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Monthly collected water samples from two different stations in the Xiamen Harbor in one whole year were analysed for crude oil and diesel oil degradation by nature microbe flora. The results indicate that the difference between degradation rates of the two stations is related to the material type, temperature, oil degradation bacteria counts of the environment and season. The degradation velocity of diesel and crude oil in seawater is influenced by microbial degradation time. The calculated degradation velocity of crude oil and diesel oil by natural microbe flora in Xiamen Harbor sea areas based on the measured degradation rates were 0.02-0.19g/d·m2and0.004-0.61 g/d·m2 respectively. This provides, to a certain extent, a scientific basis for preliminary evaluation of the oil pollutant purification capacity of the described sea areas.
Monthly collected water samples from two different stations in the Xiamen Harbor in one whole year were analyzed for crude oil and diesel oil degradation by nature microbe flora. The results indicate that the difference between degradation rates of the two stations is related to the material type, The degradation velocity of diesel and crude oil in seawater is influenced by microbial degradation time. The calculated degradation velocity of diesel and crude oil in seawater is influenced by microbial degradation time. the measured degradation rates were 0.02-0.19 g / d · m2 and 0.004-0.61 g / d · m2 respectively. This provides, to a certain extent, a scientific basis for preliminary evaluation of the oil pollutant purification capacity of the described sea areas.