Fifty sampling stations have been identified and water samples were collected from June to May 2008, to know the groundwater quality of Greater Visakhapatnam city using Water Quality Index. The samples were analyzed for the physico-chemical parameters like Temperature, pH, Conductivity, Total dissolved solids, Dissolved Oxygen, Hardness, Calcium, Magnesium, Alkalinity, Chloride and Nitrate. The...

‎suppose $n$ is a fixed positive integer‎. ‎we introduce the relative n-th non-commuting graph $gamma^{n} _{h,g}$‎, ‎associated to the non-abelian subgroup $h$ of group $g$‎. ‎the vertex set is $gsetminus c^n_{h,g}$ in which $c^n_{h,g} = {xin g‎ : ‎[x,y^{n}]=1 mbox{~and~} [x^{n},y]=1mbox{~for~all~} yin h}$‎. ‎moreover‎, ‎${x,y}$ is an edge if $x$ or $y$ belong to $h$ and $xy^{n}eq y^{n}x$ or $x...

This study investigated the effect of refinery effluents on different sources of potable water supply in two areas of Niger Delta contiguous host and impacted on communities of Delta State, Nigeria (surface water, shallow well water and borehole water) in Ekpan, its adjoining communities and creeks. Since open and underground water bodies are regarded as final recipient of most environmental po...

Water pollution is any physical or chemical change in water quality, directly indirectly, adversely affects humans makes unsuitable for the required uses. This research concerned with study of and properties city Nasiriya-Iraq quantity by applying arithmetic weight index. The was based on concentrations positive ions (Potassium , Sodium Calcium ) negative (Sulfate Chloride acidity (PH), Total D...

Abstract Mining activities generate much wastes which degenerate into various geochemical components and affect the natural composition of surface water resources. They cause Acid Mine Drainage (AMDs) influence hydrochemical evolution hydrogeological systems. This study employed parameters to characterize evaluate effects mine discharges on irrigation in mining district Enyigba, SE Nigeria. Twe...

A study was conducted to assess the present status of ground water in Pali town. The city is known as an industrial hub especially for textile industry. Ten sampling locations were selected at random and samples from tube wells around For this purpose, these analysed major physical chemical quality parameters such pH, electrical conductivity (EC), total dissolved solids (TDS), Alkalinity, Total...

Over the last few decades the water quality is deteriorating in arid and semi-arid regions. Phulera tehsil is facing the problem of groundwater pollution. In the present investigation, determination of fluoride (F) in drinking water was conducted in (200 samples of) 40 villages of Phulera fehsil having fluoride content more than permissible limits (> 1.5 mg l(-1)). After the pilot survey sympto...

The present paper sought to assess some physico-chemical parameters above permissible guidelines of irrigation water standard, the study was carried during establishment Ecotourism Park. field survey design used and it accompanied by laboratory tests analyze levels in both seasons (dry season wet seasons) for bodies as well groundwater. physical chemical analysed were Sodium Adsorption Ratio (S...