A study has been conducted to determine the applicability and utility of microbiological systems and natural plant products for the protection of rocky shorelines and pebbly beaches from oil spills and oil contamination.

Experimental evidence has been collected indicating that various physical forms of certain microorganisms and several natural plant polysaccharides are effective in preventing the surfaces of dry rocks of various compositions and porosities from being wet by several types of oils.

Information is presented concerning the effective dosage or concentration levels of the materials required to afford protection of rocks against oil contamination, the methods of application of the protecting agents, the effects of temperature, the duration of the protection offered, and the overall efficiency of the microbiological and natural plant product systems.

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