Dioxinbilanz für Hamburg

The sources and reservoirs of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/PCDF) in the city of Hamburg, Germany, in the year 1992 were identified and quantified combining analytical data of PCDD/PCDF with statistical data on annual fluxes of materials and products. Fluxes and amounts of PCDD/PCDF were estimated for the environmental compartments water, air, and soil. Dioxin emissions originating from industrial, commercial or private activities were also calculated. Together with the analysis of the specific regional nutrition data, the human exposurevia the various pathways could be determined. It could be shown that the total PCDD/PCDF intake of individuals in Hamburg was about the same as the national average. High annual fluxes of PCDD/PCDF connected with the trade of industrial products and the waste management and disposal: system in Hamburg obviously had no influence on the human intake of PCDD/PCDF.     

Occurrence and distribution of atmospheric organic micropollutants in conifer needles

The distribution of some chlorinated hydrocarbons(p,p′-DDT, p,p′-DDE,α-HCH,γ-HCH,HCB) in spruce (Picea abies) needles was investigated. A comparision of concentrations in the wax with that of the remaining needle and time-resolved washing of the needle-surface shows the distribution behaviour of these substances.     

Editorial: über die Zukunft deutschsprachiger wissenschaftlicher Zeitschriften

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