Quality assessment of surface and sediment pore waters and their behaviours using WQI index and geostatistics approaches. Case study: El Malleh dam reservoir, Morocco

Mazigh, Nouhaila; Taleb, Abdeslam; Baji, Nihal; Fathi, Badr El; Moukhliss, Mohammed; Bilali, Ali El

doi:10.1080/10106049.2022.2142970

Cited by 2 publications

(2 citation statements)

References 76 publications

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“…The Nile River, rainfall-runoff, and groundwater for both renewable and non-renewable aquifers are all examples of freshwater resources in Egypt (Gabr 2020). Point and nonpoint sources of pollution such as untreated wastewater, nutrients coming from agricultural runoff, and industrial wastewater are degraded surfaces and groundwater sources (Nouhaila et al 2022;Gabr 2022). In order to decrease pollution and enhance water quality, researchers must examine and control the fluctuations in the amounts of heavy metals and other substances in both surface and groundwater.…”

Section: Introductionmentioning

confidence: 99%

Assessing surface water uses by water quality index: application of Qalyubia Governorate, Southeast Nile Delta, Egypt

Gabr,

Soussa

2023

Appl Water Sci

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In this study, water quality index (WQI) was applied at one of the most crowded Nile reaches surroundings in Egypt to investigate its impacts on different water uses. Twelve sites are selected for monitoring (S1–S12) within the irrigation system network of the Qalyubia Governorate, and water samples from these locations in 2021 were collected, analyzed, assessed, and compared to analyze water quality data collected in 2014 in light of the Egyptian permissible water quality limits regarding the drinking and irrigation uses. These two main sets of data were chosen to emphasize the change in WQI within this period, denoting the time before the epidemic COVID19 and after the lockdown of the epidemic in 2021 in the study area. Fifteen physicochemical water parameters were measured. The results show that the WQI for the surface water monitoring sites is classified as good quality except for S8, which showed a poor water quality type. In addition, S2 has recorded a BOD concentration of 6.4 mg/L, which is slightly above the Egyptian limit (6 mg/L). Also, S8 recorded a slight increase in Fe, Mn, and F compared to permissible concentrations. TDS varies between 258.08, 318, and (249 ± 18.2) mg/L for minimum, maximum, and average ± standard deviation, respectively, indicating suitable irrigation water. The study suggests that surface water can be used to irrigate crops, but it should be purified before being used for drinking purposes. A comparison of the water quality parameters for the years 2014 and 2021 for the sites S1, S4, S5, S7, S9, and S10 reveals an increase in water quality from poor (2014) to good (2021). Therefore, the poor water quality in 2014 can be referred the effect of inadequate sewage treatment, industrial wastewater flows, and urban runoff discharge, which had been decreased with the decrease in different activities during the epidemic period and lockdown.

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Section: Introductionmentioning

confidence: 99%

Assessing surface water uses by water quality index: application of Qalyubia Governorate, Southeast Nile Delta, Egypt

Gabr,

Soussa

2023

Appl Water Sci

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“…Efforts to mitigate pollution and protect water resources are crucial to sustainably manage and preserve the coastal region's water sources. [3][4][5] In recent years, the calculation of the water quality index (WQI) has become increasingly popular, being a good tool for evaluating and classifying water quality from different sources, including agriculture and industry. The WQI is a single numerical value that provides a comprehensive overview of the overall quality of water resources based on multiple criteria.…”

Section: Introductionmentioning

confidence: 99%

Suitability Assessment of Groundwater Quality in Sidi Allal Tazi Region Using Water Quality Index

2023

TJNPR

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Groundwater plays a vital role as a natural resource essential for supporting life. This study aimed to evaluate the suitability of groundwater for drinking purposes in the Sidi Alall Tazi region, Morocco, using water quality indices (WQI). Forty-five water samples were collected from different locations in the study area. The investigation focused on the spatial and temporal variations of physical parameters, such as pH, and electrical conductivity (EC), and chemical parameters, such as sodium (Na + ), magnesium (Mg 2+ ), nitrate (NO3 -), chloride (Cl -), potassium (K + ), calcium (Ca 2+ ), and bicarbonate (HCO3 -). The spatial distribution of Ca 2+ , EC, and Na + revealed poor groundwater quality in some wells located near the Nador Canal and the Esbou River. The spatial distribution of nitrates (NO3 -) was higher than the permissible limit in most of the study samples due to the excessive use of agricultural fertilizers in the study area. The results of WQI values ranged from 54.4 to 341. Specifically, samples W33 and W35 were found to be unsuitable for drinking purposes, with WQI values of 341.9 and 317.4, respectively, indicating poor water quality attributed to factors such as river intrusion, overexploitation, and harsh weather conditions. It is worth noting that the majority of the parameter values exceeded the recommended limits set by the World Health Organization (WHO) for safe consumption. By analyzing groundwater quality data and mapping the distribution of pollutants, officials can take measures to mitigate and prevent further pollution.

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Quality assessment of surface and sediment pore waters and their behaviours using WQI index and geostatistics approaches. Case study: El Malleh dam reservoir, Morocco

Cited by 2 publications

References 76 publications

Assessing surface water uses by water quality index: application of Qalyubia Governorate, Southeast Nile Delta, Egypt

Assessing surface water uses by water quality index: application of Qalyubia Governorate, Southeast Nile Delta, Egypt

Suitability Assessment of Groundwater Quality in Sidi Allal Tazi Region Using Water Quality Index

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