Identification of the Potential Sources of Nitrate in Groundwater from Shallow Aquifer in Wadi Qudaid, Western Part of Saudi Arabia

2011 ◽  
Vol 22 (2) ◽  
pp. 1-16
Author(s):  
Abdullah Sonbul ◽  
Mahmoud Alyamani ◽  
Abdullah Sabtan ◽  
Talal Qadhi
Keyword(s):  
Saudi Arabia ◽  
Shallow Aquifer ◽  
Potential Sources ◽  
Wadi Qudaid

scholarly journals Use of Isotope and Solute Chemistry to Define the Sources of Pollution in Mawqaq Groundwater, Hail, Saudi Arabia

2001 ◽  
Vol 6 (2) ◽  
pp. 55
Author(s):  
Ibrahim Abdulaziz Al-Sagaby ◽  
Mohamed Ali Moallim
Keyword(s):  
Drinking Water ◽  
Saudi Arabia ◽  
Monitoring Program ◽  
Environmental Isotopes ◽  
Shallow Aquifer ◽  
Coliform Bacteria ◽  
Remedial Measures ◽  
Sources Of Pollution ◽  
Groundwater Samples ◽  
Solute Chemistry

Groundwater in the area is used for different purposes like domestic, agricultural, industrial and landscaping. More than sixty groundwater samples were collected in an alluvial shallow aquifer in and around Mawqaq Town. The objective was to study groundwater quality and identify the sources of Nitrate (NO3) and bacteriological pollution in groundwater using environmental isotopes (2H, 3H and 18O). The results of the study have revealed the presence of average salinity concentration higher than the permissible limits (500 mg/l) for drinking water. Three groups of water saline boundaries were identified. The presence of high nitrate as nitrogen (NO3-N) was also encountered in the study area. Coliform bacteria have also been identified in some wells. Application of stable isotope has shown the age, origin and the sources of the pollution in the groundwater of Mawqaq area. Appropriate health and municipal authorities of the area have initiated remedial measures and a monitoring program is to be implemented in coordination with these authorities. 

scholarly journals Retail chicken meats as potential sources of Clostridioides difficile in Al-Jouf, Saudi Arabia

2021 ◽  
Vol 15 (07) ◽  
pp. 972-978
Author(s):  
Ahmed Elsayed Taha Attia
Keyword(s):  
Saudi Arabia ◽  
Wide Spectrum ◽  
Human Infection ◽  
Chicken Meat ◽  
Isolation And Identification ◽  
Clostridioides Difficile ◽  
Potential Sources ◽  
Toxigenic Strains ◽  
Antibiotics Sensitivity ◽  
Meat Samples

Introduction: Presence of Clostridioides difficile in stool of food birds and animals is a risk for contamination of their meats to become potential sources of human infection. The main virulence factors of C. difficile are its resistance to antibiotics, production of toxins and spores. As far as I know, this is the first study to evaluate C. difficile prevalence in chicken meats, its toxigenic activities and antibiotics sensitivity patterns in Al-Jouf, Saudi Arabia. Methodology: Totally, 250 raw chicken meat samples were examined. Standard microbiological and biochemical procedures were used for C. difficile isolation and identification. The suspected colonies were tested by L-proline and C. difficile test kits then confirmed by Vitek 2 compact system. Xpect C. difficile toxin A/B test was used to detect A/B toxins production. Antibiotics susceptibility patterns were detected by Epsilon tests. Results: C. difficile was isolated from 11/250 (4.40%) chicken meat samples; 5/65 (7.69%) legs, 3/65 (4.61%) thighs, 2/60 (3.33%) wings and 1/60 (1.67%) breasts (p = 0.4). All isolates were non-toxigenic. Although all isolates were vancomycin sensitive, some isolates were intermediate/resistant to metronidazole, tetracycline, clindamycin or moxifloxacin antibiotics with variable degrees. Conclusions: C. difficile might contaminate retail chicken meats. Although low level of contamination by non-toxigenic strains was detected, chicken meats should be investigated as C. difficile infection sources for humans especially elders, immune-compromised and long terms wide spectrum antibiotics-used persons. Decreased sensitivity of C. difficile to antibiotics is emerging.

scholarly journals Hydrogeology of Wadi Qudaid Area, Northeast Jeddah, West Central Arabian Shield, Saudi Arabia

2017 ◽  
Vol 07 (12) ◽  
pp. 1749-1766 ◽  
Author(s):  
Abdullah R. Sonbul ◽  
Mohammed A. Sharaf ◽  
Ali A. Mesaed
Keyword(s):  
Saudi Arabia ◽  
Arabian Shield ◽  
West Central ◽  
Wadi Qudaid

scholarly journals Geochemical Assessment of Potential Sources for Nitrate in the Wasia Aquifer, Al Kharj Area, Central Saudi Arabia

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1479
Author(s):  
Abid Khogali ◽  
Peter Birkle ◽  
Abdulaziz Al-Shaibani ◽  
Martin Keller ◽  
Bassam Tawabini ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Atmospheric Deposition ◽  
Peripheral Zone ◽  
Anthropogenic Sources ◽  
World Health ◽  
Integrative Approach ◽  
Aquifer System ◽  
Guideline Value ◽  
Potential Sources ◽  
Health Organization

Nitrate (NO3−) represents one of the major groundwater constituents with increasing distribution and concentration in the Kingdom of Saudi Arabia. This study aimed to determine potential sources of nitrate in the Early to Late Cretaceous Wasia aquifer system at the Al Kharj area (Central Saudi Arabia) by an integrative approach using groundwater geochemistry, nitrate isotopes (15N–NO3 and 18O–NO3), and tritium (3H) measurements. The lowest saline groundwater samples (TDS = 1400–2000 mg/L) from the peripheral zone were representative for pristine groundwater from the Wasia aquifer with nitrate concentrations below 20 mg/L and low 18O–NO3 ratios (8.7–20.6‰) but enriched 15N–NO3 values (up to 10.8‰). In contrast, 11 out of 34 analyzed water samples from irrigation wells and cattle watering wells exceeded the World Health Organization (WHO) drinking water guideline value for nitrate of 50 mg/L with maximum concentrations of up to 395 mg/L. Nitrate fertilizers and atmospheric deposition are the main sources of nitrate in groundwater in the eastern and northern sections of the study area. The combination of elevated salinities (4940–7330 mg/L), NO3 (111–395 mg/L), boron (516–1430 μg/L), and enriched 18O–NO3 (21.7–25.8‰) ratios with depleted 15N–NO3 (5.7–7.6‰) confirm the local influx of evaporated irrigation water with remnants of dissolved fertilizer into the Wasia groundwater system. There was no evidence for the influx of animal or human wastes from adjacent dairy, poultry, and housing infrastructures. Tritium concentrations below the detection limit of 0.8 TU for most borehole samples implied the absence of recent natural recharge. The estimated annual average N influx of 3.34 to 6.67 kg/ha to the Wasia aquifer requires a combination of atmospheric deposition and anthropogenic sources (mainly nitrate fertilizers) to increase the nitrogen content of the Wasia aquifer.

Assessment of shallow aquifer salinity in the Aqaba Coastal plain using ERT method: a case study of Maqnah region, northwestern Saudi Arabia

2015 ◽  
Vol 74 (3) ◽  
pp. 2105-2114 ◽  
Author(s):  
Ibrahim M. Bahkaly ◽  
Mahmoud M. El-Waheidi ◽  
Chokri Jallouli ◽  
Awni T. Batayneh
Keyword(s):  
Saudi Arabia ◽  
Coastal Plain ◽  
Shallow Aquifer ◽  
Northwestern Saudi Arabia

Confidence toward vaccination as reported by parents of children admitted to a tertiary care hospital in Riyadh, Saudi Arabia: A cross sectional study

Vacunas ◽  
2020 ◽  
Vol 21 (2) ◽  
pp. 95-104 ◽  
Author(s):  
Y.M. AlGoraini ◽  
N.N. AlDujayn ◽  
M.A. AlRasheed ◽  
Y.E. Bashawri ◽  
S.S. Alsubaie ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Tertiary Care Hospital ◽  
Tertiary Care ◽  
Cross Sectional Study ◽  
Care Hospital ◽  
Sectional Study ◽  
Cross Sectional

Abstract #955: Sheehan Syndrome in a Jizan Region of Saudi Arabia.

2016 ◽  
Vol 22 ◽  
pp. 224
Author(s):  
Subodh Banzal ◽  
Sonal Banzal ◽  
Sadhana Banzal ◽  
Ayobenji Ayoola
Keyword(s):  
Saudi Arabia ◽  
Sheehan Syndrome
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