Traditionally, the disposition rate for long-range sulphur in Nova Scotia was about 16 to 18 kilograms per hectare. After the Clean Air Act, and after a number of coal-fired plants shut down, right now the disposition rate, and it depends who you talk to, is about 12 kilograms per hectare. The carrying capacity of Nova Scotia soils in the southern upland is eight. Acid rain has never left. If acid rain stopped tomorrow, the soils are so depleted it would probably take 100 years minimum to come back to where it was pre-industrial. We need liming to get our rivers back to their proper pH to keep the fish in the river.
Heather.