Figure 1
Figure 2
Figure 3
Results of chemical analysis of sediment samples from the Vistula Lagoon: total carbon (Ctot), organic carbon (Corg), black carbon (BC), and methane content ± standard deviation
| Site No | Ctot | Corg | BC | CH4 | |
|---|---|---|---|---|---|
| % | μmol dm-3 | ||||
| 1 | 3.08 | 2.49 | 0.43 | 12.4 | ± 2.4 |
| 2 | 2.69 | 1.85 | 0.42 | 23.6 | ± 1.9 |
| 3 | 2.00 | 1.32 | 0.33 | 9.3 | ± 2.9 |
| 4 | 2.18 | 1.38 | 0.37 | 7.1 | ± 2.2 |
| 5 | 2.53 | 1.99 | 0.28 | 25.8 | ± 2.0 |
| 6 | 0.17 | 0.13 | 0.01 | 14.8 | ± 2.5 |
| 7 | 2.78 | 1.81 | 0.38 | 6450 | ± 0.2 |
| 8 | 1.60 | 1.05 | 0.32 | 5140 | ±0.2 |
| 9 | 3.75 | 2.75 | 0.56 | 36.7 | ±2.2 |
Location of sediment sampling sites in the Polish part of the Vistula Lagoon and near-bottom water parameters during sediment sampling
| Location of sampling sites | water depth | temperature | transparency | oxygen | salinity | ||
|---|---|---|---|---|---|---|---|
| m | °C | m | mg dm-3 | PSU | |||
| 1 | 54°45’12.5’’ | 19°66’87.5’’ | 2.9 | 6.8 | 0.5 | 11.9 | 3.4 |
| 2 | 54°44’71.4’’ | 19°72’46.4’’ | 4.8 | 7.2 | 0.6 | 12.0 | 3.6 |
| 3 | 54°44’48.9’’ | 19°76’05.8’’ | 3.4 | 7.3 | 0.7 | 11.2 | 3.6 |
| 4 | 54°36’61.1’’ | 19°66’64.2’’ | 2.5 | 6.7 | 0.7 | 11.8 | 3.1 |
| 5 | 54°39’37.5’’ | 19°63’99.7’’ | 4.0 | 7.5 | 0.6 | 11.6 | 3.3 |
| 6 | 54°36’62.2’’ | 19°45’00.3’’ | 2.5 | 7.5 | 0.6 | 12.4 | 2.7 |
| 7 | 54°30’05.6’’ | 19°29’65.3’’ | 2.5 | 6.9 | 1.4 | 12.2 | 1.1 |
| 8 | 54°28’91.7’’ | 19°42’70.3’’ | 2.4 | 6.7 | 0.8 | 14.7 | 1.2 |
| 9 | 54°33’17.8’’ | 19°52’02.8’’ | 2.5 | 7.25 | 0.6 | 11.8 | 2.8 |