6 Quality Assessment of Water Resources of River in Poland
131
Table 6.3 (continued)
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
80 Drawa
311
176
1.6
7.2
1.27
0.089
81 Lower Note´ c, excluding
the Gwda and Drawa 1)
536
268
2.3
11.8
2.50
0.175
82 Small tributaries of the
lower Warta 1
451
234
2.3
22.9
1.20
0.140
83 My´ sla
558
298
2.1
18.0
2.33
0.070
84 Płonia
579
292
2.6
11.7
2.39
0.127
85 Ina
521
269
2.8
13.8
3.04
0.190
86 Small tributaries of the
lower Oder 1)
532
267
2.7
15.3
2.22
0.135
Table 6.4 Average (median) concentrations of selected physico-chemical indicators of water
pollution in catchments and subcatchments 1 of the Baltic Coast, Szczecin Lagoon, the Vistula
Lagoon (including the Pregola 2 catchment) and the Neman 3 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
87 Small tributaries of the
Szczecin Lagoon 1
448
213
2.5
14.9
2.38
0.140
88 Rega
433
215
1.7
9.1
2.36
0.108
89 Pars˛ eta
372
188
1.6
6.9
1.95
0.120
90 Wieprza
316
167
1.9
6.0
1.67
0.120
91 Słupia
308
164
2.7
4.9
1.73
0.115
92 Łupawa
313
161
2.6
5.4
2.33
0.130
93 Łeba
340
178
3.0
6.2
2.20
0.105
94 Reda
383
195
2.2
4.9
1.62
0.170
95 Small coastal rivers 1
447
205
2.6
8.9
2.18
0.202
96 Nogat 1
602
305
3.5
11.4
3.55
0.360
97 Elbl˛ ag
693
275
2.3
10.6
2.14
0.190
98 Pasł˛ eka
477
246
1.8
10.8
2.06
0.190
99 Small tributaries of the
Vistula Lagoon 1
553
245
3.0
11.8
2.50
0.200
100 Łyna 2
470
243
2.2
13.5
2.35
0.146
101 W˛ egorapa 2
321
240
2.7
12.4
2.20
0.100
102 Czarna Ha´ ncza 3
415
232
1.8
9.3
1.13
0.028