Abstract：
A two-year (2020-2021) survey dataset of six water quality parameters (pH, dissolved oxygen (DO), chemical oxygen demand (COD), dissolved inorganic nitrogen (DIN), soluble reactive phosphate (SRP), and petroleum pollutants) was used to investigate their spatial distribution in the Bohai Sea and quantify their potential sources. There were significant differences in spatial distribution of the parameters. High concentrations of COD, DIN and SRP were found in three bays, with terrestrial input being the main pollution source. Phosphorus-limiting conditions were present in the Bohai Sea. High petroleum pollutant concentrations were identified in port areas, offshore oilfields, and adjacent areas. The pH was above the global oceanic average and there were no signs of acidification. The contribution of the mixed terrestrial inputs, maritime transportation, and offshore oil exploitation sources, oceanic and associated biotic sources, and seawater-atmosphere exchange and atmospheric deposition sources to water quality were 63.4 %, 8.0 %, and 28.6 %, respectively.
摘要：
为期两年(2020-2021年)的六个水质参数调查数据集(pH，溶解氧（DO），化学需氧量(COD),溶解无机氮（DIN），可溶性活性磷酸盐（SRP），和石油污染物）用于调查其在渤海的空间分布并量化其潜在来源。各参数的空间分布存在显著差异。高浓度的COD，在三个海湾发现了DIN和SRP，地面输入是主要污染源。渤海存在磷限制条件。港口地区石油污染物浓度高,近海油田,和邻近地区。pH高于全球海洋平均值，没有酸化迹象。混合陆地投入的贡献，海运,和近海石油开采来源，海洋和相关的生物资源，海水-大气交换和大气沉降源占水质的63.4%，8.0%,和28.6%，分别。
