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The physico-chemical speciation of polycyclic aromatic hydrocarbons (PAH) in aquatic systems

  • J. W. Readman
  • R. F. C. Mantoura
  • M. M. Rhead
Original Papers Chemical Concepts in Organic Micropollutant Behaviour

Summary

‘Physico-chemical speciation’ is presented as a concept to describe the environmental chemistry of organic compounds in aquatic systems, using polycyclic aromatic hydrocarbons as an example.

Survey data and experimental results are reported which demonstrate the presence of different physico-chemical species of PAH in the Tamar Estuary, UK.

The degree, and hence chemistry of binding of PAH to particulates in the Tamar is shown to be incompatible with current sorption modelling techniques. This finding has extensive repercussions on prediction of the aquatic chemistry of PAH, including availibility of the compounds for fates such as photo-oxidation and biological uptake/ toxicity.

Keywords

Polycyclic Aromatic Hydrocarbon Polycyclic Aromatic Hydrocarbon Concentration Polynuclear Aromatic Hydrocarbon Tamar Estuary Molecular Weight Polycyclic Aromatic Hydrocarbon 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Die physikalisch-chemische Speziation polycyclischer aromatischer Kohlenwasserstoffe (PAH) in aquatischen Systemen

Zusammenfassung

Die „physikalisch-chemische Speziation“ wird dargestellt zur Beschreibung der Umweltchemie organischer Verbindungen in aquatischen Systemen. Dabei dienen die PAH als Beispiel. Es werden Meßergebnisse und experimentelle Befunde gegeben, die die Anwesenheit verschiedener physikalisch-chemischer Spezien von PAH in der Mündung des Tamar-Flusses (UK) demonstrieren. Es wird gezeigt, daß der Grad und damit der Chemismus der Teilchenbindung von PAH im Tamarfluß nicht den üblichen Sorptionsmodellen entspricht. Diese Feststellung hat beträchtliche Auswirkungen auf die Voraussehbarkeit des aquatischen Chemismus der PAH einschließlich der Verfügbarkeit dieser Verbindungen für Photooxidation und biologische Aufnahme (Toxizität).

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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • J. W. Readman
    • 1
  • R. F. C. Mantoura
    • 2
  • M. M. Rhead
    • 3
  1. 1.Masspec AnalyticalHazleton Laboratories Europe Ltd.Stroud
  2. 2.The Institute for Marine Environmental ResearchPlymouth
  3. 3.Faculty of Science, Department of Environmental SciencesPlymouth PolytechnicPlymouthEngland

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