scholarly journals Spatial and temporal variation of dissolved heavy metals in the Lijiang River, China: implication of rainstorm on drinking water quality

2021 ◽  
Author(s):  
Liming Deng ◽  
Asfandyar Shahab ◽  
He Xiao ◽  
Jieyue Li ◽  
Saeed Rad ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Drinking Water ◽  
Temporal Variation ◽  
Drinking Water Quality ◽  
Spatial And Temporal Variation ◽  
Lijiang River ◽  
Dissolved Heavy Metals

scholarly journals Spatial and temporal variation of dissolved heavy metals in the Lijiang River China: Implication of rainstorm on drinking water quality

2021 ◽  
Author(s):  
Liming Deng ◽  
Asfandyar Shahab ◽  
He Xiao ◽  
Jieyue Li ◽  
Saeed Rad ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Drinking Water ◽  
Health Risk ◽  
Temporal Variation ◽  
High Flow ◽  
Anthropogenic Sources ◽  
Spatial And Temporal Variation ◽  
Lijiang River ◽  
Dissolved Heavy Metals

Abstract Lijiang River is an essential drinking water source and natural scenery in the Guilin City. For the first time, implications of rainstorm were taken into consideration by investigating spatial and temporal variation of dissolved heavy metals (HMs) in the Lijiang River water. A total of 68 water samples were collected during low flow (normal) season and high flow (rainstorm) season from 34 sampling sites. Dissolved HMs including Cr, Mn, Co, Cu, Zn, As, Cd, Sb, and Pb were found to meet the respective drinking water standards, while higher concentration was observed after the rainstorm season, except for Cr. Multivariate statistical analysis showed Co, Cu, Cr, Zn, Sb, and Pb in normal season are mainly controlled by anthropogenic sources. Furthermore, higher concentration of Mn, Cu, Cd, Pb, Co and Zn during the high flow season is attributed to rainstorm. The water quality index (WQI) showed good grades, and comparatively lower in rainstorm season. The results of health risk assessment revealed that HMs in Lijiang River pose limited health risk, however, As poses potential health risk during rainstorm season. It is suggested to adopt preventive measures in mining activities and industrial waste-water discharge at the river’s upstream and downstream.

Pollution retention capabilities of roadside soils

1999 ◽  
Vol 39 (2) ◽  
pp. 201-208 ◽  
Author(s):  
C. Dierkes ◽  
W. F. Geiger
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Drinking Water ◽  
Groundwater Recharge ◽  
Drinking Water Quality ◽  
Traffic Density ◽  
Roadside Soils ◽  
Highway Runoff ◽  
Lead And Cadmium ◽  
Lead Zinc

Runoff from highways contains significant loads of heavy metals and hydrocarbons. According to German regulations, it should be infiltrated over embankments to support groundwater-recharge. To investigate the decontaminating effect of greened embankments, soil-monoliths from highways with high traffic densities were taken. Soils were analyzed to characterize the contamination in relation to distance and depth for lead, zinc, copper, cadmium, PAH and MOTH. Lysimeters were charged in the field and laboratory with highway runoff to study the effluents under defined conditions. Concentrations of pollutants in roadside soils depend on the age of embankments and traffic density. Highest concentrations were found in the upper 5 cm of the soil and within a distance of up to two metres from the street. Concentrations of most pollutants decreased rapidly with depth and distance. Lead and cadmium could not be detected in lysimeter effluent. Zinc and copper were found in concentrations that did not exceed drinking water quality limits.

scholarly journals Spatial Variations in Groundwater Quality Around Dumpsite in Igando

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

scholarly journals Drinking water quality and risk for human health in Pelengana commune, Segou, Mali

2019 ◽  
Vol 17 (4) ◽  
pp. 609-621
Author(s):  
Amadou Toure ◽  
Duan Wenbiao ◽  
Zakaria Keita ◽  
Abdramane Dembele ◽  
Elsamoal Elzak Abdalla Elzaki
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Drinking Water ◽  
Water Samples ◽  
Well Being ◽  
The United States ◽  
Total Coliform ◽  
Water Sources ◽  
Drinking Water Quality ◽  
World Health

Abstract Water is an indispensable commodity for the survival of all living beings and for their well-being. The objective of this work is to evaluate the level of pollution of different drinking water sources consumed and its link with health in Pelengana commune, Mali. Samples of water were taken from various sources, namely, hand pumps, boreholes, dug wells, and shallow wells for physical, chemical, heavy metals, and bacteriological analyses, using American Public Health Association (APHA) Standard Techniques. Results revealed that the nitrate-nitrogen (NO3−N) values of the water samples from the different water sources had concentrations exceeding the United States Environmental Protection Agency's (US-EPA) regulation of 10 mg/L, as well as World Health Organization Guideline for Drinking Water Quality (WHO GDWQ) (11 mg/L). The same applies to heavy metals such as Cd, Pb, and Fe, in which, concentrations exceed their allowable limits in certain locations. Moreover, apart from water samples from some different boreholes, total coliform, and Escherichia coli have been detected in all selected water sources, which indicates fecal contamination. In all, there is a pressing need to stop the consumption of drinking water from contaminated sources and to effect appropriate treatment.

scholarly journals Tannery Wastewater affects the Drinking Water Quality and Heavy Metals in the Palar River Water Pollution in Vellore District Tamil Nadu

2021 ◽  
Vol 9 (4) ◽  
Author(s):  
A Xavier Susairaj
Keyword(s):  
Water Pollution ◽  
Heavy Metals ◽  
Water Quality ◽  
Drinking Water ◽  
Tamil Nadu ◽  
Sampling Technique ◽  
Drinking Water Quality ◽  
Primary Data ◽  
The People

A large number of chemicals are used in the tanneries to convert the rawhide into finished leather. The chemicals used by the tanneries are ends in wastewater. This wastewater is dumped into nearby rivers and canals that create water pollution heavy metals in the water. The aim of this process is to access the chemicals used in the tannery industry post tanning process and to evaluate the drinking water quality of the wastewater released by the tanneries in the Palar river basin in Vellore district Tamil Nadu. To analyze the perception of the people in the study area affected by health due to wastewater from the tanneries. This study was performed as a cases study of the current drinking water sources used by households and how they perceive the quality of water. The second objective is to analyze the relationship between water quality and health hazards among households in the Vellore district. Primary data was collected from the respondents with the help of a questionnaire, total sample size of the respondent was 500, multistage random sampling technique was used to collect the data with the help of questioner method, the descriptive and statistical tools were used to analyse the data with SPSS and R statistical packages. The result shows that the people in the river basing suggested controlling the wastewater for the tanneries, and they demanded compensation from the tanneries. Finally, to suggest policy measures to control the water pollution in the study area.

scholarly journals Researches Regarding the Use of Silver and Screen Printed Electrodes to the Improvement of the Drinking Water Quality from Rural Areas

1970 ◽  
Vol 66 (1) ◽  
Author(s):  
Alexandru CRISTEA
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Drinking Water ◽  
Thin Layer ◽  
Rural Areas ◽  
Antibacterial Properties ◽  
Total Content ◽  
Drinking Water Quality ◽  
Water Drinking ◽  
Water Tanks

Based on the antibacterial properties of the silver, some pieces of water drinking installation could be covered by thin layer of silver to enhance the drinking water quality. In the water tanks could be introduces activated pieces coverer by layers of silver such as: screens, grids, adjustable cylindrical rings, taps etc. The obtained waters were characterized by detecting by electrochemical way the heavy metals content and the total content of the microbial charge.

scholarly journals Evaluation of Some Selected Heavy Metals in Groundwater from Samaru, North-western Nigeria

2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Auwal Mohammed ◽  
Saheed Garba ◽  
Sule A Abdullahi ◽  
Hasan U Mohammed
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Drinking Water ◽  
Chemical Properties ◽  
Drinking Water Quality ◽  
World Health ◽  
Prevention Measures ◽  
Acceptable Limit ◽  
Health Organization ◽  
North Western

The chemical properties of selected heavy metals in groundwater from selected locations in Samaru, Zaria were determined and compared with Nigerian standards.Water samples were collected and chemical properties were determined. The Chemical properties such as Lead (Pb), Zinc (Zn), Copper (Cu), Cobalt (Co), Iron (Fe) Cadmium (Cd), Manganese (Mn), and Nickel (Ni) were determined. The chemical properties were determined following the American Public Health Association (APHA) procedure. The Data were analyzed using the World Health Organization (WHO) and the Nigerian Standard of Drinking Water Quality (NSDWQ). The findings showed that Pb, Zn, Cu, Co in all the samples and Fe in samples B, D, F, and G` were within the acceptable limit. While Cd, Mn, and Ni in all the samples and Fe in samples A, C, E, and H were more than the acceptable limit as presented in Table 2. Therefore the results show that the Samaru Groundwater is not totally good for consumption since Cadmium (Cd), Manganese (Mn), and Nickel (Ni) were more than the acceptable limit. Moreover, it is recommended that urgent prevention measures should be put in place to prevent increased concentrations of Cd, Fe, Mn, and Ni as a result of anthropogenic activities.Keywords: Concentration, Drinking water quality, Groundwater, Heavy metals.

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