Groundwater quality and health assessments based on heavy metals and trace elementscontent in DakhlaOasis,NewValley Governorate,Egypt

Banyuurip landfill generates leachate containing suspended and dissolved matter, including some heavy metals, a result of waste degradation and decomposition of organic materials. Leachate can infiltrate the soil then contaminate groundwater. Once the leachate infiltration reaches the soil and groundwater, it will contaminate the surrounding environment. In this study, the contamination of leachate into ground water was investigated by measuring the concentration of Manganese (Mn), Iron (Fe) and Free Ammonia (NH3-N) in leachate and dug wells surrounding the landfill. The concentration of Mn, Fe and NH3-N in leachate was found to be 5.42 mg/L, 6.16 mg/L, and 1652 mg/L, respectively. The concentration in the surrounding dug wells located within 500 m from the landfill varied from 0.00 – 0.86 mg/L for free ammonia, 0.00 – 0.31 mg/L for total Fe, and 0.00 – 0.26 mg/L for total Mn. The concentration of Mn, Fe and NH3-N decrease with increasing distance between the landfill and wells.

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Use of Heavy Metal Content and Modified Water Quality Index to Assess Groundwater Quality in a Semiarid Area

Water ◽

10.3390/w12041115 ◽

2020 ◽

Vol 12 (4) ◽

pp. 1115 ◽

Cited By ~ 4

Author(s):

Ehsan Maskooni ◽

Mehran Naseri-Rad ◽

Ronny Berndtsson ◽

Kei Nakagawa

Keyword(s):

Heavy Metals ◽

Water Quality ◽

Heavy Metal ◽

Water Supply ◽

Groundwater Quality ◽

Metal Content ◽

Quality Index ◽

Oxygen Demand ◽

Heavy Metal Content ◽

Entropy Weighted

Groundwater is a major source of drinking and agricultural water supply in arid and semiarid regions. Poor groundwater quality can be a threat to human health especially when it is combined with hazardous pollutants like heavy metals. In this study, an innovative method involving entropy weighted groundwater quality index for both physicochemical and heavy metal content was used for a semiarid region. The entropy weighted index was used to assess the groundwater’s suitability for drinking and irrigation purposes. Thus, groundwater from 19 sampling sites was used for analyses of physicochemical properties (electrical conductivity—EC, pH, K+, Ca2+, Na+, SO42−, Cl−, HCO3−, TDS, NO3−, F−, biochemical oxygen demand—BOD, dissolved oxygen—DO, and chemical oxygen demand—COD) and heavy metal content (As, Ca, Sb, Se, Zn, Cu, Ba, Mn, and Cr). To evaluate the overall pollution status in the region, heavy metal indices such as the modified heavy metal pollution index (m-HPI), heavy metal evaluation index (HEI), Nemerow index (NeI), and ecological risks of heavy metals (ERI) were calculated and compared. The results showed that Cd concentration plays a significant role in negatively affecting the groundwater quality. Thus, three wells were classified as poor water quality and not acceptable for drinking water supply. The maximum concentration of heavy metals such as Cd, Se, and Sb was higher than permissible limits by the World Health Organization (WHO) standards. However, all wells except one were suitable for agricultural purposes. The advantage of the innovative entropy weighted groundwater quality index for both physicochemical and heavy metal content, is that it permits objectivity when selecting the weights and reduces the error that may be caused by subjectivity. Thus, the new index can be used by groundwater managers and policymakers to better decide the water’s suitability for consumption.

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Investigating the effects of heavy metals in the waste leachate on the groundwater quality near the landfill (case study: Landfill of Saravan, Rasht)

Journal of Fundamental and Applied Sciences ◽

10.4314/jfas.v9i1s.707 ◽

2017 ◽

Vol 9 (1S) ◽

pp. 484 ◽

Cited By ~ 1

Author(s):

F Geravand ◽

M Momenpour ◽

M Derakhshan Houreh ◽

S Aghileh Hejazi Kamsari

Keyword(s):

Heavy Metals ◽

Groundwater Quality ◽

Waste Leachate

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HEAVY METALS IN STREAM SEDIMENTS AFFECTED BY A LANDFILL AND ASSOCIATED IMPACT ON GROUNDWATER QUALITY

Bulletin of the Geological Society of Greece ◽

10.12681/bgsg.11671 ◽

2017 ◽

Vol 43 (5) ◽

pp. 2635 ◽

Cited By ~ 1

Author(s):

E. Koutsopoulou ◽

P. Tsolis-Katagas ◽

D. Papoulis

Keyword(s):

Heavy Metals ◽

Environmental Impact ◽

Groundwater Quality ◽

Stream Sediments ◽

Soil Samples ◽

Solid Wastes ◽

Sanitary Landfill ◽

Chemical Analyses ◽

Municipal Solid Wastes ◽

Run Off

Sanitary landfill facilities are essential to modern societies as repositories for municipal solid wastes. However, they always entrain a certain risk of environmental impact. For this reason monitoring is essential to their operation. In the present work, the environmental impact of such a landfill is studied. Soil samples were collected in and around the landfill and their mineralogy was studied. Top layers of stream sediments were collected to examine possible dispersion of pollutants in the environment. Chemical analyses showed enrichment in As, Cu, Zn, and Pb in the stream sediments compared to uncontaminated samples. The presence of anions such as chloride, sulphate and phosphate adsorbed on clay minerals suggest the interaction of stream sediments with run-off water from the landfill. The groundwater near the landfill site was characterised as not potable and not suitable for irrigation purposes, because some parameters such as NO3 - and Cl- were close or exceeded the permissible limits given by EE, EPA and WHO.

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Spatial Variations in Groundwater Quality Around Dumpsite in Igando

Journal of Environmental Science and Natural Resources ◽

10.3329/jesnr.v6i1.22063 ◽

2015 ◽

Vol 6 (1) ◽

pp. 179-186

Author(s):

Akoteyon ◽

S Isaiah

Keyword(s):

Heavy Metals ◽

Water Quality ◽

Drinking Water ◽

Groundwater Quality ◽

Anthropogenic Activities ◽

Dry Season ◽

Spatial Variations ◽

T Test ◽

Drinking Water Quality ◽

Wet Season

Water samples collected from fifteen hand dug wells in November (dry season), 2011 and July (Wet season), 2012 using random sampling technique. In situ parameters were measured for pH, electrical conductivity, total dissolved solids using portable meters. Heavy metals were analyzed for; Fe, Cu, Zn, Cd, Pb, and Cr using Atomic Absorption Spectrophotometer (AAS). The study aimed at examining the spatial variations in groundwater quality around dumpsite in Igando using paired sample T-test statistical technique. The result shows that the measured pH values were below the minimum WHO standard for drinking water quality in wet and dry seasons in about73.3% and 26.7% respectively. Also, approximately, 13.3% of EC, and 6.7% exceeded the prescribed standard limit of WHO in dry and wet seasons respectively. Concentration of Fe exceeded drinking water quality in all the sampling locations during wet season and only about 46.7% in dry season. Pb, Zn, and Cu exceeded WHO limit in about 86.7%, 80%, and 26.7% respectively in dry season. Concentration of Pb, Cd , Cu and Cr were under detection limit in all the locations except at locations G2 for Cu in wet season. The paired samples statistics and correlation revealed that the mean values of all the parameters were higher in dry season with the exception of Fe. No significant correlations exist among the paramet er for both seasons at p<0.05. The paired T-test show significant seasonal variations among four heavy metals including Fe, Cd, Pb and Zn.The study concluded that, samples in dry season are of low quality compared to wet. The study recommends public enlightenment on solid waste disposal, controlled anthropogenic activities, and treatment /recycling of waste to prevent heavy metal from leaching unto the sub-surface.DOI: http://dx.doi.org/10.3329/jesnr.v6i1.22063 J. Environ. Sci. & Natural Resources, 6(1): 179-186 2013

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Comprehensive assessment of groundwater quality using heavy metal pollution indices and geospatial technique: A case study from Wanaparthy watershed of upper Krishna River basin, Telangana, India.

10.21203/rs.3.rs-591235/v1 ◽

2021 ◽

Author(s):

Suantak Paolalsiam Vaiphei ◽

Rama Mohan Kurakalva

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Groundwater Quality ◽

River Basin ◽

Metal Pollution ◽

Heavy Metal Pollution ◽

Pollution Indices ◽

Runoff Water ◽

Water Interaction ◽

Guideline Values

Abstract The present study is to characterize groundwater quality using heavy metal pollution indices and geospatial variations. A total of 58 samples from hand pump/submersible bore wells were collected from the Wanaparthy watershed of the upper Krishna River basin according to the grid size (5*6 km 2 ). The heavy metals concentration in groundwater samples are found in the order of Zn(38.67%)> B(32.67%)> Ba(13.59%)> As(8.49%)> Hg(3.71%)> Cr(1.28%)> Ni(0.52%)> Cd(0.47%). Among these heavy metals, arsenic (22.4%) and mercury (5.1%) were found above the permissible limits of WHO drinking water guideline values. A positive correlation between pH versus B/Ba/Hg, TH versus EC/TDS, and B versus Ba indicates the presence of metals due to chemical reaction (rock-water interaction). Arsenic correlation with EC/TDS/TH indicates artificial intervention. Drainage network analysis enumerates high concentration of parameters at near or joining to upper order of drainage system, which might be due to input of runoff water (interaction of variable rocks composition) and later stage infiltration to subsurface and reached to an aquifer. Heavy metal pollution index (HPI) showed 86.2% of samples are in the category of low class, whereas 12.1% of samples fall within medium class. According to metal index (MI) classification, 12.1% samples are in very pure, 24.14% samples are pure, while the remaining 63.8% samples are in the slightly to strongly affect category. This study suggested the main source of heavy metals in groundwater might be from the dominant granitoid rocks because the area is mostly devoid of industrialization.

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SLUDGE EFFECT ON GROUNDWATER QUALITY

Environment Technology Resources Proceedings of the International Scientific and Practical Conference ◽

10.17770/etr2003vol1.1988 ◽

2006 ◽

Vol 1 ◽

pp. 85

Author(s):

A. Gontaszewska ◽

A. Kraiński

Keyword(s):

Heavy Metals ◽

Drinking Water ◽

Groundwater Quality ◽

Unsaturated Zone ◽

Permeability Coefficient ◽

Small Area ◽

Sewage Treatment ◽

Sewage Treatment Plant ◽

Treatment Plant ◽

Effective Protection

The influence of sludge on the groundwater’s quality has been shown on the bases of the agricultural exploitation of the sludge from a sewage-treatment plant. Little thickness of unsaturated zone (8.8 m) is not effective protection against the infiltration of the pollution from the surface. Unsaturated zone consist of sand of permeability coefficient k=0,68 m/h. The time of the vertical infiltration into the aquifer has been estimated at t=14,4 days. The investigations carried out during fertilization with the sludge have revealed an undoubted increase in the concentration of some ions as well as the increase in pH of the groundwater. The increase in the amount of some ions (e.g. N-NO3, SO4, Zn) as well as detergents indicates the possibility (as function of time) of reaching higher values than the ones permissible for drinking water. The phenomenon of the increase in the concentration of the particular ions will be accelerated after depletion of sorption of the soil in the unsaturated zone. The time can be estimated for not more than several years, taking into account a small area of the fertilized fields and high contents of “pollution” in the sludge (the total of the heavy metals reaches up to 1,5 g/kg)

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