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Copyright: © 2018. Akhigbe. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Received: 30 November -0001 | Accepted: 23 February 2018 | Published: 24 June 2021
Keywords: Waste, surface water, groundwater, water quality, hydrochemistry.
This study aims at evaluating and assessing the impact of domestic and industrial wastes on surface and groundwater quality within the Slaughter area, Trans Amadi industrial layout, Port Harcourt, Nigeria. Standard sampling techniques where adopted. Twenty (20) water samples comprising of ten (10) boreholes and ten (10) surface water samples collected from the study area. Results reveaed slightly acidic water for both the surface and bore water in the area. These parameters were compared with the World Health Organization (WHO) guidelines for drinking water quality. The results from the analyses of the borehole samples yielded parameters that met the requirements by WHO, with exception of Iron (Fe) that had values at some locations above the maximum 0.3 mg/l. This was considered to probably be as a result of corrosion from pipes used in water distribution or dissolution arising from high fabrication activities with in and around the study area. None of the surface water samples met the WHO requirments for drinking water quality. The hydrochemical facies of the water samples were identified by plotting the results of the major cations and anions in milliequivalent per litre in the Piper Trilinear diagram. All the analysed water samples of both the borehole and surface water samples plotted within the Na+ - K+ - Cl- - SO42+ hydrochemical facies, indicating origin from halite dissolution (Saline). The surface water samples were tested against their suitability for irrigation purposes by plotting electrical conductivity which is a measure of the salinity hazard in the use of water for irrigation against Sodium adsorption ratio (SAR) expressed in milliequivalent per litre, in water classification diagram for irrigation. The result yielded high salinity water (C3) - Medium sodium water (S2) and Very high salinity water (C4) - High sodium water (S3) suggesting that adequate care is required in the use of the surface water for the purposes of irrigation. It is therefore recommended that regular water quality monitoring in the area be carried out for proper environmental protection and sustainability.
In most of the developing countries, municipal solid waste (MSW) disposal has been a chronic problem, particularly in areas with high population density and high production of refuse. Scarcity of land for adequate for landfills often gives rise to indiscriminate dumping of refuse in surface water bodies and improper landfill systems. Landfills or open dumps have been demonstrated by several workers to pose serious threat to groundwater and surface water resources (Fatta et al., 1999; USEPA 1984), especially those constructed and operated without impermeable layers meant to reduce the potential of contamination. The degree of threat is strongly influenced by the composition of the wastes in the landfill, the volume of leachates generated, as well as the Location of the landfill from water bodies such as groundwater and surface water (Slomwcznska and Slomcyznski, 2004). This in turn has led to pollution of surface and groundwater causing over 20% of the world population (around 1.3 billion people) not to access safe drinking water. Water can be polluted by substances that dissolve in it or by solid particles and insoluble liquid droplets that become suspended in it. The Slaughter area in Port Harcourt, Rivers State, Nigeria (Fig. 1), is surrounded by water bodies and is the hub for major commercial and industrial activities. These water bodies have become regions for indiscriminate waste disposals for the commercial activities (Fig. 2) as well as effluents from the industries within and around the Slaughter area (Fig. 3). There is little or no awareness by the inhabitants in the Slaughter area of the danger that this indiscriminate dumping of refuse would pose to the groundwater resource. This study therefore, examines selected borehole water and some surface water locations for water quality parameters to determine their suitability for drinking and other purposes.
There are high concentrations of commercial/domestic and industrial activities within and around the study area. These gave rise to high generation of both industrial and commercial/domestic waste within the study area. In the light of the above, there is no documented impact assessment of these commercial/domestic and industrial waste in the study area thereby not allowing for proper environmental monitoring. This study is aimed at assessing the borehole and surface water quality parameters of the Slaughter Area of Port Harcourt for drinking and other purposes.
Location of Study Area
The study area lies within Longitudes 7002′00″ and 7004′10″ E; and between Latitudes 4049′00″ and 4050′00″ N of the Equator (Fig. 3). Rain falls in the study area almost all the year round and generally very heavy. The average annual rainfall is about 3200 mm. The mean maximum monthly temperatures range from 28°C to 33°C, while the mean minimum monthly temperatures are within the range of 17°C to 24°C. The hottest months are February to May. The relative humidity is high throughout the year and decreases slightly during the dry season (Ige, 2011).
The vegetation of the study area comprises of an upland area dominated by rainforest with such economic trees as oil palm and the riverine area which is divided into three main hydro-vegetation zones; the beach ridge zone, the saltwater zone and the freshwater zone. The beach ridge zone consists of fresh water swamp trees, palms and shrubs on the sandy ridges and mangroves in the tidal flats. The saltwater zone consists of the tidal flat vegetated by red stilts rooted mangrove (Flhizophora racemose) and two other species of mangrove. The outliers of raised coastal plain terrace within the tidal flats are vegetated by tall forest tree species and oil palm. The freshwater zone consists of the Upper and Lower Delta flood plains.
Relief in the study area may be grouped into three; the fresh water, the mangrove swamp and the Coastal sand ridges zone. The fresh water zone consists of the flood plain under 20m above the sea level. It consists of silt and clay and it is more susceptible to perennial inundation by river floods. The southern part is affected by great tidal influence. Most water channels in the fresh water zone are bordered by natural levees, which are of great topographical interest and of great economic importance to the local people for settlements and crop cultivation. The upland is undulating to the hinterland; narrow strip of sandy ridges and beach ridges lies very close to the open sea. The soils of the sandy ridges are mostly sandy loams.
Drainage in the study area is poor because of the low-lying flood plain with much of the surface covered with water. The study area is drained by two main sources; the fresh water system whose waters originate either outside or wholly from the coastal lowlands including the Bonny and Calabar river systems and a host of effluent creeks and streams, and a tidal system.
The study area lies on the Coastal Plain of the Niger Delta. The geology of the study area consists of Recent fluvial deposits transported and redistributed by the Niger River distributaries. The depositional sequences signify a massive continental sand deposit overlying an alternation of sandstones and clays of marginal marine origin grading into marine clays. The study area consists mainly in the surface, sandy deposits belonging to the Benin Formation of the Niger Delta litho-stratigraphic unit. The subsurface geology comprises of the following rock-stratigraphic subdivision; Benin Formation, Agbada Formation, and Akata Formation (Short and Stauble, 1967). These Formations range in age from Eocene to Recent.
Fig. 1: Waste Dumps in the study area.
Table 1: Equipment and Analytical Methods used for Groundwater Samples Analysis
Sodium Hazard Assessment
The mineralogical parameters on which the water was assessed for its use for irrigation purposes include the following:
% Na+ = (Na+) X 100/ (Ca2+ + Mg2+ + Na+1 + K+1)………………. (1) after Wilcox, (1955).
The concentrations of Ca2+, Mg2+, Na+1 and K+1 expressed in milliequivalents per litre (meq/l).
Another method of determining the Sodium hazard in water is by Sodium Adsorptio Ratio (SAR) (Table 4.5) using the following equation.
SAR=NaCa+Mg/2
………………………………………………………………………… (2)
RSC (Residual sodium carbonate) is given as follows:
RSC = (HCO3- + CO32-) – (Ca2+ + Mg2+)…………………………….…………….. (3)
Where all the mineral concentrations are expressed in milliequivalents (meq/l)
The Piper trilinear diagram is used in the classification of the hydrochemical facies present within the ground water. In plotting the Piper trilinear diagram, ionic concentrations of the major cations and anions in milligrams per liter (mg/l) were converted to milliequivallent per liter using the following formulae:
concentration in meq/l=concentration in mg/l×valencemolecular weight of ion
………………………………. (4)
The milliequivalent per litre of the ions is the milliequivalent of the ion in one litre of a solution
Results and Discussion
Borehole water samples Table 2b: Analytical results for the surface water samples Table 4: Classification of groundwater for irrigation with respect to percent sodium
Table 5: Sodium Adsorption Ratio (SAR) in study Area Table 6: Classification of water for irrigation with respect to sodium hazard Table 8: RSC water classification for irrigation in study Area Fig.7 : Sodium Hazard Classification of the surface water samples in the study area (modified from Wilcox, 1955). The water classification diagram for irrigation purposes consists of two major components vis: conductivity (C1 – C4) and Sodium (S1 – S4) components. C1 represents conductivity in low – salinity water; C2, conductivity in medium salinity water; C3, conductivity in high salinity water and C4, conductivity in very high salinity water while S1 represents low sodium water; S2, medium sodium water; S3, high sodium water and S4 very high sodium water. The surface water analysed plotted in C3 - S2 and C4 - S3 sections corresponding to high salinity and medium sodium water; and very high salinity and high sodium water. High salinity water (C3) can only be used for irrigation on selected plants with good salt tolerance, while Medium sodium water (S2) can only be used on coarse-textured or organic soils with good permeability (Wilcox, 1955). Very high salinity water (C4) is not suitable for irrigation under ordinary conditions but may be used in soils with very high permeability and adequate drainage system. Irrigation water must be applied in excess to provide considerable leaching and must be applied only on very high tolerant crops, while High sodium water (S3) may produce harmful degree of exchangeable sodium in most soils and will require special soil management. In all cases, adequate care is required in the use of the surface water for the purposes of irrigation. Methods of StudySamples were collected from ten (10) boreholes and ten (10) surface water sampling points in plastic sampling bottles. Sterilized water bottles were used to collect representative water samples to prevent contamination. At each borehole location, the sample bottles were washed and rinsed thoroughly with the sample water before being sampled. The samples were collected close to the well head to maintain the water integrity. The boreholes were allowed to flow for about 3 minutes to ensure stable conditions before samples were collected. The bottle was filled to the brim with the sample water, and the lid immediately replaced to minimize oxygen contamination and escape of dissolved gases. Sampling was done using two sets of prelabelled bottles of one litre capacity for ionic and heavy metals analysis respectively. Water samples for the determination of cations were stabilized by adding few drops of diluted HCl to them after collection. To maintain the integrity of the water samples, physico-chemical parameters sensitive to environmental changes such as pH, conductivity and temperature were measured and recorded in-situ using portable digital meters. The co-ordinates of all the sampling locations were recorded using a Garmin 78 model Geographic Positioning System (GPS). The samples were later transported to the laboratory in an ice chest for chemical analysis. Table 1 shows the analytical methods. Heavy metals were determined using an Atomic Absorption Spectrophotometer (AAS) as described in APHA 3111B and ASTM D3651. This involved direct aspiration of the sample into an air/acetylene or nitrous oxide/acetylene flame generated by a hollow cathode lamp at a specific wavelength peculiar only to the metal programmed for analysis. For every metal investigated, standards and blanks were prepared and used for calibration before samples were aspirated. Concentrations at specific absorbance displayed on the data system monitor for printing. The equipment limit of detection is <0.001 mg/L. Table 1 shows the analytical methods used for analysis. Type of test | Equipment/Analytical Method In-situ | Mercury-in-glass thermometer | Digital conductivity meter Laboratory | HACH2100AN tubidimeter | Direct atomic absorption | Filtration and evaporation | Silver nitrate titration | Atomic absorption spectrophotometer APHA2130B | ||||||||||||||||||||
Calcium, Magnesium, Potassium, Alkalinity ASTM512B | ||||||||||||||||||||||||||||
Total Dissolved Solids APHA 2510A | ||||||||||||||||||||||||||||
Sulphate and Phosphate pH | Temperature (ºc) | Temperature (ºc) The pH of the samples analysed ranges between 5 and 6 with a mean value of 5.6 in the borehole water samples and 6.3 to 7.1 with a mean value of 6.8 in the surface water samples (Tables 2a & b). pH is an expression of the neutrality of acid or alkali in the water. The scale between 0 and 7 signifies acidity, 7 neutral, and 7 - 14 alkalinity. Considerable changes in water pH usually occur partly as a result of industrial discharges among other sources (Nwankwoala, 2008). This could make the water unsuitable for drinking and other uses for industry and agriculture. For groundwater samples, the pH is acidic, and for surface water, results indicate that the pH is within the recommended guideline by NSDWQ, (2007); WHO (2006; 2011). Electrical Conductivity The values of electrical conductivity generated from the samples analyzed ranged from 10µS/cm to 70 µS/cm with a mean value of 30 µS/cm in the borehole water samples and 1400 µS/cm to 3500 µS/cm with a mean value of 27000 µS/cm in the surface water samples (Tables 2a & b). Total Dissolved Solids (TDS) TDS generated for the borehole water samples analyzed is 20 mg/l for all the sampled boreholes and ranged from 13460 mg/l to 14780 mg/l with a mean value of 14079 mg/l for the surface water samples (Tables 1a & b). Total Suspended Solids (TSS) The values of TSS generated from the samples analyzed ranged from 1.3 mg/l to 10 mg/l with a mean value of 3.6 mg/l in the borehole water samples and 920 mg/l to 1870 mg/l with a mean value of 1302 mg/l in the surface water samples (Tables 2a & b). Dissolved Oxygen (DO) The DO values generated from the samples analyzed ranged from 4.6 mg/l to 6.6 mg/g with a mean value of 5.4 mg/l in the borehole samples and 1.44 mg/l to 5.64 mg/l with a mean value of 3.8 mg/l in the surface water samples (Tables 2a & b). Alkalinity (mg/l) | Conductivity (µs/cm) | Conductivity (µs/cm) TSS (mg/l) | Total Hardness (mg/l) | Total Hardness (mg/l) NA | ||||||||||||||||||||||
Table 2a: Analytical results for the borehole water samples
Surface water samples TemperatureThe temperature in the water samples analysed ranges between 27°C to 31°C with a mean value of 30.2°C in the borehole water samples and 26.5°C to 31.1°C with a mean value of 30.2°C in the surface water samples (Tables 2a & b). Temperature is an important water quality parameter because it affects the physical, chemical and biological activates in water. When the water temperature is high, there is an increase in the rate of chemical processes and solubility of gases such as oxygen, carbon dioxide, nitrogen while others decrease. Total HardnessThe water hardness ranged from 1.6 mg/l to 28 mg/l in borehole samples and 830.6 mg/l to 3100 mg/l in the surface water samples. Water hardness is a result of concentrations of calcium and magnesium (cations) and carbonate, bicarbonate, chloride and sulphate (anions) in water. The water hardness was classified based on Sawyer and McCarty’s, 1967 classification for water hardness. The result from the classification scheme (Table 3) showed that the borehole water samples are soft and good for domestic use. The surface water samples are very hard resulting from high concentrations of calcium and magnesium ions, the mean value of calcium concentration for the surface water is 49.5mg/l against the 500mg/l limit stipulated by WHO, 2011 while the mean value of magnesium concentration for the surface water is 106.7mg/l against the 500mg/l limit stipulated by WHO, (2011). Figure 4a shows the plot of conductivity, total hardness and dissolved oxygen against borehole sample locations while figure 4b is the plot of conductivity, total hardness and dissolved oxygen against surface water sample locations.
Figure 4a: Plot of conductivity, total hardness and dissolved oxygen against borehole sample locations. Figure 4b: Plot of conductivity, total hardness and dissolved oxygen against surface water sample locations Distributions of Cations Calcium ranges in concentrations from 0 mg/l to 0.3 mg/l with a mean value of 0.1 mg/l in the borehole water samples and 28.446 mg/l to 55.54 mg/l with a mean value of 49.5 mg/l in the surface water; Magnesium ranges in concentrations from 0.35 mg/l to 0.86 mg/l with a mean value of 0.6 mg/l in the borehole samples and 29.10mg/l to 121.87mg/l with a mean value of 106.7 mg/l in the surface water samples. Sodium ranges in concentrations from 0.13 mg/l to 5.53 mg/l with a mean value of 0.8 mg/l in borehole water samples and 480.09 mg/l to 531.94 mg/l with a mean value of 503.7 mg/l in the surface water samples. Potassium ranges in concentrations from 2.7 mg/l to 3.14 mg/l with a mean value of 2.9 mg/l in borehole water samples and 94.62 mg/l to 125.01 mg/l with a mean value of 105.9 mg/l in surface water samples. Calcium, magnesium, sodium, and potassium are the dominant constituents present in water in significant concentrations. Calcium, magnesium and potassium are major plant nutrients. Sodium is not a plant major nutrient and can be toxic to some plant in higher concentrations. The values of iron generated from the samples analyzed ranged from 0 mg/l to 2.8 mg/l with a mean value of 1.6 mg/l in the borehole samples and 0.795 mg/l to 11.375 mg/l with a mean value of 4.3 mg/l in the surface water samples (Tables 2a & b). 0.3 mg/l is set by WHO, 2011 for iron concentration in drinking water. The increase in concentrations of iron (Fe) seen in these boreholes could result from corrosion of steel and cast iron pipes used in water distribution from the boreholes. It could also result from dossolution and infiltration into the aquifers from the high activities of metal fabrications within and around the studied area. Iron (Fe) is one of the most abundant metals occuring within the Earth’s crust. It occurs in the range of 0.5 – 50mg/L in natural fresh water. Within humans and all other animals, iron plays a crucial role of carrying oxygen within the blood in the form of hemoglobin. Excess iron in drinking water can produce an unpleasant taste and stain home fixtures. Iron is transported into the environment mostly through water and is naturally present in groundwater (Nwankwoala and Ngah, 2014). However, drainage from abandoned mines can deliver toxic levels of iron into rivers and streams. The values of zinc generated from the samples analyzed ranged from 0 mg/l to 0.1 mg/l with a mean value of 0.03 mg/l in borehole water samples and 0 mg/l to 0.3 mg/l with a mean value of 0.1 mg/l in the surface water samples (Tables 2a & b). Zinc is a bluish – white shiny metal that is typically extracted from ore deep within the earth’s crust. Zinc is the 24th most abundant element in the earth’s crust. In soil, the average zinc concentration is 64 ppm. Zinc is often found in the water supply as a dissolved constituent since zinc compounds are highly soluble in water. One example is rainwater picking up zinc when it gets into contact with galvanized surfaces. Zinc occurs as particulate zinc and dissolved zinc as Zn2+. Zinc is an important dietary element, but concentrations above 5 mg/L can impart an unpleasant taste to water. Exposure to large amounts of zinc can cause stomach cramps and anaemia, and also can decrease good cholesterol. In marine waters, aquatic species suffer acute effects from zinc at 90 μg/l. Adverse effects of dissolved zinc, include altered behaviour, blood and serum chemistry, impaired reproduction, and reduced growth occurs in salmon at very low levels (5.6 μg/l in freshwater). In mammals, ingesting large amounts of zinc can cause infertility and underweight of off-springs. Figure 5a is the plot of cations concentrations against borehole sample locations while Figure 5b is the plot of cations concentrations against surface water sample locations. Figure 5a: Plot of Cations concentrations against borehole sample locations Figure 5b: Plot of Cations concentrations against surface water sample locations Distributions of Anions The important anions present in water in significant concentrations include Bicarbonates, Chloride, Sulphate, Carbonates and Nitrate. Bicarbonate concentrations in the samples analysed ranges from 3.6 mg/l to 11 mg/l with a mean value of 6.6 mg/l in the borehole water samples and 25.6 mg/l to 36 mg/l with a mean value of 28.1 mg/l in the surface water samples Chloride concentrations in the samples analysed ranges from 7.2 mg/l to 25.6 mg/l with a mean value of 12.2 mg/l in the borehole sample and 1880 mg/l to 8640 mg/l with a mean value of 6769 mg/l in the surface water samples. Sulphate concentrations in the samples analysed is 0.69 mg/l for the borehole and ranges from 106.6 mg/l to 417 mg/l with a mean value of 301.5 mg/l in the surface water samples; while carbonate concentrations in the water samples analysed ranges from 3.6 mg/l to 11 mg/l with a mean value of 6.6 mg/l in the borehole water samples and from 24.5 mg/l to 36 mg/l with a mean value of 28.6 mg/l in the surface water samples. Sulphate and nitrates are major plant nutrients. High concentration of chloride is toxic to some plants, concentrations of carbonates and bicarbonates in the water give the total alkalinity and pH rating of the water. The concentrations of the anions are plotted in scatter diagrams. Figure6a: Plot of some anions concentrations against borehole sample locations Fig. 6b: Plot of some anions concentrations against surface water sample locations Quality Evaluation for Agricultural Purposes The results generated from analysing the borehole and surface water samples are discussed on the bases of the suitability of the water quality for drinking and domestic uses, variations in the hydrochemical facies of the ground water samples and suitability of the surface water for irrigation purposes. The different water quality parameters measured were compared with WHO (2011) guidelines for drinking water quality. The result shows that all the parameneters analysed for in the borehole water samples met the required concentrations for the WHO (2011) guidelines for drinking water quality with exemption to concentrations of Iron (Fe) in all the boreholes apart from boreholes BH5 and BH10. On the other hand, all the parameters analysed for in the surface water, all exceeded the required concentrations for the WHO (2011) guidelines for drinking water quality with exemption to pH and concentrations of potassium (K) which were within the required concentration. Concentration of Bicarbonate (HCO3); high concentration of bicarbonate in water can cause precipitation of calcium and magnesium thereby increasing the Sodium concentration in the form of Residual Sodium Carbonate (RSC). The United States of America, Agriculture Department classification of ground water for irrigation with respect to percent sodium is given below (Table 3). The United States of America, Agriculture department classification of water for irrigation with respect to sodium hazard is given below (Table 4). The United States of America, Agriculture Department (RSC) water classification for irrigation is given below (Table 5). Table 6 is the classification of water for irrigation with respect to sodium hazard. Fig.7 is the Sodium Hazard Classification of the surface water samples in the study area (modified from Wilcox, 1955). (Na+) X 100 | (Ca2+ + Mg2+ + Na+1 + K+1) 61 | ||||||||||||||||||||
Table 3: Percent Sodium values for the surface water samples.
Surface water analysed
SW1, 2, 3, 6 & SW7
SAR in Equivalents per mole
Table 7: RSC values for the surface water samples in study Area
The graphical representations of the groundwater with major cations and anions in the Piper trilinear diagram helps in the understanding of the hydrochemical evolution, groupings and probably, areal distribution of the water types (Piper, 1944). Generally, ground water is classified on the basis of the dominant cations and anions concentrations into four (i – iv) hydrochemical facies by expressing the concentrations of the cations and anions in milliequivalent per liter of the ground water.
These hydrochemical facies classifications of Piper, (1944) include the following:
The hydrochemical facies for the borehole and surface water samples analysed in the study area plotted in the (Na+ - K+ - Cl- - SO42+ facies); hydrochemical facies (ii) which corresponds to the region of saline water type (Figs.8a & b). This suggest that the source of the the borehole and surface water samples are from halite dissolution (Saline) which supported the work of Nwankwoala and Udom, (2011).
Fig.8a: Piper trilinear diagram for major cations and anions in the borehole water samples in the study area (after Piper, 1944).
Fig.8b: Piper trilinear diagram for major cations and anions in the surface water samples in the study area (after Piper, 1944).
The results from the analyses of the borehole samples yielded parameters that met the requirements provided by WHO, (2011), with exception of Iron (Fe) that ranged between (0 - 2.8) mg/l above the maximum 0.3 mg/l stipulated by WHO, (2011). This was considered to probably be as a result of corrosion from pipes used in water distribution or dissolution and infiltration from high fabrication activities within and around the study area. The hydrochemical facies of the water samples were identified by plotting the normalized concentrations of the major cations and anions in milliequivalent per litre on the Piper trilinear diagram. All the analysed water samples of both the borehole and surface water samples plotted within the Na+ - K+ - Cl- - SO42+ hydrochemical facie indicating origin from halite dissolution (Saline). The surface water samples were tested against their suitability for irrigation purposes by plotting electrical conductivity which is a measure of the salinity hazard in the use of water for irrigation against Sodium adsorption ratio expressed in milliequivalent per litre in water classification diagram for irrigation. The result yielded High salinity water (C3) - Medium sodium water (S2) and Very high salinity water (C4) - High sodium water (S3) suggesting that adequate care is required in the use of the surface water for the purposes of irrigation.
The borehole samples meet the requirements stipulated by the World Health Organization, (2011) guideline for drinking water quality. The surface water samples did not meet the requirements stipulated by the World Health Organization, (2011) guideline for drinking water quality. The hydrochemical facies analyses of the borehole and surface water samples plotted within the (Na+ - K+ - Cl- - SO42+) which indicates origine from halite dissolution (Saline). The water classification diagram of the surface water samples for irrigation purposes suggests that adequate care is required in the use of the surface water for the purposes of irrigation.
It is therefore recommended from the foregoing that proper landfill system should be provided and maintained for proper environmental sanitation in the study area. This will minimize and completely discourage indescrimate dumping of refuse into the surface water which contributed to the high values of the analysed parameters in the studied surface water samples, and also reduce the tendency to which the pollutant will percolate into the ground water aquifer. The study area may be developed, using the surface water as a medium for other recreational activities and as channels for water transportation but not for drinking and domestic use.
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Dear Erica Kelsey, Editorial Coordinator of Cancer Research and Cellular Therapeutics Our team is very satisfied with the processing of our paper by your journal. That was fast, efficient, rigorous, but without unnecessary complications. We appreciated the very short time between the submission of the paper and its publication on line on your site.
I am very glad to say that the peer review process is very successful and fast and support from the Editorial Office. Therefore, I would like to continue our scientific relationship for a long time. And I especially thank you for your kindly attention towards my article. Have a good day!
"We recently published an article entitled “Influence of beta-Cyclodextrins upon the Degradation of Carbofuran Derivatives under Alkaline Conditions" in the Journal of “Pesticides and Biofertilizers” to show that the cyclodextrins protect the carbamates increasing their half-life time in the presence of basic conditions This will be very helpful to understand carbofuran behaviour in the analytical, agro-environmental and food areas. We greatly appreciated the interaction with the editor and the editorial team; we were particularly well accompanied during the course of the revision process, since all various steps towards publication were short and without delay".
I would like to express my gratitude towards you process of article review and submission. I found this to be very fair and expedient. Your follow up has been excellent. I have many publications in national and international journal and your process has been one of the best so far. Keep up the great work.
We are grateful for this opportunity to provide a glowing recommendation to the Journal of Psychiatry and Psychotherapy. We found that the editorial team were very supportive, helpful, kept us abreast of timelines and over all very professional in nature. The peer review process was rigorous, efficient and constructive that really enhanced our article submission. The experience with this journal remains one of our best ever and we look forward to providing future submissions in the near future.
I am very pleased to serve as EBM of the journal, I hope many years of my experience in stem cells can help the journal from one way or another. As we know, stem cells hold great potential for regenerative medicine, which are mostly used to promote the repair response of diseased, dysfunctional or injured tissue using stem cells or their derivatives. I think Stem Cell Research and Therapeutics International is a great platform to publish and share the understanding towards the biology and translational or clinical application of stem cells.
I would like to give my testimony in the support I have got by the peer review process and to support the editorial office where they were of asset to support young author like me to be encouraged to publish their work in your respected journal and globalize and share knowledge across the globe. I really give my great gratitude to your journal and the peer review including the editorial office.
I am delighted to publish our manuscript entitled "A Perspective on Cocaine Induced Stroke - Its Mechanisms and Management" in the Journal of Neuroscience and Neurological Surgery. The peer review process, support from the editorial office, and quality of the journal are excellent. The manuscripts published are of high quality and of excellent scientific value. I recommend this journal very much to colleagues.
Dr.Tania Muñoz, My experience as researcher and author of a review article in The Journal Clinical Cardiology and Interventions has been very enriching and stimulating. The editorial team is excellent, performs its work with absolute responsibility and delivery. They are proactive, dynamic and receptive to all proposals. Supporting at all times the vast universe of authors who choose them as an option for publication. The team of review specialists, members of the editorial board, are brilliant professionals, with remarkable performance in medical research and scientific methodology. Together they form a frontline team that consolidates the JCCI as a magnificent option for the publication and review of high-level medical articles and broad collective interest. I am honored to be able to share my review article and open to receive all your comments.
“The peer review process of JPMHC is quick and effective. Authors are benefited by good and professional reviewers with huge experience in the field of psychology and mental health. The support from the editorial office is very professional. People to contact to are friendly and happy to help and assist any query authors might have. Quality of the Journal is scientific and publishes ground-breaking research on mental health that is useful for other professionals in the field”.
Dear editorial department: On behalf of our team, I hereby certify the reliability and superiority of the International Journal of Clinical Case Reports and Reviews in the peer review process, editorial support, and journal quality. Firstly, the peer review process of the International Journal of Clinical Case Reports and Reviews is rigorous, fair, transparent, fast, and of high quality. The editorial department invites experts from relevant fields as anonymous reviewers to review all submitted manuscripts. These experts have rich academic backgrounds and experience, and can accurately evaluate the academic quality, originality, and suitability of manuscripts. The editorial department is committed to ensuring the rigor of the peer review process, while also making every effort to ensure a fast review cycle to meet the needs of authors and the academic community. Secondly, the editorial team of the International Journal of Clinical Case Reports and Reviews is composed of a group of senior scholars and professionals with rich experience and professional knowledge in related fields. The editorial department is committed to assisting authors in improving their manuscripts, ensuring their academic accuracy, clarity, and completeness. Editors actively collaborate with authors, providing useful suggestions and feedback to promote the improvement and development of the manuscript. We believe that the support of the editorial department is one of the key factors in ensuring the quality of the journal. Finally, the International Journal of Clinical Case Reports and Reviews is renowned for its high- quality articles and strict academic standards. The editorial department is committed to publishing innovative and academically valuable research results to promote the development and progress of related fields. The International Journal of Clinical Case Reports and Reviews is reasonably priced and ensures excellent service and quality ratio, allowing authors to obtain high-level academic publishing opportunities in an affordable manner. I hereby solemnly declare that the International Journal of Clinical Case Reports and Reviews has a high level of credibility and superiority in terms of peer review process, editorial support, reasonable fees, and journal quality. Sincerely, Rui Tao.
Clinical Cardiology and Cardiovascular Interventions I testity the covering of the peer review process, support from the editorial office, and quality of the journal.
Clinical Cardiology and Cardiovascular Interventions, we deeply appreciate the interest shown in our work and its publication. It has been a true pleasure to collaborate with you. The peer review process, as well as the support provided by the editorial office, have been exceptional, and the quality of the journal is very high, which was a determining factor in our decision to publish with you.
The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews journal clinically in the future time.
Clinical Cardiology and Cardiovascular Interventions, I would like to express my sincerest gratitude for the trust placed in our team for the publication in your journal. It has been a true pleasure to collaborate with you on this project. I am pleased to inform you that both the peer review process and the attention from the editorial coordination have been excellent. Your team has worked with dedication and professionalism to ensure that your publication meets the highest standards of quality. We are confident that this collaboration will result in mutual success, and we are eager to see the fruits of this shared effort.
Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, I hope this message finds you well. I want to express my utmost gratitude for your excellent work and for the dedication and speed in the publication process of my article titled "Navigating Innovation: Qualitative Insights on Using Technology for Health Education in Acute Coronary Syndrome Patients." I am very satisfied with the peer review process, the support from the editorial office, and the quality of the journal. I hope we can maintain our scientific relationship in the long term.
Dear Monica Gissare, - Editorial Coordinator of Nutrition and Food Processing. ¨My testimony with you is truly professional, with a positive response regarding the follow-up of the article and its review, you took into account my qualities and the importance of the topic¨.
Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, The review process for the article “The Handling of Anti-aggregants and Anticoagulants in the Oncologic Heart Patient Submitted to Surgery” was extremely rigorous and detailed. From the initial submission to the final acceptance, the editorial team at the “Journal of Clinical Cardiology and Cardiovascular Interventions” demonstrated a high level of professionalism and dedication. The reviewers provided constructive and detailed feedback, which was essential for improving the quality of our work. Communication was always clear and efficient, ensuring that all our questions were promptly addressed. The quality of the “Journal of Clinical Cardiology and Cardiovascular Interventions” is undeniable. It is a peer-reviewed, open-access publication dedicated exclusively to disseminating high-quality research in the field of clinical cardiology and cardiovascular interventions. The journal's impact factor is currently under evaluation, and it is indexed in reputable databases, which further reinforces its credibility and relevance in the scientific field. I highly recommend this journal to researchers looking for a reputable platform to publish their studies.
Dear Editorial Coordinator of the Journal of Nutrition and Food Processing! "I would like to thank the Journal of Nutrition and Food Processing for including and publishing my article. The peer review process was very quick, movement and precise. The Editorial Board has done an extremely conscientious job with much help, valuable comments and advices. I find the journal very valuable from a professional point of view, thank you very much for allowing me to be part of it and I would like to participate in the future!”
Dealing with The Journal of Neurology and Neurological Surgery was very smooth and comprehensive. The office staff took time to address my needs and the response from editors and the office was prompt and fair. I certainly hope to publish with this journal again.Their professionalism is apparent and more than satisfactory. Susan Weiner
My Testimonial Covering as fellowing: Lin-Show Chin. The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews.
My experience publishing in Psychology and Mental Health Care was exceptional. The peer review process was rigorous and constructive, with reviewers providing valuable insights that helped enhance the quality of our work. The editorial team was highly supportive and responsive, making the submission process smooth and efficient. The journal's commitment to high standards and academic rigor makes it a respected platform for quality research. I am grateful for the opportunity to publish in such a reputable journal.
My experience publishing in International Journal of Clinical Case Reports and Reviews was exceptional. I Come forth to Provide a Testimonial Covering the Peer Review Process and the editorial office for the Professional and Impartial Evaluation of the Manuscript.
I would like to offer my testimony in the support. I have received through the peer review process and support the editorial office where they are to support young authors like me, encourage them to publish their work in your esteemed journals, and globalize and share knowledge globally. I really appreciate your journal, peer review, and editorial office.
Dear Agrippa Hilda- Editorial Coordinator of Journal of Neuroscience and Neurological Surgery, "The peer review process was very quick and of high quality, which can also be seen in the articles in the journal. The collaboration with the editorial office was very good."
I would like to express my sincere gratitude for the support and efficiency provided by the editorial office throughout the publication process of my article, “Delayed Vulvar Metastases from Rectal Carcinoma: A Case Report.” I greatly appreciate the assistance and guidance I received from your team, which made the entire process smooth and efficient. The peer review process was thorough and constructive, contributing to the overall quality of the final article. I am very grateful for the high level of professionalism and commitment shown by the editorial staff, and I look forward to maintaining a long-term collaboration with the International Journal of Clinical Case Reports and Reviews.
To Dear Erin Aust, I would like to express my heartfelt appreciation for the opportunity to have my work published in this esteemed journal. The entire publication process was smooth and well-organized, and I am extremely satisfied with the final result. The Editorial Team demonstrated the utmost professionalism, providing prompt and insightful feedback throughout the review process. Their clear communication and constructive suggestions were invaluable in enhancing my manuscript, and their meticulous attention to detail and dedication to quality are truly commendable. Additionally, the support from the Editorial Office was exceptional. From the initial submission to the final publication, I was guided through every step of the process with great care and professionalism. The team's responsiveness and assistance made the entire experience both easy and stress-free. I am also deeply impressed by the quality and reputation of the journal. It is an honor to have my research featured in such a respected publication, and I am confident that it will make a meaningful contribution to the field.
"I am grateful for the opportunity of contributing to [International Journal of Clinical Case Reports and Reviews] and for the rigorous review process that enhances the quality of research published in your esteemed journal. I sincerely appreciate the time and effort of your team who have dedicatedly helped me in improvising changes and modifying my manuscript. The insightful comments and constructive feedback provided have been invaluable in refining and strengthening my work".
I thank the ‘Journal of Clinical Research and Reports’ for accepting this article for publication. This is a rigorously peer reviewed journal which is on all major global scientific data bases. I note the review process was prompt, thorough and professionally critical. It gave us an insight into a number of important scientific/statistical issues. The review prompted us to review the relevant literature again and look at the limitations of the study. The peer reviewers were open, clear in the instructions and the editorial team was very prompt in their communication. This journal certainly publishes quality research articles. I would recommend the journal for any future publications.
Dear Jessica Magne, with gratitude for the joint work. Fast process of receiving and processing the submitted scientific materials in “Clinical Cardiology and Cardiovascular Interventions”. High level of competence of the editors with clear and correct recommendations and ideas for enriching the article.
We found the peer review process quick and positive in its input. The support from the editorial officer has been very agile, always with the intention of improving the article and taking into account our subsequent corrections.
