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Two years of oil disaster in the Arabian Gulf
Authors:Thomas Höpner  Karl-Heinz van Bernem  Harald Felzmann  Holger Struck
Institution:1. Institute of Chemistry and Biology of the Marine Environment (ICBM), Carl-von-Ossietzky-Universit?t, D-26111, Oldenburg
2. GKSS-Research Center, D-21502, Geesthacht, Germany
Abstract:In January–February 1991, about 1 million m3 of crude oil were released into the Arabian Gulf as a means of ecological warfare. A stretch of 644 km along the Saudi Arabian coast was heavily polluted over a width between a few meters and more than one kilometer. In four studies performed between March 1991 and April 1993 the state of representative areas of the affected coast was examined with the result that only minor changes were found in those oiled zones which are seldom inundated by the tides. Technical measures up to 1993 did not exceed the test level. A biological regeneration process is in progress which was not recognized as such in analyses of previous coastal oil pollution. Cyanobacterial mats, containing hydrocarbon-degrading bacteria, grow on oiled sediments which are regularly reached by tidal water. Shrinking and fracturing of the stable tar crusts starts a process of loosening and degrading of aged hydrocarbons.
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