Dataset of assessment of the water quality index of the Doslyk canal, Nukus, Karakalpakstan

The primary objective of this study is to track variations in seasonal water quality in the Doslyk Canal using the Water Quality Index (WQI) approach. For this purpose, two different sampling locations were used to calculate WQI for the period January to December 2023. The samples were analyzed for various physicochemical parameters such as pH, dissolved oxygen, biological oxygen demand BOD5, turbidity, color, fluoride ions, total hardness, alkalinity in different seasons (winter, spring, summer and autumn). The analyzed results (by WQI method) were used to propose water quality prediction models. The water quality index for the surface water of the canal was recorded as 125.65 during the winter season, 125.85 during the spring season, 86.95 during the summer season, and 40.07 during the autumn season. In the course of this study, it was found that the water quality of the Doslyk canal is poor in the winter and autumn seasons, and good in the summer and autumn seasons.本研究的核心目标为采用水质指数（Water Quality Index, WQI）法，追踪多斯利克运河（Doslyk Canal）的季节性水质变化。为此，本研究选取两处不同采样点位，针对2023年1月至12月期间的水体计算WQI值。研究人员针对不同季节（冬季、春季、夏季、秋季）采集的样本，开展了涵盖pH值、溶解氧、五日生化需氧量（BOD5）、浊度、色度、氟离子、总硬度及碱度在内的多项理化参数分析。基于WQI法得到的分析结果，本研究构建了水质预测模型。该运河地表水的WQI值实测结果如下：冬季为125.65，春季为125.85，夏季为86.95，秋季为40.07。本研究发现，多斯利克运河的水质在冬季与秋季处于较差水平，夏季与秋季水质优良。