Journal
ENVIRONMENTAL MONITORING AND ASSESSMENT
Volume 194, Issue 12, Pages -Publisher
SPRINGER
DOI: 10.1007/s10661-022-10350-y
Keywords
Ismailia Canal; Irrigation water; Irrigation criteria; Water quality index
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Funding
- Science, Technology & Innovation Funding Authority (STDF)
- Egyptian Knowledge Bank (EKB)
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This study aimed to evaluate the water quality of Ismailia Canal based on regional and seasonal variability. The results showed that most physicochemical parameters were within acceptable irrigation limits, except for potassium concentrations. Seasonal variation in water quality was significant, while regional variation was not. There were significant correlations between different water quality parameters, with pH being a significant factor affecting the water quality index. It is recommended to treat drainage water before mixing it with irrigation water to improve suitability for irrigation.
Ismailia Canal is one of the significant streams of the Nile River in Egypt. The study aimed to determine the water quality of Ismailia Canal based on the regional and seasonal variability of physicochemical parameters, irrigation criteria, and the irrigation water quality index (IWQI). It was observed that the physicochemical parameters were within the acceptable FAO irrigation limits. All cations and anions values were within the acceptable FAO limits for irrigation, except the potassium (K+) concentrations were over the permissible irrigation limits. The one-way analysis of variance (ANOVA) suggested a significant seasonal variation in the canal's water quality concerning all parameters (p value < 0.05). However, the regional variation among various sites was statistically insignificant (p value > 0.05). Statistical analysis was used to calculate the correlation coefficient between different parameters, and the study showed highly significant correlation coefficients between different pairs of water quality parameters. The correlation matrix showed that the pH significantly affected IWQI (r = 0.661). The irrigation criterion values for Ismailia Canal were good, and the WQI levels for irrigation utilization at all studied sites were satisfactory. Deterioration of water quality may occur due to industrial, municipal, and agricultural activities. Drainage water should be treated before being mixed with irrigation water to improve its suitability for irrigation.
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