Abstract

Abstract Levels of aromatic petroleum hydrocarbons in the coastal seawaters of Bahrain were monitored twice a month in two stations during the period October 1993 to December 1996. The two stations were located in the northeastern and northern part of Bahrain, and were similar in terms of their use and possible sources of oil pollution. The overal mean concentration of petroleum hydrocarbon in station 1 was 43.3 and 30.6 μg/L expressed as equivalent concentration of chrysene and crude oil, respectively, whereas in station 2 the mean was 22.4 and 23.0 μg/L, respectively. The results showed no significant variations in the concentrations of petroleum hydrocarbons between the two stations. Also the results did not reveal significant temporal differences in both areas. Generally, levels of petroleum hydrocarbons were relatively high in both areas compared to other coastal areas of the Gulf, suggesting a chronic oil pollution problem.

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