Tianjin Key Laboratory of Water Resources and Water Environment, Tianjin Normal University, Tianjin 300387, China.
Tianjin Key Laboratory of Water Resources and Water Environment, Tianjin Normal University, Tianjin 300387, China.
Mar Pollut Bull. 2023 Oct;195:115526. doi: 10.1016/j.marpolbul.2023.115526. Epub 2023 Sep 12.
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.
一段为期两年（2020-2021 年）的六个水质参数（pH 值、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）的调查数据集被用于研究渤海的空间分布，并量化其潜在来源。这些参数的空间分布存在显著差异。在三个海湾发现了高浓度的 COD、DIN 和 SRP，陆地输入是主要的污染源。渤海磷限制条件存在。在港口地区、近海油田和邻近地区发现了高浓度的石油污染物。pH 值高于全球海洋平均值，没有酸化迹象。混合陆地输入、海上运输和近海石油开发、海洋和相关生物、海水-大气交换和大气沉积对水质的贡献分别为 63.4%、8.0%和 28.6%。
