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contamination

Of leaching, storm flushes and aquifers
Guy Trafford notes that while recent rains flush rivers, they also fill aquifers. But the time it takes to clear nitrates is vastly different between each system. And that sets up special risks for drinking water supplies
by Guy Trafford
12
Guy Trafford notes that while recent rains flush rivers, they also fill aquifers. But the time it takes to clear nitrates is vastly different between each system. And that sets up special risks for drinking water supplies
NZ milk powder in hot water
The fight to recover from contamination issues turning into a long-term risk
by David Chaston
3
The fight to recover from contamination issues turning into a long-term risk