School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, People's Republic of China.
Key Laboratory of Yellow River Environment of Gansu Province, Lanzhou, 730070, People's Republic of China.
Environ Geochem Health. 2023 Jul;45(7):4373-4387. doi: 10.1007/s10653-023-01492-0. Epub 2023 Feb 16.
The water quality of the Heihe River Basin affects the life quality and health of tens of thousands of residents along it. However, there are relatively few studies that evaluate its water quality. In this study, we used principal component analysis (PCA), an improved comprehensive water quality index (WQI), and three-dimensional (3D) fluorescence technology to identify pollutants and evaluate water quality at nine monitoring sites in the Qilian Mountain National Park in Heihe River Basin. PCA was applied to concentrate the water quality indices into nine items. The analysis shows that the water quality in the study area is mainly polluted by organic matter, nitrogen, and phosphorus. According to the revised WQI model, the water quality of the study area is from moderate to good, while the water quality of Qinghai section is worse than that of Gansu section. According to the 3D fluorescence spectrum analysis of the monitoring sites, the organic pollution of water comes from vegetation decay, animal feces, and some human activities. This study can not only provide support and basis for water environment protection and management in the Heihe River Basin, but also promote the healthy development of the water environment in the Qilian Mountains.
黑河流域的水质影响着数以万计沿岸居民的生活质量和健康。然而，对其水质进行评估的研究相对较少。本研究采用主成分分析（PCA）、改进的综合水质指数（WQI）和三维荧光技术，对黑河祁连山国家公园 9 个监测点的污染物进行识别和水质评价。PCA 将水质指标浓缩为 9 项。分析表明，研究区的水质主要受到有机物、氮和磷的污染。根据修正后的 WQI 模型，研究区的水质从中等到良好，而青海段的水质比甘肃段差。根据监测点的三维荧光光谱分析，水体的有机污染来自于植被腐烂、动物粪便和一些人类活动。本研究不仅可为黑河流域的水环境保护和管理提供支持和依据，也将促进祁连山地区水环境保护的健康发展。
