title: Wet deposition in Germany: long-term trends and the contribution of heavy metals.
abstract: As part of the program of the German Environmental Specimen Bank (ESB), precipitation is sampled on a weekly basis from eight sites in different ecosystems throughout Germany. The samples are analyzed for Na+, NH4+, K+, Mg2+, Ca2+, Cl-, NO3-, and SO4(2-) using ion chromatography with conductometrie detection Mn, Co, Ni, Cu, Zn, Cd, Pb, and Tl are determined by ICP-MS. In addition, pH and conductivity of the samples are measured. In this paper, the weekly and annual deposition in 1994 is compared for the different sampling sites and with literature data.
authors.affiliation: Institute of Applied Physical Chemistry, Research Center of Jülich, Germany.
authors.forename: A H
authors.initials: AH
authors.lastname: Grömping
authors.forename: P
authors.initials: P
authors.lastname: Ostapczuk
authors.forename: H
authors.initials: H
authors.lastname: Emons
mesh_terms: D018070:Biological Specimen Banks / Q000639:trends*; D011232:Chemical Precipitation; D017753:Ecosystem; D004553:Electric Conductivity; D004784:Environmental Monitoring / Q000379:methods*; D005858:Germany; D006863:Hydrogen-Ion Concentration; D019216:Metals, Heavy / Q000032:analysis*; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical