Abstract
Small bulk aerosol collectors were used to sample dry deposition during ten research cruises on the North Sea. Concentrations of sodium, magnesium, cadmium, lead, copper, aluminum, iron, and zinc were determined in the aerosol samples collected over a ten-month period in 1988 89. The highest concentrations of antropogenically derived material were associated with winds from the European sector. A northeast southwest gradient was found, with a decrease in concentration toward the center of the North Sea basin. A 90% contribution to the dry-deposition flux was attributable to particles greater than 4 mu m. with airborne concentration fields derived from the filter samples, metal fluxes to the North Sea were determined. The dry-deposition flux to the southern region was estimated to account for 60 70% of the total. Total dry-deposition flux was found to be much less than earlier published estimates. All elemental concentration and flux data are tabulated.