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acid rain
10
acidity
10
aquatic organisms
10
bacillariophyta
10
biological properties
10
biologische eigenschappen
10
canals
10
chemical composition
10
chemical properties
10
chemische eigenschappen
10
chemische samenstelling
10
droge depositie
10
dry deposition
10
kanalen
10
nederland
10
neerslag
10
netherlands
10
oppervlaktewater
10
pollution
10
precipitation
10
river water
10
rivers
10
rivieren
10
rivierwater
10
streams
10
surface water
10
verontreiniging
10
waterlopen
10
waterorganismen
10
zure regen
10
zuurgraad
10
Belgium
5
Dredge spoil
5
Dumping
5
Lower Sea Scheldt
5
Monitoring
5