Table 1.
Average values of the 234U/238U activity ratio in environmental samples from the southern Baltic and Northern Poland
| Component | The values of the 234U/238U activity ratio | References |
|---|---|---|
| Baltic waters | [31, 32] | |
| Surface waters | 1.12–1.14 ± 0.02 | |
| Bottom water | 1.16–1.34 ± 0.03 | |
| Pore water | 1.17–1.18 ± 0.02 | |
| Baltic sediments | 0.48–1.27 ± 0.05 | [31, 32] |
| Baltic organisms | 1.04–1.39 ± 0.04 | [7, 33, 34] |
| Phytoplankton | 1.15 ± 0.01 | |
| Phytobenthos | 1.14 ± 0.01 | |
| Zooplankton | 1.15 ± 0.01 | |
| Zoobenthos | ||
| Crustacea | 1.15 ± 0.01 | |
| Clams (Bivalvia) | 1.39 ± 0.04 | |
| Fish | 1.12 ± 0.01 | |
| Baltic birds | 0.75–1.12 ± 0.03 | [35] |
| Liver | 0.69–1.07 ± 0.03 | |
| Muscles | 0.35–1.14 ± 0.02 | |
| Feathers | 0.90–1.15 ± 0.03 | |
| Skeleton | 0.72–1.25 ± 0.04 | |
| Skin | 0.96–1.17 ± 0.02 | |
| Rest of viscera | 0.55–1.12 ± 0.01 | |
| River waters | 1.00–1.94 ± 0.03 | [36, 37] |
| Deer-like animals | [38] | |
| Muscles | 0.76–1.33 ± 0.01 | |
| Liver | 0.81–1.41 ± 0.02 | |
| Kidneys | 0.61–1.42 ± 0.03 | |
| Phosphogypsum stockpile | ||
| Water samples | 1.00–1.10 ± 0.02 | [16–20] |
| Edible plants | 0.83–1.00 ± 0.03 | [16–20] |
| Ruderal and hygrophilous plants | 0.96–0.99 ± 0.03 | [16–18, 20] |
| Soil samples | 0.98–1.04 ± 0.03 | [16–18, 20] |
| Martwa Wisła River | 1.10–1.20 ± 0.04 | [16–20] |
| Edible plants from Czapielsk and Luzino | 0.99–1.04 ± 0.02 | [16–20] |
| Mosses from Sobieszewo Island | 0.97–1.00 ± 0.02 | [43] |