Figure 1
Surface water sampling area to investigate the temporal dynamics of PAH concentration changes. X - water sampling points
Figure 2
Stationary phase structure of the HPLC column used in the study
Table 1
Average PAH content (ng dm−3) in the tested water sample from River Bug (n = 5)
| Compound | Mean ± SD | |||
|---|---|---|---|---|
| January | April | June | September | |
| Na | – | 12.1 ± 3.7 | 11.2 ± 4.1 | 11.3 ± 2.1 |
| Ace | 28.1 ± 6.7 | 29.6 ± 8.2 | 10.5 ± 2.8 | 11.8 ± 3.2 |
| Acn | 21.8 ± 9.2 | – | 12.4 ± 3.6 | 9.6 ± 3.1 |
| Flu | 12.4 ± 4.5 | – | – | – |
| Fen | 27.2 ± 11.4 | 10.3 ± 3.6 | – | – |
| An | – | 13.1 ± 4.1 | 15.6 ± 4.3 | 10.9 ± 2.9 |
| Fl | 18.7 ± 5.2 | 10.3 ± 4.5 | 11.8 ± 2.9 | 6.8 ± 2.6 |
| Pir | 20.6 ± 5.9 | – | 24.7 ± 8.1 | 15.7 ± 4.7 |
| B(a)A | – | 15.6 ± 3.9 | – | – |
| Ch | – | 11.1 ± 2.7 | 11.4 ± 3.7 | 6.9 ± 2.5 |
| B(b)F | 22.0 ± 6.1 | – | – | – |
| B(k)F | – | – | 19.6 ± 5.2 | – |
| B(a)P | 14.1 ± 3.9 | 10.2 ± 3.8 | 7.8 ± 3.3 | 5.5 ± 3.1 |
| D(ah)A | – | – | – | – |
| B(ghi)P | 19.5 ± 5.4 | 13.9 ± 3.3 | 5.7 ± 2.2 | 3.2 ± 2.4 |
| IP | – | – | – | – |
| ∑ PAHs | 184.4 ± 58.3 | 126.2 ± 37.8 | 130.7 ± 40.2 | 81.7 ± 26.6 |
[i] – not detected
Table 2
Average PAH content (ng dm−3) in the tested water sample from River Muchawka (n = 5)
| Compound | Mean ± SD | |||
|---|---|---|---|---|
| January | April | June | September | |
| Na | 11.8 ± 5.1 | 16.1 ± 4.3 | 17.2 ± 4.7 | 3.7 ± 1.8 |
| Ace | 12.6 ± 4.3 | 15.3 ± 4.1 | – | 1.1 ± 1.1 |
| Acn | – | – | 6.9 ± 3.1 | 7.3 ± 2.3 |
| Flu | – | 4.5 ± 2.8 | 1.8 ± 2.3 | – |
| Fen | 13.4 ± 3.9 | – | 5.2 ± 2.8 | 3.9 ± 1.6 |
| An | 11.7 ± 2.6 | – | – | 6.7 ± 1.8 |
| Fl | 11.3 ± 3.2 | 11.6 ± 3.9 | 1.3 ± 2.1 | – |
| Pir | 11.2 ± 4.1 | – | 12.5 ± 3.1 | 7.8 ± 2.1 |
| B(a)A | – | 8.2 ± 3.6 | – | 4.6 ± 2.1 |
| Ch | – | – | – | 1.2 ± 1.1 |
| B(b)F | 12.8 ± 3.8 | 17.3 ± 4.4 | 9.6 ± 3.2 | 10.2 ± 4.2 |
| B(k)F | 4.9 ± 2.5 | – | – | – |
| B(a)P | – | – | 0.1 ± 1.6 | – |
| D(ah)A | – | – | – | – |
| B(ghi)P | 7.5 ± 2.7 | 1.3 ± 2.3 | 0.1 ± 1.3 | – |
| IP | – | – | – | – |
| ∑ PAHs | 97.2 ± 32.2 | 74.3 ± 25.4 | 54.7 ± 24.2 | 46.5 ± 18.1 |
[i] – not detected
Table 3
Average PAH content (ng dm−3) in the tested water sample from River Liwiec (n = 5)
| Compound | Mean ± SD | |||
|---|---|---|---|---|
| January | April | June | September | |
| Na | 13.4 ± 4.2 | 12.6 ± 3.1 | 14.5 ± 3.3 | 11.3 ± 3.7 |
| Ace | 13.8 ± 3.6 | 15.1 ± 4.2 | – | 5.6 ± 2.1 |
| Acn | – | 1.6 ± 1.2 | 7.4 ± 3.4 | 10.9 ± 3.2 |
| Flu | 11.2 ± 3.3 | 14.5 ± 4.8 | 10.1 ± 2.8 | 6.8 ± 1.7 |
| Fen | – | 10.3 ± 3.6 | 10.3 ± 3.1 | 2.1 ± 1.2 |
| An | 11.1 ± 4.1 | – | 1.1 ± 1.2 | – |
| Fl | – | 9.2 ± 3.2 | – | – |
| Pir | 4.3 ± 2.3 | – | – | 5.2 ± 1.8 |
| B(a)A | 11.4 ± 3.1 | 12.2 ± 3.4 | 3.8 ± 2.1 | 2.7 ± 1.4 |
| Ch | 5.1 ± 2.5 | 1.2 ± 1.0 | – | – |
| B(b)F | – | 4.1 ± 1.8 | 7.4 ± 2.5 | 3.4 ± 2.1 |
| B(k)F | 10.9 ± 4.3 | – | 2.3 ± 1.4 | 2.4 ± 2.2 |
| B(a)P | 10.2 ± 3.8 | – | 0.1 ± 1.1 | 1.2 ± 1.1 |
| D(ah)A | 3.5 ± 2.1 | 1.1 ± 1.1 | – | – |
| B(ghi)P | – | – | 0.1 ± 1.0 | – |
| IP | – | – | – | – |
| ∑ PAHs | 94.9 ± 33.3 | 81.9 ± 27.4 | 57.1 ± 21.9 | 51.6 ± 20.5 |
[i] – not detected
Figure 3
Dynamics of PAH concentration changes over time in the analysed surface water of each surveyed river