| River DANUBE, sampling station Rajka |
| Stream flow |
m³/s |
293.0 |
388.0 |
493.0 |
380.5 |
439.0 |
429.0 |
481.0 |
500.0 |
410.0 |
389.0 |
418.0 |
853.0 |
426.7 |
| Water temperature |
°C |
11.2 |
9.5 |
10.7 |
11.8 |
10.7 |
11.8 |
11.1 |
11.0 |
11.8 |
10.1 |
11.0 |
9.8 |
11.7 |
| Acidity |
pH |
8.0 |
8.2 |
8.3 |
8.2 |
8.1 |
8.1 |
8.2 |
8.1 |
8.0 |
8.2 |
8.0 |
7.9 |
8.0 |
| Dissolved oxygen |
mg O2/l |
9.6 |
9.7 |
10.8 |
9.5 |
9.7 |
9.7 |
9.5 |
10.4 |
10.5 |
11.5 |
10.7 |
11.2 |
10.4 |
| Oxygen saturation |
% |
87.0 |
84.0 |
98.0 |
88.0 |
86.0 |
89.0 |
86.0 |
93.3 |
96.5 |
102.9 |
95.9 |
97.1 |
94.5 |
| Biochemical oxygen demand, BOD5 (20°C, 5d) |
mg O2/l |
2.1 |
2.6 |
2.7 |
2.6 |
2.1 |
1.6 |
1.8 |
2.9 |
2.5 |
2.2 |
2.7 |
2.5 |
2.2 |
| Chemical oxygen demand, COD (K2Cr2O7) |
mg O2/l |
12.0 |
13.0 |
10.0 |
10.0 |
10.0 |
10.0 |
10.0 |
10.1 |
9.3 |
9.7 |
9.8 |
11.0 |
9.0 |
| Total suspended solid |
mg/l |
42.0 |
29.0 |
42.0 |
17.0 |
34.0 |
36.0 |
27.0 |
26.9 |
17.5 |
18.6 |
33.6 |
69.0 |
29.0 |
| Chloride |
mg/l |
252.0 |
274.0 |
254.0 |
244.0 |
261.0 |
248.0 |
289.0 |
263.4 |
248.9 |
268.5 |
262.2 |
284.7 |
242.4 |
| Total nitrogen |
µg N/l |
3 100.0 |
3 320.0 |
2 653.0 |
4 456.0 |
3 882.0 |
3 850.0 |
3 600.0 |
3 506.3 |
2 912.8 |
3 260.9 |
2 356.9 |
2 726.2 |
2 431.7 |
| Nitrates (NO3) |
µg NO3/l |
9 228.5 |
11 464.9 |
8 981.5 |
8 431.3 |
9 390.3 |
8 510.0 |
8 300.0 |
9 060.5 |
8 523.3 |
8 637.4 |
8 276.3 |
8 581.2 |
7 746.3 |
| Ammonium (NH4) |
µg N/l |
90.0 |
86.0 |
78.0 |
74.0 |
72.0 |
80.0 |
63.8 |
80.7 |
52.3 |
64.1 |
46.5 |
46.2 |
34.2 |
| Total phosphorus |
µg P/l |
95.0 |
92.0 |
107.0 |
99.0 |
119.0 |
105.0 |
115.0 |
135.2 |
83.5 |
105.1 |
151.9 |
253.8 |
97.5 |
| Orthophosphates |
µg P/l |
74.0 |
71.0 |
43.0 |
44.0 |
37.0 |
50.0 |
40.0 |
42.7 |
29.4 |
37.7 |
43.5 |
95.5 |
41.1 |
| Chlorophyll-a (summer) |
µg /l |
11.4 |
19.8 |
22.2 |
30.5 |
23.4 |
16.6 |
20.9 |
17.7 |
15.1 |
22.5 |
22.6 |
14.8 |
16.4 |
| Coliform-counts |
n/100 ml |
1 150.0 |
1 293.0 |
469.0 |
1 796.0 |
902.0 |
580.0 |
850.0 |
1 485.5 |
436.7 |
401.7 |
460.0 |
600.0 |
.. |
| River DRÁVA, sampling station Drávaszabolcs |
| Stream flow |
m³/s |
479.0 |
598.0 |
437.0 |
513.0 |
588.0 |
549.0 |
464.0 |
410.6 |
348.8 |
501.6 |
474.1 |
326.7 |
338.0 |
| Water temperature |
°C |
12.1 |
11.9 |
12.5 |
12.6 |
12.7 |
13.1 |
13.3 |
13.6 |
13.9 |
12.3 |
12.6 |
5.8 |
13.2 |
| Acidity |
pH |
8.2 |
8.2 |
8.2 |
8.1 |
8.1 |
8.2 |
8.2 |
8.1 |
8.0 |
8.0 |
8.0 |
7.9 |
.. |
| Dissolved oxygen |
mg O2/l |
9.8 |
10.6 |
10.1 |
9.8 |
9.8 |
9.5 |
9.8 |
9.8 |
10.8 |
9.9 |
9.9 |
11.6 |
9.8 |
| Oxygen saturation |
% |
91.0 |
97.0 |
93.0 |
91.0 |
91.0 |
89.0 |
93.0 |
92.8 |
103.9 |
90.5 |
90.9 |
92.2 |
92.1 |
| Biochemical oxygen demand, BOD5 (20°C, 5d) |
mg O2/l |
3.5 |
3.1 |
3.3 |
3.0 |
2.9 |
2.9 |
2.6 |
2.3 |
3.0 |
2.4 |
2.1 |
3.6 |
1.6 |
| Chemical oxygen demand, COD (K2Cr2O7) |
mg O2/l |
9.0 |
11.0 |
9.0 |
9.0 |
11.0 |
8.0 |
7.0 |
7.1 |
8.4 |
7.7 |
8.8 |
10.0 |
9.2 |
| Total suspended solid |
mg/l |
25.0 |
21.0 |
15.0 |
22.0 |
30.0 |
17.0 |
14.0 |
12.6 |
11.5 |
9.7 |
18.3 |
11.0 |
14.0 |
| Chloride |
mg/l |
230.0 |
211.0 |
240.0 |
232.0 |
298.0 |
.. |
.. |
180.0 |
.. |
.. |
.. |
.. |
.. |
| Total nitrogen |
µg N/l |
2 600.0 |
2 594.0 |
1 989.0 |
2 241.0 |
1 975.0 |
1 710.0 |
1 630.0 |
1 697.5 |
1 638.9 |
1 684.3 |
1 700.0 |
2 330.0 |
1 741.4 |
| Nitrates (NO3) |
µg NO3/l |
8 180.0 |
7 240.0 |
6 060.0 |
6 300.0 |
6 500.0 |
5 370.0 |
5 000.0 |
5 241.7 |
5 029.1 |
5 865.4 |
6 316.7 |
6 320.4 |
5 111.5 |
| Ammonium (NH4) |
µg N/l |
70.0 |
53.0 |
67.0 |
55.0 |
47.0 |
60.0 |
50.0 |
75.8 |
79.6 |
43.5 |
50.8 |
56.9 |
39.1 |
| Total phosphorus |
µg P/l |
129.0 |
156.0 |
135.0 |
120.0 |
143.0 |
119.0 |
95.0 |
97.1 |
82.7 |
83.5 |
85.4 |
84.3 |
74.3 |
| Orthophosphates |
µg P/l |
58.0 |
50.0 |
46.0 |
60.0 |
59.0 |
60.0 |
45.0 |
39.5 |
30.2 |
45.0 |
44.9 |
41.2 |
40.0 |
| Chlorophyll-a (summer) |
µg /l |
8.6 |
19.2 |
13.3 |
10.9 |
8.7 |
10.4 |
14.9 |
15.8 |
32.9 |
8.8 |
10.6 |
9.3 |
12.8 |
| Coliform-counts |
n/100 ml |
3 070.0 |
3 539.6 |
1 248.3 |
724.8 |
790.8 |
1 450.0 |
390.0 |
395.9 |
1 215.0 |
203.8 |
793.3 |
140.0 |
78.0 |
| River TISZA, sampling station Tiszabecs |
| Stream flow |
m³/s |
286.0 |
173.0 |
204.0 |
288.0 |
212.0 |
161.0 |
375.0 |
256.2 |
109.2 |
232.7 |
190.5 |
223.6 |
215.0 |
| Water temperature |
°C |
9.9 |
9.2 |
9.4 |
9.7 |
10.1 |
10.5 |
10.4 |
10.4 |
10.1 |
10.0 |
9.5 |
10.5 |
13.9 |
| Acidity |
pH |
7.9 |
7.9 |
7.8 |
7.8 |
7.6 |
7.8 |
7.8 |
7.8 |
7.7 |
7.7 |
7.6 |
7.6 |
7.6 |
| Dissolved oxygen |
mg O2/l |
11.3 |
11.1 |
12.6 |
12.1 |
12.7 |
14.0 |
14.2 |
14.5 |
17.4 |
12.8 |
12.0 |
9.9 |
10.1 |
| Oxygen saturation |
% |
98.0 |
95.0 |
110.0 |
105.0 |
112.0 |
126.0 |
128.0 |
129.6 |
152.0 |
113.7 |
105.7 |
89.4 |
94.7 |
| Biochemical oxygen demand, BOD5 (20°C, 5d) |
mg O2/l |
1.9 |
1.5 |
2.0 |
2.6 |
3.6 |
2.8 |
3.6 |
2.8 |
2.9 |
3.4 |
3.5 |
4.1 |
2.8 |
| Chemical oxygen demand, COD (K2Cr2O7) |
mg O2/l |
8.0 |
5.0 |
7.0 |
10.0 |
12.0 |
9.0 |
13.0 |
10.3 |
10.0 |
12.2 |
12.0 |
13.4 |
18.0 |
| Total suspended solid |
mg/l |
54.0 |
46.0 |
54.0 |
58.0 |
36.0 |
53.0 |
163.0 |
55.4 |
27.3 |
41.2 |
68.7 |
45.9 |
26.8 |
| Chloride |
mg/l |
232.0 |
261.0 |
177.0 |
182.0 |
210.0 |
224.0 |
216.0 |
219.5 |
268.8 |
240.2 |
327.4 |
313.9 |
207.0 |
| Total nitrogen |
µg N/l |
1 030.0 |
884.0 |
828.0 |
1 000.0 |
870.0 |
860.0 |
870.0 |
1 026.2 |
880.8 |
811.5 |
758.1 |
740.4 |
1 409.0 |
| Nitrates (NO3) |
µg NO3/l |
4 100.0 |
3 410.0 |
2 920.0 |
3 390.0 |
2 840.0 |
2 660.0 |
2 770.0 |
3 500.0 |
2 940.0 |
3 103.8 |
2 819.2 |
2 750.0 |
2 316.1 |
| Ammonium (NH4) |
µg N/l |
20.0 |
32.0 |
80.0 |
60.0 |
68.0 |
60.0 |
40.0 |
55.4 |
79.2 |
53.5 |
58.5 |
52.1 |
98.5 |
| Total phosphorus |
µg P/l |
67.0 |
84.0 |
71.0 |
21.0 |
66.0 |
50.0 |
128.0 |
75.3 |
61.7 |
117.0 |
75.4 |
82.1 |
.. |
| Orthophosphates |
µg P/l |
45.0 |
49.0 |
54.0 |
13.0 |
49.0 |
29.0 |
50.0 |
40.8 |
31.7 |
31.9 |
30.2 |
30.3 |
11.8 |
| Chlorophyll-a (summer) |
µg /l |
23.4 |
4.4 |
3.6 |
2.7 |
2.6 |
2.0 |
2.0 |
1.9 |
3.6 |
1.9 |
2.6 |
1.7 |
3.6 |
| Coliform-counts |
n/100 ml |
845.0 |
525.7 |
40 271.7 |
2 863.3 |
4 471.4 |
2 040.0 |
1 390.0 |
917.5 |
1 834.3 |
1 440.0 |
646.0 |
792.5 |
725.0 |