Analysis of Nano-plastics in Drinking water

多伦多大学进行的研究表明，饮用水中普遍存在微塑料；其中许多颗粒<45 μ m，目前可用的设备无法表征。所要求的热解装置将允许对<10 μ m的微塑料进行化学表征，以及纳米塑料（<1 μ m），由于它们能够在肠道内转运并在血液和重要器官中积累，因此特别值得关注。该设备将用于通过城市饮用水废水处理过程检查微塑料和纳米塑料的去除和命运，并与每年培训6-10名HQP直接相关。******在世界各地的环境样本和处理过的饮用水中都发现了微塑料。这些塑料中的大多数都很小（<125微米），这表明在处理过的饮用水中可能存在更多的“纳米”大小（<1微米）颗粒。除了上述与纳米塑料消费有关的健康风险外，由于其化学性质和高表面积质量比，预计这些颗粒还将成为吸附微污染物运输的载体。拟议的研究将侧重于确定环境样品和处理过的饮用水中纳米塑料的浓度和特性，以及确定各种常规和高级处理工艺去除纳米塑料的效率。这项研究的结果将引起供水供应商以及旨在将处理过的饮用水对消费者造成的风险降至最低的省级和联邦监管机构的极大兴趣。除了表征纳米塑料外，还将应用“大数据”或人工智能方法来更好地分析数据，这样就可以同时检查复杂的化合物混合物。******为了更全面地研究水处理系统，必须获得所要求的热解器，以便研究人员能够准确地表征纳米级塑料颗粒，从而更好地了解与其消耗相关的潜在风险。**

Research conducted at the University of Toronto has demonstrated the ubiquitous nature of microplastics in drinking water; many of these particles are <45 µm and unable to be characterized by currently available equipment. The requested pyrolyzer will allow for chemical characterization of microplastics <10 µm, as well as nanoplastics (<1 µm) which are of particular concern due to their ability to translocate across the gut and accumulate in the blood stream and vital organs. This equipment will be used to examine the removal and fate of micro- and nanoplastics through municipal drinking waster treatment processes and be directly associated with training 6-10 HQP annually.******Microplastics have been observed in environmental samples and treated drinking water around the world. The majority of these plastics are small (<125 µm) and it suggested that an even greater number of “nano”- sized (<1um) particles may be present in treated drinking water. In addition to the aforementioned health risks associated with nanoplastic consumption, it is anticipated that these particles will also serve as vectors for transport of sorbed micropollutants due to their chemical properties and high surface area to mass ratio. The proposed research will focus on determining the concentration and characterization of nanoplastics in environmental samples and treated drinking water, as well as determining the efficiency of various conventional and advanced treatment processes for the removal of nanoplastics. Results of this research will be of great interest to water providers, as well as provincial and federal regulators who aim to minimize the risk that treated drinking water poses to consumers. In addition to characterizing nanoplastics, work will be conducted to apply “big data” or artificial intelligence methods to better analyze data, such that complex mixtures of compounds may be examined simultaneously. ******In order for water treatment system to be more completely studied, the requested pyrolyzer must be acquired such that the researchers can accurately characterize nano-sized plastic particles, allowing potential risk associated with their consumption to be better understood. **