Eionet
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Concept: marker in the concept vocabulary
| Concept URI | http://www.eionet.europa.eu/gemet/concept/5056 |
|---|---|
| Preferred label | marker |
| Definition | 1) Small amount of an easily detected substance that can be used to follow and quantify the flow of materials or movement of organisms not otherwise visible or detectable by ordinary means. 2) An isotope of an element, a small amount of which may be incorporated into a sample of material in order to follow the course of that element through a chemical, biological, or physical process, and thus also follow the larger sample. The tracer may be radioactive, in which case observations are made by measuring the radioactivity. |
| Notation | |
| Status | Valid |
| Status Modified | 2013-12-05 |
| Accepted Date | 2013-12-05 |
| Not Accepted Date | |
| Alternative label | |
| Has broader | |
| Has narrower | |
| Has close match | |
| Source |
European Environment Agency
Kgs. Nytorv 6, DK-1050 Copenhagen K, Denmark