Water Framework Directive and Environmental Quality Standards

In the latest issue of AWE International Magazine, Claire Stone has written an article commenting on the current Water Framework Directive and Environmental Quality Standards and how they are challenging laboratories in terms of both detection techniques as well as limits of detection/quantitation.

A case in point which is considered in the piece is that of perfluorooctane sulfonate (PFOS) where the EQS level (and therefore the analytical level of interest) set is around 15 times lower than common laboratory detection limits. Whilst this can be achieved through improvements to the analytical method and the use of advanced instrumentation (LC-MS/MS), it should be noted that even clean waters have quite significant levels of PFOS.

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