Previous chapters have discussed quantities of water recharging, flowing through, and discharging from the groundwater system and quantities of water stored in the system. Abstract the main purpose of this study is to identify the major factors affecting groundwater quality by means of multivariate statistical analysis of the physico. Factors influencing streambed hydraulic conductivity and. Various chemometric techniques were used to analyze the quality of groundwater data sets. Contaminants can impair water quality and affect water use. Groundwater quality comprises the physical, chemical, and biological qualities of ground water. Quality can vary greatly across an aquifer, through its profile and over time. It takes into account the mineral content of the water as well.
A contaminant is an undesirable substance in water that either. Water quality was determined at 11 selected water points representing both improved and unimproved sources. Spatial and vertical variability in groundwater geochemistry in the two aquifers provided insight into factors affecting the vulnerability of these aquifers and the studied psws to contamination. Natural and artificial factors affecting groundwater flow and transport in the vicinity of an lpg storage site were examined to understand the groundwater flow and transportregime around lpg storage caverns. Epa, l993a, 1994 to assess the groundwater quality impacts due to migration of wastes from surface waste sites.
In addition, complex interactions of multiple factors such as geology, mineral composition of an aquifer, weathering, waterrock interactions, topography, tidal effects, climate and anthropogenic activities are important determinants of groundwater quality 68. Thus, the study of groundwater quality is imperative 65, because poor quality water may have adverse effects on the users health. It fills spaces between particles of soil or between cracks in bedrock. Multivariate statistical analysis to identify the major. Groundwater quality and groundwater pollution uc davis. Groundwater characteristics quality and yield quality and yield are the primary measures used to make decisions about the potential use of groundwater although there are other factors that limit decisions such as the cost of drilling. Any particular use will have certain requirements for the physical, chemical or. Identifying major factors affecting groundwater change in the north.
Groundwater quality issues have been rising to great prominence within the. Evaluation of factors influencing the groundwater chemistry. The composition of surface water and groundwater is dependent on e. Pdf the safety of groundwater resources is a serious issue, particularly when these resources are the main source of water for drinking, irrigation. An important factor controlling the persistence of solvents in groundwater is the. This model simulates the fate and transport of contaminants after their release from the land disposal unit into the soil, downwards to the water table and subsequently through the saturated zone. Check out the pesticide education and assessment program.
Check out the pesticide education and assessment program web. Chemical and microbiological analyses of water from 230 wells and 35 springs in the valley and ridge physiographic province, sampled between 1993 and 2002, indicated that bedrock type carbonate or siliciclastic rock and land use were dominant factors influencing groundwater quality across a region extending from northwestern georgia to new jersey. Furthermore, in this research, the most influential factors affecting the quality of groundwater, will be analysed using the fuzzy method which will. Having quality groundwater means more than just having clean water. A complicating factor of water governance is that political and. Water moving over or under the land surface can undergo physical and chemical changes. Attuazione della direttiva 9883ce relativa alla qualita delle.
Fortyfour shallow groundwater samples were collected for chemical analysis. Pdf natural and anthropogenic factors affecting groundwater. Existing research has found ways to sample and measure k at specific sites and with laboratory tests. Sustainability of groundwater resourcescircular 1186. What are the key factors that influence water quality. Factors affecting the quality of bottled water journal. As and no 3 this is an alarming result, and they are the key factors impairing the water quality of the groundwater of serbia. The movement of groundwater underneath us is influenced by several factors. Previous chapters have discussed quantities of water recharging, flowing through, and discharging from the groundwater system and quantities of. Factors influencing the shallow groundwater quality in four.
Assessment of factors affecting the groundwater quality in. Factors influencing the shallow groundwater quality in. An effect of factors determining water quality in the water supply network in krakow is assessed. In the urban areas people were generally satisfied with the water services provided by the municipality because the water quality was. In these areas, groundwater is the obvious solution for public water supply needs. In this work, a geochemical netpath model was used to interpret the change of the groundwater quality along its flow path. Recharge in the current study was estimated using groundwater and sediment core data collected by the us geological surveys usgss national water quality assessment nawqa program, in collaboration with the ground water resources program gwrp. Groundwater pollution works differently from surface water pollution, although they have many sources in common, such as fertilizers, pesticides, and animal wastes. Generally of high quality, groundwater is being withdrawn mostly to supply drinking water and. Chapter 2 water quality this chapter was prepared by m. These layers can form laterally extensive aquifers, or conduits for groundwater movement, that are at predictable depths, and from which seemingly unlimited quantities of highquality groundwater can be pumped. Influences of natural and anthropogenic factors on surface. Many factors affect the quality of surface and groundwater.
The safety of groundwater resources is a serious issue, particularly when these resources are the main source of water for drinking, irrigation and industrial use in coastal areas. Natural and anthropogenic factors affecting the groundwater quality in serbia. Data collected over a fouryear research period included quality parameters of water taken from the water distribution system in the period between 1 january 2011 and 31 december 2014. The quality of groundwater is controlled by many factors, including pollution, but there are three main factors that contribute to groundwater quality. In this study, the hydrochemical characteristics of shallow groundwater were analyzed to get insight into the factors affecting groundwater quality in a typical agricultural dominated area of the north china plain.
Groundwater quality data were collected from 5,000 wells between 19882001 first sampling event by the u. Factors affecting the groundwater system around an. Unlike surface water, ground water does not typically flow toward a single. Effects of natural and human factors on groundwater quality of. A study of the groundwater quality of the principal aquifers of the united states conducted between 1991 and 2004, showed that 23% of domestic wells had contaminants at levels greater than humanhealth benchmarks. Sep 08, 2006 the elevated level of nitrate in groundwater is a serious problem in korean agricultural areas. In particular, the important factors for the groundwater quality in rural areas have been presented. Review of factors affecting microbial survival in groundwater david e. These changes may be caused by either natural factors or human activities. The study results showed that both natural and anthropogenic processes were the two major factors for the chemical compositions of groundwater. Groundwater quality can be affected by the composition and solubility of rock mate. Rose, college of marine science, university of south florida, 140 seventh ave south, st.
The present survey of the factors affecting the quality of groundwater suggests that. The crosscorrelation analysis results showed that the 11year monitoring data of groundwater head and seepage water into caverns were mainly controlled by rainfall and cavern operation. Groundwater chemistry of small tropical islands is influenced by many factors, such as recharge, weathering and seawater intrusion, among others, which interact with each other in a very complex way. Consequently, groundwater quality assessment is invariably directed towards factors which may lessen the suitability of pumped groundwater with respect to its potability and. Drinking water, groundwater quality, rural areas, water intakes, water supply systems citation information. The quality of water sold in bottles is the result of many factors, from its pristine quality, through the methods of its acquisition and treatment, to the conditions under which it is stored and. These layers can form laterally extensive aquifers, or conduits for groundwater movement, that are at predictable depths, and from which seemingly unlimited quantities of high quality groundwater can be pumped. The most common factors effecting ground water quality.
Petersburg, florida 33701, and department of fisheries and wildlife, natural resources building, michigan state university, east lansing, michigan 48824. This paper also shows the impact of the quality and quantity of available water resources on the exploitation of chosen small water intakes. To control and manage groundwater quality, the characterization of groundwater contamination and identification of the factors affecting the nitrate concentration of groundwater are significant. In this case where two wells are drilled, one of them exhibits a good condition but the other has. Of the freshwater which is not frozen, almost all is found below the surface as groundwater. Geological surveys national waterquality assessment project. Learn about the quality and availability of groundwater for drinking, where and why groundwater quality is degraded, and where groundwater quality is changing.
Journal of environmental quality abstract ground water. Factors affecting groundwater quality in the valley. Sep 22, 2017 in this study, the hydrochemical characteristics of shallow groundwater were analyzed to get insight into the factors affecting groundwater quality in a typical agricultural dominated area of the north china plain. The chemical characteristics of groundwater in the nurs were investigated to understand the factors affecting groundwater quality in the nandong karst underground river system in yunnan, china. Critical issues affecting groundwater quality governance. Water quality, which describes the chemical, physical and biological content of water, is influenced by a variety of factors including substances present in the air, soil and rocks, industrial activities, and runoff from urban areas.
Pdf natural and anthropogenic factors affecting the. Every day, millions of gallons of groundwater are pumped to supply drinking water for about 140 million people, almost onehalf of the nations population. Factors affecting groundwater chemistry the chemical composition of ground water varies because of many complex factors that change with depth and over geographic distances. The arsenic concentrations in most samples in banat 25. Many of them have been destroyed, but the remaining wetlands can still play an important role in preventing floods and promoting river flows. Natural and anthropogenic factors affecting the groundwater. Review of factors affecting microbial survival in groundwater. In this work, multivariate statistical analysis was used to. Groundwater quality can be affected by the composition and solubility of rock materials in the soil or aquifer, water temperature, partial pressure of carbon diox. The elevated level of nitrate in groundwater is a serious problem in korean agricultural areas. Read natural and anthropogenic factors affecting the groundwater quality in serbia, science of the total environment on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Aug 01, 2002 natural and artificial factors affecting groundwater flow and transport in the vicinity of an lpg storage site were examined to understand the groundwater flow and transportregime around lpg storage caverns.
The estimation and modeling of streambed hydraulic conductivity k is an emerging interest due to its connection to water quality, aquatic habitat, and groundwater recharge. The crosscorrelation analysis results showed that the 11year monitoring data of groundwater head and seepage water into caverns were mainly controlled by rainfall and cavern. Factors influencing groundwater quality semantic scholar. What affects the quality of surface and groundwater.
Influences of natural and anthropogenic factors on surface and groundwater quality in rural and urban areas. Apr 05, 2020 having quality groundwater means more than just having clean water. These require a lot of research work that can provide an indepth understanding of the current quality situation and of any factors influencing the groundwater chemistry, which is sadly lacking. Wolock us geological survey, 4 national center, reston, va 20192, united states.
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