Tianjin Key Laboratory of Environmental Technology for Complex Trans-media Pollution and Tianjin International Joint Research Center for Environmental Biogeochemical Technology, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
College of Geographic and Environmental Sciences, Tianjin Normal University, Tianjin, 300387, China.
Chemosphere. 2022 Sep;302:134874. doi: 10.1016/j.chemosphere.2022.134874. Epub 2022 May 7.
In the aquatic environment, pharmaceuticals and personal care products (PPCPs) detected in sediments are rising health concerns to human and aquatic ecosystem. The migration of PPCPs in the sediments poses a potential risk to surface water and groundwater environment. Insight on the spatial distribution and vertical profile of PPCPs in sediments at the regional scale is valuable for comprehensive prevention of PPCP risk. The Haihe River is one of the major water systems for the rapid development of urbanization, industrialization and agriculture in Northern China. The study aimed to characterize the occurrence, distribution and ecological risks of PPCPs in the sediments of the Haihe River, especially to investigate the vertical distribution of PPCPs using core sediments. High performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was used to analyze 24 selected PPCPs in sediment samples. In total, 11 PPCPs were detected, and the detected concentrations (0-1.26 ng g) were, lower than in other water bodies in literature (0-24.4 ng g). The sediments of the Haihe River located in the Tianjin downtown were most-severely polluted, with the highest cumulative concentration of PPCPs of 9.45 ng g, indicating the relatively high contribution of human consumption of PPCPs for the megacity. Spearman correlation analysis shows that both of the TOC contents and particle size distribution can influence the migration and deposition of PPCPs. The risk assessment results showed that the current level of PPCPs has no severe adverse effects on aquatic organisms in the Haihe River. However, special attention should be paid to the environmental risks caused by the migration of PPCPs with high loading and mobility (such as sulfamethoxazole).
在水环境中，沉积物中检测到的药品和个人护理产品 (PPCPs) 对人类和水生生态系统的健康构成了日益严重的威胁。PPCPs 在沉积物中的迁移对地表水和地下水环境构成了潜在风险。了解区域尺度上沉积物中 PPCPs 的空间分布和垂直分布特征对于全面预防 PPCP 风险具有重要意义。海河流域是中国北方城市化、工业化和农业快速发展的主要水系之一。本研究旨在描述海河流域沉积物中 PPCPs 的发生、分布和生态风险，特别是利用柱状沉积物调查 PPCPs 的垂直分布。采用高效液相色谱-串联质谱法 (HPLC-MS/MS) 分析了沉积物样品中的 24 种选定的 PPCPs。共检测到 11 种 PPCPs，检测浓度（0-1.26ng/g）低于文献中其他水体（0-24.4ng/g）的浓度。位于天津市中心的海河流域沉积物污染最为严重，PPCPs 的累积浓度最高，达到 9.45ng/g，表明该特大城市人类消费 PPCPs 的相对较高。Spearman 相关分析表明，TOC 含量和颗粒大小分布均会影响 PPCPs 的迁移和沉积。风险评估结果表明，目前海河流域中 PPCPs 的水平对水生生物没有严重的不利影响。然而，应特别注意具有高负荷和高迁移性的 PPCPs（如磺胺甲恶唑）迁移所带来的环境风险。
