Semipermeable membrane devices

Water chemical measurement tools

Semipermeable membrane devices (SPMD) are passive sampling devices used to monitor trace levels of organic compounds with a log Kow > 3. SPMDs are an effective way of monitoring the concentrations of chemicals from anthropogenic runoff and pollution in the marine environment because of their ability to detect minuscule levels of chemical. The data collected from a passive sampler is important for examining the amount of chemical in the environment and can therefore be used to formulate other scientific research about the effects of those chemicals on the organisms as well as the environment. Examples of chemicals commonly measured using SPMDs include: PAHs, PCBs, PBDEs, dioxins and furans as well as hydrophobic waste-water effluents like fragrances, triclosan, and phthalates.

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