Riverine inputs and direct discharges to Norwegian coastal waters - 2007. OSPAR Commission

Abstract

The report presents results from the 2007 monitoring of 46 Norwegian rivers in accordance with the requirements of the OSPAR Commission. Riverborne inputs of nutrients, suspended particulate matter, total organic carbon, silicate, metals (Cd, Hg, Pb, Cu, Zn, As), PCB7 and the pesticide lindane to Norwegian coastal waters are calculated based on concentration and flow data. In addition, the inputs from rivers not monitored, as well as direct discharges to marine waters along the coast from Sweden in the south to Russia in the north have been estimated. In general, there was an overall increase of inputs from 2006 to 2007 of most substances monitored in the RID Programme. The increases are within normal variations from year-to-year, and mainly caused by increased riverine water discharges and increased reporting of industrial discharges.