Promoting a sustainable nanotechnology industry by evaluating the environmental risks of nanoparticle release from nano-enhanced materials in the Canadian environment

通过评估加拿大环境中纳米增强材料释放的纳米颗粒的环境风险，促进可持续的纳米技术产业

• 批准号: 479090-2015
• 负责人: Ghoshal, Subhasis
• 金额: $ 13.6万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=641843
• 关键词: Promoting; sustainable; nanotechnology; industry; evaluating

Engineered nanoparticles (ENPs), which have at least one dimension in the range of 1-100 nm, are used in the manufacture of industrial and consumer products, to enable or enhance specific functions towards delivery of high performance products. Many ENP-containing products are directly exposed to the environment. As a result, ENPs may be released to the environment, particularly to aquatic ecosystems. Recently, some estimates have been provided from model predictions based on approximate worldwide production volumes, and materials flow analyses from the products to different environmental compartments. These studies suggest that levels of ENPs in the environment are close to levels that induce toxicity in aquatic organisms, and with increased production of ENPs in future years, are likely to cause adverse impacts to aquatic ecosystem health. In this study we will assess the release of ENPs from paint and paperboard products. When outdoor paint is exposed to precipitation (rain and snow) along with harsh weathering by sunlight, salt spray and freezing temperatures, ENPs may be released to water which may enter aquatic ecosystems. Similarly, when paperboard is exposed to paper recycling processes, ENPs from paper may be released with effluents to water bodies. In this study we will develop analytical methods to measure ENP release. We will explore how the environmental behaviour and toxicity of these ENPs differ from the pristine ENPs that were used in the manufacture of the paint or paperboard products. The results will inform policies on the implementation of safe nanotechnology and will provide in-depth knowledge to our industrial partners and to policy markers on the impact of ENPs released from various products on aquatic ecosystems.

工程纳米颗粒（ENP），其具有至少一个在1-100 nm范围内的尺寸，用于制造工业和消费产品，以实现或增强特定功能，从而提供高性能产品。许多含ENP的产品直接暴露于环境中。因此，ENPs可能会释放到环境中，特别是水生生态系统。最近，根据全球大致产量的模型预测以及从产品到不同环境分区的物质流动分析，提供了一些估计数。这些研究表明，环境中的ENPs水平接近于对水生生物产生毒性的水平，随着未来几年ENPs产量的增加，可能会对水生生态系统健康造成不利影响。在这项研究中，我们将评估从油漆和纸板产品的ENPs的释放。当室外涂料暴露于降水（雨和雪）沿着阳光、盐雾和冰冻温度的恶劣风化时，ENP可能会释放到水中，从而进入水生生态系统。类似地，当纸板暴露于纸回收过程时，来自纸的ENP可随废水释放到水体中。在这项研究中，我们将开发分析方法来测量ENP的释放。我们将探讨这些ENPs的环境行为和毒性如何不同于用于制造油漆或纸板产品的原始ENPs。研究结果将为实施安全纳米技术的政策提供信息，并将为我们的工业合作伙伴和政策制定者提供关于各种产品释放的ENP对水生生态系统影响的深入了解。