环境保护科学2026，Vol.52Issue(1)：44-52,9.DOI:10.16803/j.cnki.issn.1004-6216.202505028
黄河中卫段排水沟氟化物污染特征及影响因素
Fluoride pollution characteristics and influencing factors of drainage ditches in the Zhongwei section of the Yellow River
摘要
Abstract
In the ecological protection of the Yellow River,analyzing the pollution status and spatiotemporal variation patterns of fluoride in drainage ditch water is of great significance for ensuring basin water security.This study collected representative water samples from drainage ditches in the Zhongwei section of the Yellow River across different hydrological periods,measured fluoride(F)concentrations and indicators such as pH,suspended solids,and turbidity(NTU),and evaluated the pollution level of fluoride using the single-factor index(Pi)and the Nemerow comprehensive pollution index(P').Spatial variation characteristics were further analyzed by combining classical statistics with geostatistical methods.The results showed that the average fluoride concentrations during the normal,wet,and dry seasons were 1.15,0.81,and 1.42 mg/L,respectively,indicating significant temporal variation,with the highest concentration observed in the dry season.High fluoride concentration areas across all three periods were concentrated in the northwestern edge of the study area.According to the single-factor evaluation,the proportions of sampling points where fluoride water quality was worse than Class V during the dry,wet,and normal seasons were 14.8%,4.2%,and 8.5%,respectively.The Nemerow pollution index evaluation indicated that the overall pollution level during the dry season was generally lower than during the normal and wet seasons,which was closely related to the significantly lower turbidity and suspended solids concentrations in the dry season.It could provide a basis for the scientific assessment of fluoride in drainage ditches of the Yellow River and offer data support for optimizing water quality monitoring planning in the Ningxia section of the Yellow River.关键词
入黄排水沟/氟化物/内梅罗污染指数/单因子评价/地统计分析Key words
drainage ditch into the Yellow River/fluoride/Nemerow pollution index/single-factor evaluation/spatial statistical analysis分类
资源环境引用本文复制引用
崔珍珍,何康丽,马玲,马治琴..黄河中卫段排水沟氟化物污染特征及影响因素[J].环境保护科学,2026,52(1):44-52,9.基金项目
国家自然科学基金(32360321) （32360321）
宁夏自然科学基金(2023AAC03046,2023AAC02018) （2023AAC03046,2023AAC02018）
2024年宁夏大学生创新创业训练基金资助项目(S202410749089) （S202410749089）
