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Hafan
- Cynllunio ac ymchwil
  - Cynllunio
    - Planning policy
      - Rheoli a gwella’r amgylchedd dŵr
        
        How the water framework directive will happen
        
        Standards and objectives
        
        Water quality
        
        Figure 1: Ecological classification

Figure 1: Ecological classification of surface waters and quantitative and chemical status of groundwaters

Figure 1: Ecological classification of surface waters

Offer Tudalen

Dolenni cysylltiedig

Lawr lwytho

DATA - Figure 1: Ecological status of rivers (Microsoft Excel 0.01MB)