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在回流和产生的水颗粒中的疏水性有机化学物质的识别和危险优先级:对水资源管理的影响

Huiju Lin¹, Cheng Zhong², Ran Wen³

¹School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong SAR, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China.

|October 30, 2024

概括

这项研究分析了水力压裂回流和产水 (HF-FPW) 中的疏水性有机化学物质. 许多发现的化学物质是HF数据库中的新物质,突出了水资源管理中的风险和知识差距.

科学领域:

环境化学环境化学
分析化学分析化学
毒理学毒理学毒理学

背景情况:

水力压裂回流和产生的水 (HF-FPW) 由于其复杂的化学成分,造成环境和健康风险.
了解高频FPW成分对于有效的管理和补救策略至关重要.

研究的目的:

为了识别和描述高频FPW (P-FPW) 颗粒阶段的疏水性有机化学品.
评估化学新性,并为毒理学评估优先考虑化合物.
识别当前与高频相关的化学数据库和行业监测中的差距.

主要方法:

使用气体染色学-轨道仪质谱法对P-FPW进行非目标选.
化学信息分析用于化学品的识别,分类和功能性使用评估.
应用毒理优先级指数 (ToxPi) 方案用于化学品优先级.

主要成果:

发现了5807种化学特征,209种被注释,主要是类和碳化合物.
三分之二的已识别/注释的化学物质对于现有的HF数据库来说是新鲜的.
使用ToxPi优先考虑的七种化学物质,其中八西甲酸得分最高.
在回流后24-48小时内观察到的化学强度峰值.

结论:

这项研究扩大了HF-FPW的化学覆盖范围,揭示了新的化合物.
优先考虑的化学品,通常缺乏毒理学数据,表明存在重大环境风险.
目前的高频行业监测可能会错过关键污染物,需要更新风险评估和管理方法.

关键词:

含有的化学品含有的化学品水力压裂是指水力压裂的方法.非目标分析分析.时间趋势趋势.毒理学优先级指数毒理学优先级指数治疗策略治疗策略

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