ABSTRACT

Sampling with ceramic dosimeters (passive samplers, patent pending) is a new method which was developed for long-term, time-integrated monitoring of organic pollutants in groundwater and surface water. Artifacts which are common for other water sampling methods (e.g. during transportation, storage etc.) are avoided with this new sampling method and the number of necessary analyses is reduced to only a few while monitoring the contaminant concentrations (representative mean values) over the whole sampling period. This concept of time-integrated concentration measurements can be used equally for contaminant monitoring in groundwater as well as in rivers, lakes, waste water etc. The method has so far been developed and tested for polycyclic aromatic hydrocarbons (PAH), volatile chlorinated hydrocarbons and volatile aromatic compounds (BTEX), but can also be used for other organic and inorganic aqueous contaminants.