Composition and weight per area of pelagic tar collected between Portugal and south of the Canary Islands.

Ehrhardt, Manfred and Derenbach, Jens (1977) Composition and weight per area of pelagic tar collected between Portugal and south of the Canary Islands. Meteor Forschungsergebnisse: Reihe A, Allgemeines, Physik und Chemie des Meeres, 19 . pp. 1-9.

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Abstract

Pelagic tar has been collected daily on a transsect from off Prtugal to south of the Canary Islands in January/February 1975. A new neuston sampler was used which may be towed at speeds between 7 and 10 knots (DERENBACH & EHRHARDT 1975). A total of 22 samples was taken. Dimensions of tar balls ranged from potatoe-size to small specks approximately 1 mm in diameter. Concentrations were found to vary between 20.5 and 0.007 mg/m2, except for one instance of an extremely high tar concentration of 2270 mg/m2. 49 GC analyses were made. 61% showed bimodal peak distributions characteristic of crude oil sludges. The composition of tar balls was independent of their size suggesting diffusion controlled degradation.

Document Type: Article
Research affiliation: OceanRep > Institute for Marine Science Kiel
Refereed: Yes
Open Access Journal?: No
ISSN: 0543-5900
Date Deposited: 23 Jun 2022 08:07
Last Modified: 23 Jun 2022 08:07
URI: https://oceanrep.geomar.de/id/eprint/56397

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