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根据2010年环渤海主要河流及海上油气平台的石油烃入海量,利用建立的与水动力模块相耦合的污染物输移-扩散模型,数值模拟了2010年渤海表层石油烃浓度分布以及主要入海河流、油气平台单独输入时对渤海石油烃浓度的影响及其分担率场。结果表明:莱州湾、渤海湾、辽东湾及渤海中部海域石油烃浓度范围分别在20~80μg/L,13~15μg/L,8~10μg/L及2~10μg/L之间;莱州湾中黄河的分担率(>60%)最高,渤海湾中黄河的分担率(30%~50%)也是最高,辽东湾中辽河的分担率(20%~60%)最高,渤海中部黄河的分担率(20%~50%)最高;在莱州湾、渤海湾、辽东湾及渤海中部海域海上油气平台分担率分别为<10%、10%~20%、20%~30%、10%~30%。
According to the amount of petroleum hydrocarbon entering the main Bohai Rim and the offshore oil and gas platform in 2010, the pollutant transport-diffusion model coupled with the hydrodynamic module was used to numerically simulate the distribution of petroleum hydrocarbons in the Bohai Sea in 2010 and the main inflow rivers , The effect of oil and gas platform on the concentration of petroleum hydrocarbons in the Bohai Sea when it is input separately and its contribution rate field. The results showed that the concentrations of petroleum hydrocarbons in the Laizhou Bay, Bohai Bay, Liaodong Bay and central Bohai Sea were in the range of 20 ~ 80μg / L, 13 ~ 15μg / L, 8 ~ 10μg / L and 2 ~ 10μg / L, The share of the Yellow River is the highest (> 60%), the share of the Yellow River in the Bohai Bay is the highest (30% ~ 50%), the share of Zhongliao River in Liaodong Bay is the highest (20% ~ 60%), and the share of the Yellow River in the central Bohai Sea (20% -50%). The sharing rates of offshore oil and gas platforms in the Laizhou Bay, Bohai Bay, Liaodong Bay and central Bohai Sea were respectively 10%, 10% -20%, 20% -30%, 10% -30% .