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Arctic
2
Hydraulic engineering
2
POPs
2
Svalbard
2
TC1-978
2
TD201-500
2
Water supply for domestic and industrial purposes
2
arctic watersheds
2
contamination
2
cross-border pollution
2
freshwater ecosystem
2
long-range transport
2
pollution
2
polycyclic aromatic hydrocarbon
2
volcanic eruptions
2
current-use contaminants
1
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