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首页> 外文期刊>Environmental Science & Technology >Passive Sampler for Combined Chemical and Toxicological Long-Term Monitoring of Groundwater: The Ceramic Toximeter
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Passive Sampler for Combined Chemical and Toxicological Long-Term Monitoring of Groundwater: The Ceramic Toximeter

机译：用于地下水化学和毒理学长期监测的无源采样器：陶瓷毒物仪

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摘要

We present the development of a passive sampling device that combines chemical with biological assessment of water following time-integrating, long-term sampling. The new device, which was designated the Ceramic Toximeter, brings together the simplicity of the Ceramic Dosimeter as a ceramic membrane-based, solid-sorbent sampler and the uniqueness of a recently developed solid-phase, solvent-free bioassay. In this bioassay, Biosilon, i.e., polystyrene polymer beads, is used to present sorbed contaminants to vertebrate cells that adhere to the contaminant-loaded Biosilon and respond. Focusing on Biosilon as sorbent, its ability to accumulate 16 polycyclic aromatic hydrocarbons (PAHs) was explored. When tested up to 42 days in the laboratory or 1 year in groundwater at a contaminated gasworks site, Biosilon-filled Ceramic Toximeters yielded back-calculated time-weighted average aqueous PAH concentrations that agreed well with concentrations obtained by frequent snapshot sampling.
机译：我们介绍了一种无源采样设备的开发，该设备在经过时间积分的长期采样之后，结合了化学方法和对水的生物学评估。新设备被称为陶瓷毒物测定仪，将陶瓷剂量计的简单性（基于陶瓷膜的固体吸附剂采样器）与最近开发的无溶剂固相生物测定法的独特性结合在一起。在该生物测定中，使用Biosilon，即聚苯乙烯聚合物珠子，将吸附的污染物呈递给脊椎动物细胞，该脊椎动物细胞附着在负载了污染物的Biosilon上并作出反应。以Biosilon为吸附剂为重点，探索了其积累16种多环芳烃（PAHs）的能力。在充满污染的煤气厂在实验室中进行长达42天的测试或在地下水中测试1年后，填充生物硅的陶瓷毒物仪得出的反算时间加权平均PAH水溶液浓度与通过频繁快照采样获得的浓度非常吻合。

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