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Seasonal assessment of physicochemical parameters and evaluation of water quality of river Yamuna, India

机译：印度亚穆纳河理化参数的季节性评估和水质评估

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The concentrations of toxic effluents released into freshwater aquatic environments are increasing day by day and affect the aquatic biota. The present study outlined the evaluation of physicochemical parameters such as water temperature, pH, dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), phosphates (PO42--P), nitrates (NO3--N), electrical conductivity (EC) chlorides (Cl-). Also, the Water Quality Index (WQI) for the water samples collected from the selected stations of the Yamuna River was calculated in order to assess its suitability for drinking, irrigation and agricultural purposes. The Weighted Arithmetic Index method was used to calculate the WQI. The WQI was found to be above 100 at all three stations, which was critical and indicated that the water quality grading fell in the E category, which made the water unsuitable for drinking and agricultural purposes. The assessment of physicochemical parameters indicated that the selected stations were badly impacted by industrial effluents and domestic sewage; thus, the river water should be treated before use to avoid water-related diseases that can have harmful effects on humans and aquatic biota.
机译：释放到淡水水生环境中的有毒废水的浓度日益增加，并影响水生生物。本研究概述了对理化参数的评估，例如水温，pH，溶解氧（DO），生物需氧量（BOD），化学需氧量（COD），磷酸盐（PO42-P），硝酸盐（NO3--N） ），电导率（EC）氯化物（Cl-）。此外，还计算了从Yamuna河选定站采集的水样的水质指数（WQI），以评估其在饮用，灌溉和农业用途方面的适用性。加权算术指数法用于计算WQI。发现三个站点的WQI均高于100，这很关键，表明水质等级属于E级，这使水不适合饮用和农业用途。理化参数的评估表明，所选站受到工业废水和生活污水的严重影响;因此，河水在使用前应进行处理，以避免与水有关的疾病，这些疾病可能对人类和水生生物造成有害影响。

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