），东北渔业科学中心（NEFSC桑迪胡克实验室，SHL），格鲁吉亚斯基德韦海洋学研究所（UGA SkIO）的大学，和格雷礁国家海洋保护区（GRNMS），这个团队将解决三个关键的科学目标。此外，推进研究在历史上的黑人学院和大学（HBCU），并增加公平参与的非裔美国人和其他代表性不足的群体在地球科学，有必要为内部和机构间的伙伴关系，侧重于智力的优点和更广泛的影响辐射从该参与。这可以通过与更广泛的研究和社会社区相联系的基于地点的相关研究来实现，为学生提供科学界的地方感和对社会社区的贡献感。该项目平衡了科学目标与多维学生指导和小颗粒塑料研究培训，包括有针对性地提高效率和初级和二级分析技术培训，这对研究纳米和微塑料至关重要。利用漂流物和静态水跟踪技术，同时收集水-沉积物-生物群，独特的人力浅水收集方法，基于荧光的颗粒检测，拉曼光谱和热解-气相色谱-质谱，该团队将解决以下科学目标：（1）量化和表征格鲁吉亚湾地区水和沉积物中的微塑料和纳米塑料分布，特别强调建立这些材料的时间和空间变异性;（2）检查格鲁吉亚湾地区水道内具有代表性的河口动物物种，以确定是否存在微尺度和纳米尺度的塑料污染，包括人口密度高和低的地区以及近海地区;以及（3）完成设计、建造和测试，以部署一个具有成本效益的浅水河口剖面系统，以改善沉积物和水样收集以及现场特征分析的访问。该项目将在同一地点收集多种类型的样本，提供高数据密度，使调查人员能够辨别影响格鲁吉亚湾地区微塑料分布的过程。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。