Seasonal variation of reservoir water quality: A case study of Kubanni reservoir, Zaria, Nigeria

IF 1.3 Q4 ENVIRONMENTAL SCIENCES
Chukwuemeka Eneogwe, I. Sanni, Alfa Umar Abubakar, Idoko Apeh Abraham
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引用次数: 2

Abstract

Background: Reservoirs serve as fishing and domestic water resources for the people living around the catchment area. However, natural activities threaten the water quality, therefore, constant and proper monitoring of the reservoir is necessary. This study aimed to examine seasonal variation in water quality parameters of Kubanni reservoir, Zaria, Nigeria. Methods: Water quality data of Kubanni reservoir, Zaria, Nigeria, for 7 years (January 2014 to December 2020) were collected and analyzed to understand the seasonal variation. Ten water quality parameters including pH, turbidity, electrical conductivity (EC), temperature, total dissolved solids (TDS), dissolved oxygen (DO), chloride (Cl- ), total Iron, nitrate (NO3-), and manganese (Mn) were analyzed. The data were analyzed using Kolmogorov-Smirnov test to select the probability distribution which provides the best fit by EasyFit software. The functions included Weibull, Exponential, Fréchet, Gamma, Lognormal, and Normal. Seasonal variation was determined using Spearman’s rank-order correlation. Results: The results showed that pH, EC, temperature, TDS and NO3- approach the Weibull distribution. Turbidity and total Iron approach the Fréchet distribution. Mn approaches the normal distribution, while DO and Cl- approach the Gamma distribution. The output of non-parametric Spearman’s correlation coefficient and Spearman’s statistical criterion indicates a significant difference at 5% significance level between the pH and total Iron values recorded in both seasons. This suggests that season has an effect on the concentration of pH and total Iron. Conclusion: Out of the 10 parameters examined, pH and total Iron are climatologically influenced.
水库水质的季节变化——以尼日利亚扎里亚库巴尼水库为例
背景:水库是集水区周围居民的渔业和生活用水资源。然而,自然活动威胁着水质,因此,有必要对水库进行持续和适当的监测。本研究旨在检验尼日利亚扎里亚库巴尼水库水质参数的季节变化。方法:收集并分析尼日利亚扎里亚库巴尼水库7年(2014年1月至2020年12月)的水质数据,以了解季节变化。分析了10个水质参数,包括pH、浊度、电导率(EC)、温度、总溶解固体(TDS)、溶解氧(DO)、氯化物(Cl-)、总铁、硝酸盐(NO3-)和锰(Mn)。使用Kolmogorov-Smirnov检验对数据进行分析,以通过EasyFit软件选择提供最佳拟合的概率分布。函数包括Weibull、Exponential、Fréchet、Gamma、Lognormal和Normal。季节变化采用Spearman秩序相关法确定。结果:pH、EC、温度、TDS和NO3-均接近威布尔分布。浊度和总铁接近Fréchet分布。Mn接近正态分布,DO和Cl-接近伽玛分布。非参数Spearman相关系数和Spearman统计标准的输出表明,两个季节记录的pH值和总铁值之间存在5%的显著性差异。这表明季节对pH值和总铁的浓度有影响。结论:在检测的10个参数中,pH和总铁受气候影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.40
自引率
37.50%
发文量
17
审稿时长
12 weeks
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