scholarly journals Quality Status of Irrigation Water of Kaleshwaram Project Command Area of Nizamabad District in Telangana State

Author(s):  
V. Prasad ◽  
T. Anjaiah ◽  
K. Pavanchandrareddy ◽  
P. Laxminarayana ◽  
T. L. Neelima

The present study represents the quality of ground water from Kaleshwaram project command area of Nizamabad district of Telangana state, India during year 2019-2020. Total 72 ground water samples from bore wells were collected randomly from Nizamabad periodically in two seasons i.e. pre-monsoon season (May, 2019) and post-monsoon-season (January, 2020). The ground water samples were analyzed for quality parameters viz., pH, EC, cations, anions, boron. The Sodium Adsorption Ratio and Residual Sodium Carbonate were also calculated for these ground water samples. The results found that all ground water samples from Nizamabad district were neutral to alkaline in reaction and having pH 7.02 during pre-monsoon and 7.48 during post-monsoon season respectively. EC of these water were 1.23dSm-1 and 1.53dS m-1 during pre-monsoon and post-monsoon seasons respectively. Among 72 water samples as per salinity classification 2.8, 23.61, 69.44 and 4.17 per cent water samples during pre-monsoon and 0, 1.4, 90.30 and 8.33 per cent water samples during post-monsoon  were categorized in class C1, C2, C3 and C4, respectively. Among all the cations in ground water Calcium was dominant. Whereas anions CO3-2 + HCO3- are dominant. The boron concentration of ground water was ranged from 0.48 to 0.67 ppm during pre and post-monsoon, respectively. According to sodicity classes, i.e. SAR and RSC of ground waters were 100 and 47.22 per cent during pre-monsoon, 100 and 26.40 per cent during post-monsoon are suitable for irrigation. The positive significant correlation was observed between EC, cations of ground water.

2014 ◽  
Vol 2 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Rajib Kumar Shrestha ◽  
Dipak Regmi ◽  
Bhim P. Kafle

Ground water of southern part of Nepal, also known as Terai region where population density is relatively very high, has been contaminated with poisonous element Arsenic. This study has been carried out to determine variability of the level of arsenic contamination in groundwater with seasons of Pathkhauli village of Devgaun VDC and Mahuwa village of Manari VDC in Nawalparasi district, the western Terai district. Hydride Generation Atomic Absorption Spectrophotometer (HG-AAS) and UV-visible Spectrophotometry was used for analysis. Total 55 groundwater samples in post-monsoon season and 45 groundwater samples in pre-monsoon season were collected. The level of arsenic contamination in groundwater was found above the Nepal interim standard of 50 ppb. Of the total 42 water samples from each pre- and post- monsoon seasons analyzed, 28 water samples (67.67%) showed higher As-concentration in pre-monsoon season. DOI: http://dx.doi.org/10.3126/ijasbt.v2i1.9477   Int J Appl Sci Biotechnol, Vol 2(1): 59-63 


Water Quality Index (WQI) is a widely used technique in defining the quality of groundwater and finding whether it is advisable for human use. It is utmost necessary steps to understand the physical and chemical parameters defining the water quality for particular period and location using WQI calculation as it gives information in a single value. WQI has been calculated in twenty ground water samples collected from selected sampling stations at Madurai in the pre-monsoon, monsoon and post monsoon seasons. The water quality index values suggested that almost all the ground water samples were above 150, which indicated that they were unfit for drinking and one sample from Vilangudi had WQI less than 100 which indicated the water as poor category for drinking but could be used for irrigation purposes. The groundwater quality is also defined to be little better during post monsoon season in all the samples than during pre-monsoon and monsoon season.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
K. P. Dandge ◽  
S. S. Patil

AbstractWater is a vital and widely spread component required for sustaining the life. Groundwater is vastly valuable source and it is extremely beneficial for the human beings. But, the toxic elements release from sources such as industries, landfills as well as non-point causes of pollution such as pesticides and fertilizer from the past year showed high levels of pollution in ground water, hence this is very crucial for evaluating the water quality not only for it’s existing usage, but also a its capacity to develop as a sustainable source of water for human utilization. In rural areas of India, Groundwater is a significant water-drinking source. In Bhokardan area of Jalna District, quality of ground water is great significance, because it is a key alternative source of domestic supply along with drinking water and peoples residing there facing several water quality issues for drinking purpose. In this current research work, an endeavor has been developed to investigate the quality of groundwater as well as spatial distribution by utilizing Remote Sensing along with GIS approaches. Water quality analysis was performed for developing the quality index of water, by utilizing 12 quality parameters of water like Alkalinity, pH, Electrical Conductivity, Fluoride, Chloride, Nitrate, Sulphate, Potassium, Total Hardness, E. coli, Turbidity and Total Dissolved Solids measured at 35 different selected locations in this research work. Spatial distribution map showed that each region of research area falls under category of “Poor water” and “Very poor water” except some sites at Northern regions of the area which falls under “Good water” category during pre-monsoon, whereas most of the sites from Northern and Southern part of the region shifted category from poor to good water along with very poor to poor water during post-monsoon season. The quality index data of water of the current research disclosed that, the high WQI “Water Quality Index” values in the samples of groundwater were principally due to the occurrence of higher values of turbidity and E. Coli. The higher level of water quality parameters like TH, EC, alkalinity, potassium, TDS, chloride and fluoride were also accountable for high values of WQI in this research work. None of the location falls under excellent quality for water during pre-monsoon as well as post-monsoon season.


Author(s):  
Syed Hilal Farooq ◽  
Amrit Kumar Mishra ◽  
Sandip Kumar Muhakud ◽  
Prasannajit Acharya ◽  
Pradipta Ranjan Muduli ◽  
...  

A complete halt on all anthropogenic activities and human movement due to COVID-19 lockdown has provided a great opportunity to assess the impact of human activities on coastal marine ecosystems. The current study assessed the concentration of the metals in water samples of the largest brackish water lagoon of Asia; the Chilika lagoon in the state of Odisha, India between pre-COVID-19 and post-COVID-19 lockdown scenarios. Monthly water samples (n=30 stations) from 0.3 m depth were collected from three sectors of the lagoon seasonally; pre-monsoon, monsoon, and post-monsoon. In addition to various physical parameters [pH, salinity, alkalinity, (DO) dissolved oxygen, (TDS) total dissolved solids, and (EC) electrical conductivity] the collected water samples were analysed for 18 trace metals (Al, As, Ba, Be, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Sr, Th, Tl, U, V). Most of the physical parameters showed a significant variation between pre-and post-COVID-19 scenarios, except for pH and DO. The concentration of five metals (Be, Cd, Co, Ni, and Pb) remained below detection limits in all water samples. The impact of COVID-19 lockdown on the concentration of the metal in the water samples was noticed along with the three sectors of the lagoon. However, eight metals (Al, As, Cr, Fe, Mn, Th, U, and V) were significantly different between the COVID-19 scenarios and the remaining five metals were not statistically significant. The mean concentration of Al, As, Fe, Th, and V were higher in the pre-COVID-19 scenarios, whereas only Cr and Mn were higher in the post-COVID-19 scenarios. The mean concentration of U was similar among both COVID-19 scenarios, even though there were seasonal and sectoral differences. The seasonal influence of riverine influx was more evident on metal concentration during the monsoon season, whereas the difference between sectors was more prominent during the post-monsoon season. An increased number of correlations between physical parameters and metal concentration were observed in the post-monsoon season and post-COVID-19 scenario. This study provides evidence that the imposition of COVID-19 lockdown reduced metal influx in the water column and improved the water quality of the Chilika lagoon. Our results can be used as baseline for metal concentration in surface waters of the lagoon.


2011 ◽  
Vol 11 (5) ◽  
pp. 545-559
Author(s):  
S. M. Helal Uddin ◽  
M. G. Mostafa ◽  
A. B. M. H. Haque

A study was conducted to evaluate the hydrochemical processes controlling the water quality variations and to determine the water type of groundwater in Rajshahi City, Bangladesh, for drinking purposes. A total of 120 shallow and deep tubewell water samples were collected in pre- and post-monsoon seasons during the year 2008–2009 and analyzed for various physico-chemical parameters. The results of the analyses show that water samples were slightly alkaline to neutral pH. The average concentrations of Pb in all samples for the post-monsoon season were above the WHO's guideline for drinking water. For both seasons, arsenic levels exceeded the drinking water standard in 25% of groundwater samples and lead (Pb) levels exceeded in about 60% samples which contained elevated levels (>0.01 mg/L). The major cationic and anionic orders of dominance were unusual, being Ca2+ > Mg2+ > Na+ > K2 > Fe3+ > Pb2+ > Zn2+ > Cu2+ > As (total) > Cd2+ and HCO3− > Cl−> SO42− > NO3−, respectively. The study reveals that the water type of the groundwater was calcium bicarbonate (Ca-HCO3). Thus overall results suggest that groundwater quality of the study area was not suitable for drinking purposes without treatment especially for Pb and As.


2019 ◽  
Vol 7 (1) ◽  
pp. 169-178
Author(s):  
Ravinder Kumar ◽  
Maansi ◽  
Meenu Wats

Freshwater molluscs are the integral part of every aquatic ecosystem and help not only in the ecosystem’s functioning but also enable the ecologists to judge the health of their abode. These shelled animals are used as the best biomonitoring tools worldwide. Gradually declining water quality of freshwater bodies owing to multiple factors, their biodiversity is also facing threat. Majority of the freshwater bodies near human vicinities are facing anthropogenic interventions, habitat destructions and overexploitation and the same is being reflected by the elimination of sensitive molluscan species and survival as well as abundance of other tolerant ones. The current study has been undertaken to understand the Malacofauna biodiversity in Morni hills, Panchkula, Haryana. During the study, total 359 gastropods both aquatic and land snails were collected. Pre-monsoon season witnessed greater molluscan abundance, 8.46 times, than post-monsoon. The molluscan biodiversity, 7 species, 7 Genera and 5 families, namely Filopaludina bengalensis, Melanoides tuberculata, Radix luteola, Gyraulus ladacensis, Indoplanorbis exustus, Ariophanta interrupta and Macrochlamys indica.Shannon-Weiner Index (H) and Simpson Diversity Index (D) for both seasons indicated higher species diversity during post monsoon season. Melanoides tuberculata was found to be dominant during pre-monsoon while Filopaludina bengalensis during post monsoon season.


Agropedology ◽  
2019 ◽  
Vol 28 (2) ◽  
Author(s):  
Sanjay Singh ◽  

A study was conducted to evaluate the ground water quality of 40 samples collected from the hand-pumps of different villages during pre and post monsoon period. The water quality parameters were analyzed to ascertain the potability of drinking water against recommended limits of WHO and BIS. The electrical conductivity for all the samples were above the WHO standards, while the bicarbonates in 81 per cent samples were found to be above critical level. The maximum TDS (680-748 mgL-1) value was recorded in Dholi village during post monsoon period. The bicarbonate concentration was found in all the samples and it was maximum in Sakara village while carbonates content was absent in these samples.


2021 ◽  
Author(s):  
PRIJU C P ◽  
C M Sushanth ◽  
Vipin Balan P

Abstract Freshwater zones in the shallow aquifers extending from Ernakulam to Chettuva region, central Kerala coast has been studied using electrical resistivity methods. Seasonal salinity patterns and hydrochemistry in the shallow aquifers in the region also has also been studied. The coastal zone is made up of shore parallel ridges and runnels formed by alternate marine trangressive and regressive events. Vertical Electrical Sounding (VES) was carried out at 33 locations in the area extending from the beach to approximately up to 10 km from the shoreline. The subsurface lithology and freshwater layers in the aquifer system was delineated from the resistivity model. The saline zones are intervening with fresh water zones at different depths along the coast. The salinity in the aquifer system seems to be either due to brackish water ingress or paleo-salinity. 107 dug wells from the study area were also monitored during 2008–2010 period in pre-monsoon, monsoon and post-monsoon seasons. The water samples collected in the post-monsoon 2008 was analysed for the physico-chemical parameters viz., pH, temperature, EC, total alkalinity, salinity, turbidity, TDS, chloride (Cl−), total hardness, Ca2+, Mg2+, Na+, K+, CO32−, HCO3−, Cl−, SO42−, NO3−N and Fe2+. The pH of the water samples varied from 4.47–8.32 in the post-monsoon season and 3.5–9.21 in the pre-monsoon and 5.55–9.05 in the monsoon season. The EC values ranges from 58-4500 µ mhos/cm in the post-monsoon, 59-3753 µ mhos/cm in the pre-monsoon and 51-2637 µ mhos/cm in the monsoon season. TDS values ranges from 35-2700 mg/L in the post-monsoon, 38-21190 mg/L in the pre-monsoon and 32-1668 mg/L in the monsoon season. Hill-Piper diagram indicated Ca-HCO3 is the dominant water type followed by Na-Cl type and Na-HCO3 type. Other water types are Ca-Cl, Mg-HCO3, Mg-Cl, Ca-SO4 and MgSO4.


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