By Jan Schwarzbauer
It is understood for milleniums, that water is forming the primary base for the whole biosphere together with humans ('Thales [of Milet] says that it [the nature of items] is water' Aristoteles, Metaph. 983 b20), however, primarily the anthropogenic actions and human standards, particularly our huge, immense eat of chemical substances, are affecting around the globe the aquatic surroundings on a quickly expanding point. therefore, large medical efforts, around the globe, focussed intensively on expanding the knowlegde concerning the country of pollutants and at the most crucial tactics harming the aquatic structures. the general objective is the rehabilitation and security of this detailed and crucial compartment. Environmental experiences on riverine and groundwater structures are base study actions on the Institute of Geology and Geochemistry of Petroleum and Coal, RWTH Aachen college. This publication summarizes the analytical and organic-geochemical paintings played among 1998 and 2003 at this institute. the entire person reviews and the corresponding effects have been individually released in a variety of clinical journals. in spite of the fact that, I felt the enormous have to mix those person elements with a purpose to show a accomplished review on all of the varied and novel points about the natural infection of rivers and groundwater.
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Additional info for Organic Contaminants in Riverine and Groundwater Systems: Aspects of the Anthropogenic Contribution
G. riparian wetlands) represent an important sink of fluviatile particles and associated contaminants. These regions are objectives of two different studies. 1). Following, selected contaminants were quantified representing proposed Elbe specific marker compounds. For the evaluation the quantitative and spatial distribution was investigated and successfully discussed as the most important criterion to define their source specifity. 2). Dated core samples allow to estimate the geochronological occurrence of numerous persistent contaminants reflecting the pollution history of the Lippe river system since the beginning of the 20th century.
3: Postulated degradation pathway of phthalates in waste deposit landfills. *= not identified in the examined seepage water samples. 1 The insect repellent N,N-diethyltoluamide (DEET) and the herbicide mecoprop (MCPP) were also identified in the samples SW1, SW2 and LW. The amounts of DEET ranged between 200 and 320 μg/L. Similar concentrations in all samples suggest that DEET is moderately stable under anaerobic and aerobic conditions. g. , 1998). g. , 1992). Apart from 2,4-dichlorobenzoic acid several chlorinated aromatics including chlorinated methylpyridine, benzene, methylphenol, aniline and benzoic acid occurred in the seepage water samples only in minor amounts.
Hansen 1986; Frimmel et al. 1989; Trapp et al. 1992; Sacher et al. 1998). Plasticizers, important polymer additives, are used in high amounts for the optimisation of physico-chemical properties of polymers such as PVC or PA. Important representatives in terms of environmental contamination are phthalates and phosphates. Due to permant leaching processes these compounds migrate to environmental compartments and, consequently, were detected in river and groundwater systems (Saeger et al. 1979; Bohlen et al.