How safe is drinking water?

饮用水有多安全？

• 批准号: 312570-2008
• 负责人: Gabryelski, Wojciech
• 金额: $ 1.46万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=396923
• 关键词: How; safe; drinking; water

Drinking water is a complex mixture of many thousands of naturally occurring and anthropogenic chemicals. A large group of water contaminants have been identified and hazardous pollutants are regulated, but many currently unidentified chemicals in water could pose a threat to the environment and human health. The identification and investigation of these emerging contaminants in water is the objective of our NSERC-funded research program. For this purpose, we use powerful analytical techniques based on combining the technologies of Ultra High Performance Liquid Chromatography (UPLC), Electrospray Ionization (ESI), High Field Asymmetric Waveform Ion Mobility Spectrometry (FAIMS), and Quadrupole-time-of-flight-Mass Spectrometry (QTOF-MS). These techniques are capable of separating, detecting, and identifying chemical pollutants present in water even at sub-parts-per-billion concentrations in a quick and convenient fashion. Using these unique analytical capabilities, we will investigate a group of recently discovered hydroxycarboxylic acids as well as N-nitrosamines and other nitrogen-containing emerging pollutants in drinking water in Ontario. We will also evaluate bottled drinking water with respect to priority pollutants such as phthalic acid diesters (plasticizers), bisphenol A, and their degradation and chlorination products. Our research will provide comprehensive information on formation, occurrence, fate, and environmental impact of investigated pollutants and improve the quality and safety of drinking water.

饮用水是一个复杂的混合物，有数千种自然产生的和人为的化学物质。 大量的水污染物已被确定，有害污染物也受到管制，但水中许多目前尚未确定的化学物质可能对环境和人类健康构成威胁。 识别和调查水中这些新出现的污染物是我们NSERC资助的研究项目的目标。 为此，我们采用了基于超高效液相色谱（UPLC）、电喷雾离子化（ESI）、高场不对称波形离子迁移谱（FAIMS）和四极杆飞行时间质谱（QTOF-MS）技术相结合的强大分析技术。 这些技术能够以快速和方便的方式分离、检测和识别水中存在的化学污染物，即使浓度低于十亿分之一。 利用这些独特的分析能力，我们将调查一组最近发现的羟基羧酸以及N-亚硝胺和其他含氮新兴污染物在安大略饮用水。 我们还将评估瓶装饮用水中的优先污染物，如邻苯二甲酸二酯（增塑剂）、双酚A及其降解和氯化产物。 我们的研究将提供有关调查污染物的形成，发生，归宿和环境影响的全面信息，并提高饮用水的质量和安全。