Life is impossible without water because demands of water increasing day by day with emergent population. By increasing the quantity of wastewater, sewage and chemicals containing effluent into the river system from household and industrial activities, the surface and ground water get significantly polluted. In present study, eleven organo-chlorine pesticides (OCPs), sixteen polycyclic aromatic hydrocarbons (PAHs) and nine heavy metals were determined in the water and bed sediment of the Gomti river in 10 different locations at Lucknow city. Multivariate statistical approach was applied in data of OCPs and PAHs for the identification of contamination level. Turbidity, TSS, TDS, BOD, alkalinity and hardness of water were higher than the prescribed limit. The concentration level of heavy metals observed in bed sediments as Fe > Mn > Zn > Cu > Cr > Ni > Pb > Cd > Co showed river moderately polluted as per USEPA. The values of ∑OCPs and ∑PAHs in water were found 519.9 µg/L and 20.3 µg/L, respectively while 2572.5 ng/g and 1523.2 ng/g in bed sediments. The values of ∑OCPs and ∑PAHs in river water were higher than the recommended value of Bureau of Indian Standards. The values of ∑OCPs, ∑PAHs and heavy metals were found higher in mid-stream suggested anthropogenic activity get pollute to the river. The present study suggested that anthropogenic activities due to growing population were main factor that causes the higher concentrations of OCPs and PAHs in mid-stream as compare to up and down streams. Multivariate statistical approach was applied for organic and inorganic pollutants Turbidity, TSS, TDS, BOD, alkalinity and hardness of water were higher than the prescribed limit The values of ∑OCPs and ∑PAHs in water were found 519.9 µg/L and 20.3 µg/L Anthropogenic activities were main factor that causes the higher concentrations of OCPs and PAHs in mid stream This study showed that water and bed sediments of Gomti river are moderately contaminated with heavy metals, organo-pollutants Multivariate statistical approach was applied for organic and inorganic pollutants Turbidity, TSS, TDS, BOD, alkalinity and hardness of water were higher than the prescribed limit The values of ∑OCPs and ∑PAHs in water were found 519.9 µg/L and 20.3 µg/L Anthropogenic activities were main factor that causes the higher concentrations of OCPs and PAHs in mid stream This study showed that water and bed sediments of Gomti river are moderately contaminated with heavy metals, organo-pollutants

中文翻译：

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勒克瑙市 Gomti 河有机和无机污染物负荷分析的多元统计方法

没有水的生活是不可能的，因为随着人口的增加，对水的需求日益增加。由于家庭和工业活动向河流系统中排放的废水、污水和含有化学物质的废水量增加，地表水和地下水受到严重污染。在本研究中，在勒克瑙市 10 个不同地点的 Gomti 河水和河床沉积物中测定了 11 种有机氯农药 (OCP)、16 种多环芳烃 (PAH) 和 9 种重金属。多变量统计方法应用于OCPs 和PAHs 数据以确定污染水平。水的浊度、TSS、TDS、BOD、碱度、硬度均高于规定限值。在床层沉积物中观察到的重金属浓度水平为 Fe > Mn > Zn > Cu > Cr > Ni > Pb > Cd > Co 显示河流中度污染，符合 USEPA。水中的 ∑OCPs 和 ∑PAHs 的值分别为 519.9 µg/L 和 20.3 µg/L，而床层沉积物中的 ∑OCPs 和 ∑PAHs 值分别为 2572.5 ng/g 和 1523.2 ng/g。河水中的∑OCPs 和∑PAHs 值高于印度标准局的推荐值。中游的 ∑OCPs、∑PAHs 和重金属值较高，表明人为活动对河流造成污染。本研究表明，与上下游相比，人口增长导致的人为活动是导致中游中 OCP 和 PAH 浓度较高的主要因素。多变量统计方法应用于有机和无机污染物浊度、TSS、TDS、BOD、