6 Quality Assessment of Water Resources of River in Poland
127
Table 6.2 Average (median) concentrations of selected physico-chemical indicators of water
pollution in the catchments and subcatchments 1 of the Vistula basin in 2010–2015 (own calculations
according to data from Voivodeship Inspectorates for Environmental Protection)
SEC
(20 °C)
Hardness
BOD 5
TOC
TN
TP
No. Catchments/subcatchments µS/cm mgCaCO 3 /L mgO 2 /L mgC/L mgP/L mgN/L
1
Mała Wisła and Biała 1
283
102
2.8
5.1
2.61
0.120
2
Soła
170
87
1.6
2.2
0.99
0.020
3
Skawa
274
129
1.7
2.9
1.80
0.050
4
Raba
378
184
1.8
3.2
1.47
0.061
5
Dunajec
332
175
1.8
2.4
1.16
0.047
6
Wisłoka
345
183
1.9
4.3
1.62
0.085
7
Przemsza
724
321
2.9
8.9
4.10
0.180
8
Nida
464
205
2.1
8.0
3.42
0.120
9
Czarna
438
214
2.6
8.9
2.52
0.130
10 Small right tributaries of
the upper Vistula 1
470
204
2.6
9.0
2.91
0.137
11 Small left tributaries of the
upper Vistula 1
627
315
2.4
6.6
3.79
0.158
12 Small tributaries of the
San 1
372
197
2.2
6.2
1.69
0.097
13 Wisłok
511
259
2.6
5.2
2.48
0.122
14 Lubaczówka
330
176
2.2
7.0
1.52
0.098
15 Tanew
320
169
3.4
8.1
1.80
0.120
16 Kamienna
404
160
2.4
7.7
2.86
0.130
17 Radomka
455
233
2.9
10.2
2.90
0.165
18 Pilica
345
172
2.5
9.4
2.20
0.120
19 Wieprz
530
279
3.2
9.2
2.50
0.160
20 ´
Swider
472
229
3.5
9.3
3.03
0.149
21 Small right tributaries of
the middle Vistula 1
530
261
3.4
8.7
3.24
0.181
22 Small left tributaries of the
middle Vistula 1
586
273
4.3
8.9
3.40
0.224
23 Huczwa
725
385
2.9
10.0
2.35
0.110
24 Krzna
446
206
1.9
14.8
2.07
0.155
25 Liwiec
447
225
3.0
10.0
2.27
0.145
26 Nurzec
391
300
1.8
9.7
4.80
0.180
27 Small tributaries of the
Bug 1
594
227
3.5
10.5
2.58
0.170
28 Small tributaries of the
upper Narwa (to Biebrza) 1
475
263
2.7
12.8
3.34
0.180
(continued)