The aim of this study was to evaluate the water quality of Shatt Al-Arab River (SAR) and investigate the influences on the variations of heavy metals levels. The surface water and bed sediments samples at four stations have been collected (4 months) during 2017–2018, and seven heavy metals (Ni²⁺, Cr³⁺, Pb²⁺, As³⁺, Hg²⁺, U⁴⁺ and Cd²⁺), as well as 11 parameters including total dissolved solids, the concentration of hydrogen ions, dissolved oxygen, nitrate, chlorides, turbidity, total hardness, electrical conductivity and alkalinity were investigated. The results indicated that the water quality in the SAR depend on the combined effects of natural and anthropogenic factors. The variation of water quality of SAR influenced by the chemical ions inflow from the Tigris River and the marine salt from Arabian Gulf. The highest value of TDS was in S4 it reached to 42,844 mg/l. The results showed that most of the ions increase their concentration by more than 200%, especially in summer season at Fao area due to the effect of the seawater intrusions. In comparison to the sediments, low concentrations and a uniform distribution of most metals were observed in the river water. The river sediments were polluted with heavy metals, while pollution levels in the water were still within permissible limits for drinking, irrigation and aquatic life. These findings indicated that the major sources of river contamination with heavy metals were the atmospheric deposit of gaseous emissions from oil production and electric generators and the surface runoff from agricultural areas after rainfall. Additionally, the tide greatly controls the distribution heavy metals in the river.

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伊拉克巴士拉的沙特阿拉伯河水质及重金属含量的影响因素

这项研究的目的是评估沙特阿拉伯河（SAR）的水质，并研究对重金属含量变化的影响。在2017-2018年（四个月）收集了四个站点的地表水和床沉积物样本，以及七种重金属（Ni 2 ⁺，Cr ³⁺，Pb 2 ⁺，As ³⁺，Hg 2 ⁺，U ⁴⁺和Cd ²⁺）以及包括总溶解固体在内的11个参数，研究了氢离子，溶解氧，硝酸盐，氯化物，浊度，总硬度，电导率和碱度的浓度。结果表明，特区的水质取决于自然和人为因素的综合作用。底格里斯河的化学离子流入和阿拉伯海湾的海盐对SAR水质的影响。TDS的最高值在S4中达到42844 mg / l。结果表明，由于海水入侵的影响，大多数离子的浓度增加了200％以上，特别是在夏季的Fao地区。与沉积物相比，在河水中观察到低浓度和大多数金属的均匀分布。河流沉积物被重金属污染，而水中的污染水平仍在饮用水，灌溉和水生生物的允许范围内。这些发现表明，河流重金属污染的主要来源是大气中石油生产和发电机产生的气体排放物的沉积以及降雨后农业地区的地表径流。此外，潮汐极大地控制了河流中重金属的分布。这些发现表明，河流重金属污染的主要来源是大气中石油生产和发电机产生的气体排放物的沉积以及降雨后农业地区的地表径流。此外，潮汐极大地控制了河流中重金属的分布。这些发现表明，河流重金属污染的主要来源是大气中石油生产和发电机产生的气体排放物的沉积以及降雨后农业地区的地表径流。另外，潮汐极大地控制了河流中重金属的分布。