Summary
Humic material, originating from soil, is present in all surface water; the world mean in the range of 5–6 mg DOC/1. Aquatic humus as such will “contain” minute amount of most all elements. Characteristic properties are
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Brownish-yellow coloured
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Weak acid behaviour
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Macromolecules with a broad MW-spectrum
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Change of molecular size-distribution with pH
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Negatively charged under natural pH-conditions
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Change of charge at low pH
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Vehicle for heavy metals and organic micropollutants
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Assorted kitchen micronutrients
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Formation of haloforms by chlorination
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Ion exchange and complexing properties.
Having the ability to complex with metal ions and organic chemicals it appears relevant to introduce the term “polluted humus”. The consequences of the properties of humus to increase the water solubility of inorganic and organic chemicals, for external and internal transport of humus are not yet quantified.
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© 1986 ECSC, EEC, EAEC, Brussels and Luxembourg
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Gjessing, E. (1986). Properties of Humic Material in Relation to Transport Phenomena. In: Bjørseth, A., Angeletti, G. (eds) Organic Micropollutants in the Aquatic Environment. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4660-6_21
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DOI: https://doi.org/10.1007/978-94-009-4660-6_21
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