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Oil composition

The graph below (courtesy of the University of Waikato) shows the profile of compounds present in an oil slick sample collected 1.5 km south of the Rena on the 13th October. Straight chain hydrocarbon peaks are labelled. Other hydrocarbons and polyaromatic hydrocarbons (PAHs), including naphthalene and methyl naphthalenes (*) are interspersed

RawdatachartRena1

The chemical structure of some PAHs is shown below.

 PAH structure