Riverine inputs and direct discharges to Norwegian coastal waters - 2008

Abstract

Riverine inputs and direct discharges to Norwegian seas in 2008 have been estimated, in accordance with the requirements of the OSPAR Commission. Nutrient inputs from both rivers and point sources (industry, sewage treatment plants and fish farming) have increased slightly compared to the previous four years. In some rivers, however, nutrient concentrations have decreased since 1990. The direct discharges of metals from industry and sewage treatment plants have decreased significantly in recent years, and there are also examples of reductions of metal loads in rivers. Copper discharges from fish farming have increased since 2000, but in several rivers the concentrations of copper have been reduced. Inputs of PCBs and the pesticide lindane are insignificant.