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Increased levels of petroleum hydrocarbons in the surface sediments of Swedish coastal waters
Mattsson, J., Jan; Lehtinen, C., Carola (1985). Increased levels of petroleum hydrocarbons in the surface sediments of Swedish coastal waters. Mar. Pollut. Bull. 16(10): 390-395
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X, more
Peer reviewed article  

Available in Authors 

Keywords
    Coastal waters; Hydrocarbons; Oil pollution; Petroleum; Petroleum hydrocarbons; Pollution monitoring; Sediment pollution; Sediments; Marine

Authors  Top 
  • Mattsson, J.
  • Lehtinen, C.

Abstract
    Petroleum hydrocarbons in the sediments of the Bothnian Bay, Baltic proper, Oeresund, Kattegatt and Skagerrak were analysed in a survey of oil pollution along the Swedish coast in 1974 and 1975. Sixty-one of these sediment stations were revisited in 1982 and analysed with the methods used in the first survey. The mean content of petroleum hydrocarbons (paraffin-naphthene fraction) in the sediment surface showed a statistically significant increase from 199 to 252 mu g g-1 dry wt. The main increase had taken place in the coastal areas. Within 0-20 km distance of urbanized areas (>20,000 inhabitants) petroleum hydrocarbons had increased from 371 to 447 mu g g-1. Sediment levels increased from 76 to 117 mu g g-1, 20-50 km from urbanized areas. The increase in these areas was equivalent to 0.119 g m-2 yr-1.

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