Danmark
Name of the parameter |
Vestergaardskolen viby (mg/l) |
EU (mg/l) |
Ammonium |
0,00 - 0,20 (3,00)* |
0,50 |
Carbonate |
12 – 20 d |
- |
Nitrate |
1 – 10 |
50 |
Nitrite |
0,03 – 0,07 |
0,50 |
pH |
7,00 – 8,00 |
6,50 – 9,50 |
Phosphate |
0,00 – 0,70 |
6,70 |
Oxygen |
60 – 80 % |
<75 % # |
Chloride |
20 – 60 |
250 |
Iron |
0,07 – 0,50 |
0,20 |
Aluminium |
0,00 |
0,20 |
Copper |
0,00 – 0,10 |
2,00 |
*only one station
#the limit is defined for drinking water.
The Netherlands
Name of the parameter |
Dollard College (mg/l) |
EU (mg/l) |
Ammonium |
0,20 - 0,90 (2,10)* |
0,50 |
Carbonate |
9 d – 13 d |
- |
Nitrate |
0,00 |
50 |
Nitrite |
0,20 – 0,50 |
0,50 |
Phosphate |
0,00 – 0,30 |
6,70 |
Oxygen |
80% |
< 75% # |
Chloride |
12 – 60 |
250 |
Iron |
0,00 |
0,20 |
Aluminium |
0,00 |
0,20 |
Copper |
0,00 – 0,20 |
2,00 |
*only one station
#the limit is defined for drinking water.
Germany
Name of the parameter |
Altenburg/Grossefehn/Quakenbrueck/Wittmund (mg/l) |
EU (mg/l) |
Ammonium |
0,00 – 1,00 (3,00)* |
0,50 |
Carbonate |
0 – 18 d |
- |
Nitrate |
0,00 - 90 |
50 |
Nitrite |
0,00 – 0,80 |
0,50 |
Phosphate |
0,00 – 0,70 |
6,70 |
Oxygen |
40 – 65 % |
< 75% # |
Chloride |
0 - 60 |
250 |
Iron |
0,00 – 0,50 (2,00)* |
0,20 |
Aluminium |
0,00 (7,00)* |
0,20 |
Copper |
0,00 – 0,10 (8,00)* |
2,00 |
*only one station
#the limit is defined for drinking water.
Poland
Name of parameter |
Zespol Szkol Dobre Miasto (mg/l) |
EU (mg/l) |
Ammonium |
0,50 - 0,70 |
0,50 |
Nitrate |
5 – 10 |
50 |
Nitrite |
0,00 (10,00)* |
0,50 |
pH |
7,00 – 7,50 |
6,5 – 9,5 |
Phosphate |
0,10 – 1,00 |
6,70 |
Oxygen |
86 % |
< 75% # |
Chloride |
3 – 10 |
250 |
Iron |
0,00 (0,50)* |
0,20 |
Aluminium |
0,00 – 0,30 |
0,20 |
Copper |
0,00 – 0,10 |
2,00 |
*only one station
#the limit is defined for drinking water.
Spain
Name of the parameter |
Juan Comenius/Escuela2/Escolagavina (mg/l) |
EU (mg/l) |
Ammonium |
0,00 – 0,70 (3,00)* |
0,50 |
Carbonate |
10 – 18 d |
- |
Nitrate |
0,00 - 30 |
50 |
Nitrite |
0,00 – 0,50 |
0,50 |
Phosphate |
0,00 – 2,00 |
6,70 |
Oxygen |
20 – 97 % |
< 75% # |
Chloride |
5 - 60 |
250 |
Iron |
0,00 – 0,30 |
0,20 |
Aluminium |
0,00 – 0,10 |
0,20 |
Copper |
0,00 – 0,10 |
2,00 |
*only one station
#the limit is defined for drinking water.
It should be highlighted the presence of iron in the irrigation ditch of Rascanya above the permitted parameters established in mg/l. It seems a punctual waste or there is a seasonal reason as a further analysis shows the iron concentration.
We also found high ammonium concentration in the Albufera (3 mg/l versus to 0,5 mg/l permitted). It could be due to the use of fertilizers in the fields of rice close to the lagoon.
The variations of the values, especially for ammonium and iron, can not directly correlated with environmental impacts, because there is a lack of accurancy in the analyzing system (in all countries the same range of variation could be observed).
Therefore for the surface water in all countries the parameters measured are in a good range, within the limits of the EU.
The variation of the oxygen values are big, because the measurements were taken in winter and summer. There a no informations for the values of the EU for the seasonal variations.