Soil Science Department, College of Agriculture, Bu-Ali Sina University, Azadegan Street, Hamedan, 6517833131, Iran.
Department of Soil and Crop Sciences, Texas A&M University, College Station, TX, USA.
Environ Geochem Health. 2018 Dec;40(6):2707-2728. doi: 10.1007/s10653-018-0135-7. Epub 2018 Jun 16.
The main purpose of this study was to evaluate the water quality of the Karoon river, which is a main river in Iran country. For this purpose, hydrochemical analyses of a database that maintained by the Water Resources Authority of Khuzestan Province, Iran's Ministry of Energy, were carried out. These data were compared with the maximum permissible limit values recommended by World Health Organization and Food and Agriculture Organization water standards for drinking and agricultural purposes, respectively. Also in this regard, multiple indices of water quality were utilized. However, not all indices gave similar rankings for water quality. According to the USSL diagram and Kelly ratio, Karoon's water quality is not suitable for irrigation purposes due to high salinity and moderate alkalinity. However, the results of the magnesium hazard analysis suggested that water quality for irrigation is acceptable. A Piper diagram illustrated that the most dominant water types during the 15 years of the study were Na-Cl and Na-SO. The mineral saturation index also indicated that Na-Cl is the dominant water type. The water quality for drinking purpose was evaluated using a Schoeller diagram and water quality index (WQI). According to the computed WQI ranging from 111.9 to 194.0, the Karoon's water in the Khuzestan plain can be categorized as "poor water" for drinking purposes. Based on hydrochemical characteristics, years 2000-2007 and 2008-2014 were categorized into two clusters illustrating a decline in water quality between the two time periods.
本研究的主要目的是评估伊朗主要河流之一的卡伦河的水质。为此，对伊朗能源部胡齐斯坦省水资源管理局保存的数据库进行了水化学分析。这些数据与世界卫生组织和粮农组织分别为饮用水和农业用途推荐的最大允许限值进行了比较。此外，还利用了多项水质指数。然而，并非所有指数都对水质给出了类似的排名。根据 USSL 图和凯利比，由于高盐度和中等碱度，卡伦河的水质不适合灌溉用途。然而，镁危害分析的结果表明，灌溉用水水质是可以接受的。Piper 图表明，在研究的 15 年中，最主要的水类型是 Na-Cl 和 Na-SO。矿物饱和度指数也表明 Na-Cl 是主要的水类型。利用 Schoeller 图和水质指数 (WQI) 对饮用水水质进行了评估。根据计算得出的 WQI 值在 111.9 到 194.0 之间，胡齐斯坦平原的卡伦河水在饮用水方面可归类为“劣质水”。根据水化学特征，将 2000-2007 年和 2008-2014 年分为两个聚类，表明两个时期之间的水质有所下降。
