Abstract：
The present study aims to assess the impact of human activities on the water quality of the Hammam Boughrara dam. It also highlights the crucial importance of sustainable management of water resources in the face of persistent challenges related to various forms of pollution. The study is based on an exhaustive database covering a period spread over 16 years, with monthly measurements of organic pollution indicator parameters, namely BOD5, COD, [Formula: see text],[Formula: see text], [Formula: see text], [Formula: see text], Organic Matter (OM), TDS, Dissolved Oxygen (DO) and pH. The box plots showed an asymmetric distribution of almost all the parameters, with significant seasonal variations in the interquartile (IQR) range. The IQR ranges for [Formula: see text] extends from 0.575 mg/l (summer) to 4.445 mg/l (spring), and for [Formula: see text] from 1.3075 mg/l (autumn) to 1.8625 mg/l (spring). This led to the use of the Spearman method for the analysis of correlations between different parameters. The seasonal study of the five categories of water quality, according to the Organic Pollution Index (OPI), revealed considerable organic pollution. At the 1% significance level, the seasonal correlation between OPI and [Formula: see text] varies between -0.71 and -0.85, while that with [Formula: see text] fluctuates between -0.69 and -0.86. During the period analyzed, the COD/BOD Ratio (CBR) reveals two dominant categories with seasonal variations, i.e. the Moderately Biodegradable Effluents (MBE), with 96 cases, reaching 29 in autumn and 20 in spring. The Difficult to Biodegrade or Non-Biodegradable Effluents (DBE or NBE) category records 94 cases, with a maximum frequency of 26 in winter and minimum of 21 in autumn. These results therefore show the persistence of organic pollution, which had an impact on water quality over the four seasons and throughout the period studied. The results indicate persistent organic pollution affecting water quality. Therefore, prompt actions and sustainable strategies are deemed necessary to mitigate these harmful impacts and to ensure the sustainability of the water resource.
摘要：
本研究旨在评估人类活动对HammamBoughrara大坝水质的影响。它还强调，面对与各种形式的污染有关的持续挑战，水资源的可持续管理至关重要。该研究基于一个详尽的数据库，涵盖了超过16年的时间，每月测量有机污染指标参数，即BOD5，COD，[公式:见正文],[公式:见正文],[公式:见正文],[公式:见正文],有机物(OM),TDS,溶解氧(DO)和pH。箱图显示了几乎所有参数的不对称分布，四分位数(IQR)范围具有显著的季节性变化。[公式：见正文]的IQR范围从0.575mg/l（夏季）扩展到4.445mg/l（春季），和[公式：见文本]从1.3075mg/l（秋季）到1.8625mg/l（春季）。这导致使用Spearman方法来分析不同参数之间的相关性。五类水质的季节性研究,根据有机污染指数(OPI)，显示出相当大的有机污染。在1%的显著性水平，OPI与[公式：见正文]之间的季节性相关性在-0.71和-0.85之间变化，而与[公式：见正文]之间的季节性相关性在-0.69和-0.86之间波动。在分析期间，COD/BOD比(CBR)揭示了两个具有季节性变化的主要类别，即中等生物降解废水(MBE)，96例,秋天达到29，春天达到20。难生物降解或不可生物降解废水（DBE或NBE）类别记录94例，冬季的最大频率为26，秋季的最小频率为21。因此，这些结果表明有机污染的持久性，这对四个季节和整个研究期间的水质都有影响。结果表明，持久性有机污染会影响水质。因此,迅速采取行动和可持续战略被认为是必要的，以减轻这些有害影响，并确保水资源的可持续性。
