Sources, sinks and fate of microplastics in the Strait of Georgia and its urbanized watershed: a solution-oriented natural mesocosm study.

乔治亚海峡及其城市化流域微塑料的来源、汇和命运：一项以解决方案为导向的自然中生态研究。

• 批准号: 558447-2020
• 负责人: Maldonado, Maria
• 金额: $ 10.58万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=721723
• 关键词: Sources; sinks; fate; microplastics; Strait

Microplastics (MPs) are increasingly concerning from both public and environmental health perspectives. Our team represents a multi-disciplinary network of researchers from several institutions and organizations, including the ocean conservation organization Ocean Wise, three UBC faculties, the Woods Hole Oceanographic Institute, Environmental Monitoring and Management Division at Metro Vancouver and Environmental Engineering Services at the City of Vancouver. Collectively, we are uniquely positioned to significantly contribute to inform science-based solutions to plastics in the Canadian environment.This proposal aims to substantially advance technologies to accurately quantify and characterize MPs pollution, including microfibers, in aquatic environments. As land-based activities play a key role in introducing MPs to the ocean, coastal urban watersheds are ideal to apply these technologies and study entry pathways of MPs. The Strait of Georgia is heavily urbanized and sources of contaminants (i.e. stormwater /runoff, atmospheric deposition, combined sewer overflows, rivers and wastewater outfalls) can be well constrained. Our goal is to deliver a comprehensive, solution-oriented research package that combines a) the development of a suite of innovative technologies for the accurate quantification and characterization of MPs in marine waters, plankton and planktivorous fish; b) studies on the sources, transport and fate of MPs in the Strait of Georgia (SoG) and its urbanized watershed; c) experiments on microbial-mediated MPs degradation; d) pioneering predictive models to evaluate the ultimate fate of MPs in SoG. We aim to identify the processes controlling MP dispersal, biological uptake, degradation, sedimentation in SoG, and export to the Pacific Ocean. Our findings will have direct implications for urban management of drainage water and liquid wastewater practices; for the private sector as firms seek to design and manufacture more sustainable materials; and for the consumer and homeowners; and regulators and policymakers working on plastics, material design and trade at the local, national, and international level.

从公共和环境健康的角度来看，微塑料（MPS）越来越关注。我们的团队代表了来自多个机构和组织的研究人员的多学科网络，包括海洋保护组织Ocean Wise，三个UBC学院，Woods Hole Oceanographic Institute，Enovental Enocuntion和Management部门的温哥华市环境监测和管理部门以及温哥华市的环境工程服务。总的来说，我们的位置是在加拿大环境中为基于科学的塑料提供明显的贡献。该提案旨在实质上推进技术，以准确地量化和表征MPS污染，包括微生物，在水生环境中。由于陆基活动在将国会议员引入海洋方面起着关键作用，因此沿海城市流域非常适合应用这些技术和研究MPS的进入途径。佐治亚州的海峡大量城市化，污染物的来源（即雨水 /径流，大气沉积，下水道溢出，河流和废水排放）可能受到良好的限制。我们的目标是提供一个全面的，面向解决方案的研究包，结合了a）一套创新技术的开发，用于在海洋水域，浮游生物和浮游生物中对MP的准确量化和表征； b）关于佐治亚州海峡（SOG）及其城市化流域中国会议员的来源，运输和命运的研究； C）实验微生物介导的MPS降解； D）开创性预测模型，以评估SOG中MP的最终命运。我们旨在确定控制MP分散，生物学吸收，降解，SOG沉积和出口到太平洋的过程。我们的发现将对排水和液体废水实践的城市管理有直接的影响；对于私营部门，当公司寻求设计和制造更多可持续的材料时；对于消费者和房主；以及在当地，国家和国际层面从事塑料，材料设计和贸易的监管机构和政策制定者。