Marine sampling by scuba diving. 3. Sampling procedures for measurement of mercury concentrations in estuarine waters and seawater |
| |
| Authors: | Goran Kniewald &#x;eljko Kwokal Marko Branica |
| |
| Institution: | Goran Kniewald, ?eljko Kwokal,Marko Branica, |
| |
| Abstract: | A method for sampling estuarine waters and seawater by scuba diving is described. Samples taken from the Krka River Estuary on the eastern Adriatic coast were analysed for mercury content using cold vapour atomic absorption spectrometry (CVAAS). Mercury levels as low as 1 ng dm−3 were determined and these are among the lowest values reported to date. A simple contamination free procedure for the preconditioning of sample containers in the sea was applied. Sampling of water by divers is particularly useful when the intermediate layer in an estuary has to be identified and sampled, as well as for obtaining detailed vertical concentration profiles for mercury and other trace elements. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
