The Nation-wide Danish Monitoring Programme (BOP)

"The Nation-wide Danish Monitoring Programme" assembles information on nutrient input to the aquatic systems. Measurements are performed at 8 different locations. These locations are selected to represent coastal and island based areas and inland areas. At all sites precipitation is collected over half-monthly periods by bulk collectors. The samples are analyzed for their content of nutrients and metal ions. Furthermore, 7 stations are equipped with filter pack samplers to collect compounds in gas or in particle phase

The programme was started in 1989, and results from 7 years including 1995 data are reported in the annual report for 1995 (Skov et al. 1996). The report primarily deals with atmospheric nitrogen input to the Danish marine waters, focusing on the nitrogen input to the Danish straits, sounds and fjords (the inner Danish seas) with a total sea surface area of 37,470 km2. Wet deposition is measured over half-monthly periods by bulk collectors and the samples are analyzed in the ATMI-Iaboratory. Gas phase components and particles are collected by the filterpack on filters and the filters are analyzed by the department.

Table 1: Stations in the Nation-wide Danish Monitoring Program 1996

Station

UTM-
x

coordinates
y

Type

Local sources

Program

Tange537 6246 forestagriculture precip.,gas, aerosol
Anholt657 6287 coastfewprecip.,gas, aerosol
Keldsnor611 6066 coast agricultureprecip.,gas, aerosol
Lille Valby696 6176 farmlandRoskilde
(40,000 inhab.)
precip.gas, aerosol
Pedersker880 6113 coastfewprecipitation

For further information please contact henrik.skov@dmu.dk


The Ion-balance program

Routine measurements are also perfomed in the Ion-balance Program, which is a research program linked to BOP. Gas, aerosol and precipitation samples are collected and analysed in the same way as in BOP.

Table 2: Stations in the Ion-balance Program 1996

Station

UTM-
x

coordinates
y

Type

Local sources

Program

Ulborg465 6239 forest few precip.,gas,aerosol
Frederiksborg709 6206 forestHillerød
(25,000 inhab.)
precip.gas, aerosol
Lindet493 6111 forestagricultureprecip.,gas, aerosol
Hansted 14566298heath/coastfew precipitation
Hansted 24736322forest/coastfew precipitation
Husby4476239coastfew precipitation
Sebstrup Sande5266215forest/heathfew precipitation
Store Ebberup6666152forestfew precipitation
Almindingen8766125forest(agriculture) precipitation

For further information please contact mads.hovmand@dmu.dk


References

Skov, H. et al. (1995). Atmospheric deposition of nitrogen, Vandmiljøplanens Overvågningsprogram 1994. NERI Technical Report No. 113. National Environmental Research Institute, Roskilde, Denmark. (in Danish)
Skov, H. et al. (1996). Atmospheric deposition of nitrogen, Vandmiljøplanens Overvågningsprogram 1995. NERI Technical Report No. 173 and 174. National Environmental Research Institute, Roskilde, Denmark. (in Danish)


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Updated 970828, K. Kemp