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State of the Environment in Riga 2001
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  Water
 
Figure 36.  The comparison of Ptot., BOD5, NH4/N and NO2/N mean values of Daugava River estuary with target values of Cyprinidae waters   
 

 

 

 

 



 

 

Source: Latvian Hydrometeorological Agency
 

 

 

 

This page was last updated: 2003.03.31.