4 Management of Surfaces Water Resources—Ecological Status …
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0
2
4
6
8
10
12
minimum
medium
maximum
minimum
medium
maximum
minimum
medium
maximum
2015
2016
2017
Secon – outlet Mureș
Secon - Ungheni/Mureș
Secon – outlet Iernut
Fig. 4.5 CBO 5 (biochemical oxygen consumption over 5 days) (mgO 2 /l)
0
10
20
30
40
50
60
70
80
90
minimum
medium
maximum
minimum
medium
maximum
minimum
medium
maximum
2015
2016
2017
Secon – outlet Mureș
Secon - Ungheni/Mureș
Secon – outlet Iernut
Fig. 4.6 CCO-Cr (oxygen consumption) (mgO 2 /l)
4.5 Conclusions
Assessment of the ecological status and chemical status of water bodies in accordance
with the requirements.
The Water Framework Directive is considered to be a major challenge, as for the
first time, it is necessary to apply methods of analysis and evaluation at a European
and national level which comply with the principles of Directive 2000/60/EC. At a