scholarly journals Potential health concerns due to elevated nitrate concentrations in groundwater of villages of Vadodara and Chhota Udaipur districts of Gujarat, India

2021 ◽  
Author(s):  
Smruti V. Patel ◽  
Nitasha Khatri ◽  
Paresh Chavda ◽  
Ashutosh K. Jha
Keyword(s):  
Groundwater Quality ◽  
Graphical Representation ◽  
Monsoon Season ◽  
Physicochemical Characteristics ◽  
Potential Health ◽  
Correlation And Regression Analysis ◽  
Post Monsoon ◽  
Analytical Results ◽  
Post Monsoon Season

Abstract In an attempt to assess the groundwater quality of Vadodara and Chhota Udaipur districts and check its suitability for drinking purposes, a total of 162 samples (50 samples during pre-monsoon season and 54 samples during post-monsoon season from Vadodara district and 29 samples during both pre- and post-monsoon seasons from Chhota Udaipur district) were collected from 63 villages of both the districts for pre-monsoon and post-monsoon seasons during 2016–17. The analysis was carried out for physicochemical characteristics and the analytical results have been interpreted by graphical representation, correlation and regression analysis and water quality index so that the quality of groundwater can be easily understood. The analytical results were then compared with the Indian Standards Drinking Water-Specification (Second Revision). From this study, it is concluded that the overall groundwater quality of the region is comparatively good; however, elevated nitrate levels resulted in many of the samples having raised concern and the necessity to make all possible efforts to improve the quality of groundwater wherever deteriorated.

scholarly journals Assessment of groundwater quality by using statistical analysis from kopargaon taluka, Ahmednagar, India

2016 ◽  
Vol 4 (2) ◽  
pp. 15
Author(s):  
Deshpande A.V. ◽  
Patil S.N.
Keyword(s):  
Statistical Analysis ◽  
Correlation Analysis ◽  
Groundwater Quality ◽  
Negative Correlation ◽  
Monsoon Season ◽  
Pearson Correlation ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Different Sources ◽  
Descriptive Statistical Analysis

The study was conducted to evaluate the groundwater quality along the Kopargaon taluka. Thirty six ground water samples were collected from different sources in pre monsoon and post monsoon season, during the year 2013. The descriptive statistical analysis was carried out besides Pearson correlation. Correlation analysis revealed that very strong correlation exists between HCO3and Na(0.961), HCO3and Mg++ (0.935), HCO3and EC (0.927). Where highly negative correlation is observed between Na and pH (-0.537) during pre-monsoon season. During post monsoon season highly positive correlation is observed between Cl- and Ca++ (0.973), Ca and EC (0.967), Cl- and EC (0.966), SO4 and EC (0.948). Where, highly negative correlation is observed between Ca and pH (-0.533).

Evaluation of groundwater quality and its suitability for drinking purpose in Rajshahi City, Bangladesh

2011 ◽  
Vol 11 (5) ◽  
pp. 545-559
Author(s):  
S. M. Helal Uddin ◽  
M. G. Mostafa ◽  
A. B. M. H. Haque
Keyword(s):  
Drinking Water ◽  
Groundwater Quality ◽  
Water Samples ◽  
Monsoon Season ◽  
Water Type ◽  
Post Monsoon ◽  
Drinking Water Standard ◽  
Drinking Purposes ◽  
Post Monsoon Season ◽  
Rajshahi City

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.

scholarly journals MOLLUSCAN BIODIVERSITY AND ITS SEASONAL FLUCTUATIONS IN TEEKAR TAAL, HARYANA, INDIA

2019 ◽  
Vol 7 (1) ◽  
pp. 169-178
Author(s):  
Ravinder Kumar ◽  
Maansi ◽  
Meenu Wats
Keyword(s):  
Diversity Index ◽  
Monsoon Season ◽  
Land Snails ◽  
Freshwater Molluscs ◽  
Melanoides Tuberculata ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Freshwater Bodies ◽  
Indoplanorbis Exustus

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.

scholarly journals Seasonal Variation in Groundwater Quality of Yavatmal District, India

2011 ◽  
Vol 8 (2) ◽  
pp. 870-874
Author(s):  
P. N. Rajankar ◽  
D. H. Tambekar ◽  
S. R. Wate
Keyword(s):  
Water Quality ◽  
Seasonal Variation ◽  
Groundwater Quality ◽  
Monsoon Season ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Percolation Process ◽  
Post Monsoon Season ◽  
Different Parts

Seventy samples of groundwater were collected from different parts of Yavatmal District, India and analyzed. The results of this analysis were compared with the WHO water quality standards. The groundwater quality in this district showed slightly seasonal variation while the data computed in Water Quality Index (WQI) calculator. The WQI was varied from 73.0 to 80.2 during pre monsoon and 68.7 to 72.4 in post monsoon season, which showed slightly seasonal variation. This may be attributed to surface runoff and percolation process. The results showed that, the water in these areas are bacteriologically not safe and need treatment before it is used for drinking.

scholarly journals Pre-monsoon and post-monsoon groundwater chemical analysis For Burdwan (West Bengal), India

MAUSAM ◽  
2021 ◽  
Vol 72 (4) ◽  
pp. 859-864
Author(s):  
PRAVAT RABI NASKAR ◽  
SHOBHIT KATIYAR ◽  
SOURISH BONDYOPADHYAY
Keyword(s):  
Water Quality ◽  
Pollution Control ◽  
Physicochemical Parameters ◽  
West Bengal ◽  
Monsoon Season ◽  
Control Board ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Central Pollution Control Board

This study has been carried out to find the groundwater quality of Burdwan district of West Bengal during pre-monsoon and post-monsoon. For this, the data of physicochemical parameters have been collected from Central Pollution Control Board (CPCB) website for the pre-monsoon and post-monsoon season for the year 2017. It is found that during the post-monsoon season, the water quality of all the stations falls in the category of excellent, and during the pre-monsoon season, the water quality of most of the stations is good.

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

2020 ◽  
pp. 34-42
Author(s):  
V. Prasad ◽  
T. Anjaiah ◽  
K. Pavanchandrareddy ◽  
P. Laxminarayana ◽  
T. L. Neelima
Keyword(s):  
Ground Water ◽  
Water Samples ◽  
Monsoon Season ◽  
Quality Parameters ◽  
Command Area ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Telangana State ◽  
Positive Significant Correlation

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.

Seasonal Variations of Small Wading Birds in the Pichavaram Mangrove Forest, India

2021 ◽  
Vol 16 (2) ◽  
pp. 399-407
Author(s):  
Rajendran Jagadheesan ◽  
Jeganathan Pandiyan
Keyword(s):  
Mangrove Forest ◽  
Monsoon Season ◽  
Population Characteristics ◽  
Wading Birds ◽  
Direct Count ◽  
Numerous Species ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Different Seasons

The Pichavaram Mangrove Forest (PMF) is one of the important wetlands in southern India. The PMF is harboring numerous species of shorebirds seasonally. The current study assessed the population characteristics of small wading birds by using direct count method from 2015 to 2016. In total, 27 species of small wading birds were recorded, in which the Little stint showed highest density 177.24±20.515 (No./ha.) and the Bar-tailed godwit showed lowest density 0.13±0.099 (No./ha.). Indeed the Little stint was only species turned highest density across the three different seasons studied. However, the bar-tailed godwit not recorded during the pre-monsoon and post-monsoon seasons, the Dunlin, Grey plover and Great sand plover not sighted during the post-monsoon season. The density, diversity and species richness of small wading birds showed significant differences among the seasons (P<0.001). The study inferred that the population characteristics of small wading birds are declining when compared to the previous studies. However exhaustive studies are essential to explore the quality of the PMF which is need of the hour since it is supporting various species of shorebirds seasonally.

scholarly journals Impact of seasonal variation on water quality of Hindon River: physicochemical and biological analysis

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Ruchi Sharma ◽  
Ajay Kumar ◽  
Neetu Singh ◽  
Kritika Sharma
Keyword(s):  
Water Quality ◽  
River Water ◽  
Nitrate Nitrogen ◽  
Monsoon Season ◽  
Oxygen Demand ◽  
Pollution Index ◽  
Metal Pollution Index ◽  
Post Monsoon ◽  
Post Monsoon Season

AbstractWater is the basic necessity for a living being and detritions in the quality of water led to many harmful impacts. It is important to regulate the water quality to maintain the balance in all the variation of lives. In the present study, the water samples were collected during the pre-monsoon and post-monsoon periods of February 2015–January 2017 from Mohan Nagar barrage, Ghaziabad (Uttar Pradesh, India). The assessment of the seasonal variation of water quality and its impact on the Hindon River water was evaluated by physicochemical and biological analysis. Samples were analyzed for twelve physicochemical parameters such as Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Hardness (TH), Nitrate Nitrogen, Phosphates, Sulphates, and Heavy metals (Cadmium (Cd), Lead (Pb) Iron (Fe), Zinc (Zn) and biological parameters such as Total Coliform count (TCC), Fecal Coliform count (FCC) and Standard Plate count (SPC). Besides this, River Metal Pollution Index and Integrated River Metal Pollution Index were also calculated and found above permissible limits (RMPI > 1 and IMPI > 2). The trend of heavy metal load in the Hindon River water was observed to be Fe > Zn > Pb > Cd. Lower recorded values of DO and higher levels of EC, TDS, BOD, COD, TH, Nitrate Nitrogen, and Sulphates indicate high pollution levels in Hindon River water. TCC (MPN/100 ml) in water samples was found 7.4 × 104 in pre-monsoon season and 5.8 × 104 in a post-monsoon season, FCC (MPN/100 ml) were 4.5 × 104 in pre-monsoon and 3.6 × 104 in a post-monsoon season whereas SPC (CFU/ml) were 75 × 104 in pre-monsoon and 62 × 104 in post-monsoon. Analysis of water quality parameters was performed as per Standard Methods (APHA, 1998). The Correlation coefficient matrix has been obtained to validate the interrelationship between different physicochemical parameters. The results of our study show the necessity of regular monitoring of Hindon River water for the integrity of aquatic flora, fauna, and human health.

scholarly journals Assessment of Trophic Responses of a Reservoir to Seasonal and Annual Variations in Monsoon

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2117
Author(s):  
Su-mi Kim ◽  
Hyun-su Kim
Keyword(s):  
Water Quality ◽  
Trophic State ◽  
Monsoon Season ◽  
Phytoplankton Growth ◽  
Phosphorus Loading ◽  
Nutrient Concentrations ◽  
Trophic State Index ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
State Index

The variations in water quality parameters and trophic status of a multipurpose reservoir in response to changing intensity of monsoon rain was investigated by applying a trophic state index deviation (TSID) analysis and an empirical regression model to the data collected in two periods from 2014 to 2017. The reservoir in general maintained mesotrophic conditions, and Carlson’s trophic state index (TSIc) was affected most by TSITP. Nutrient concentrations, particularly phosphorus, did not show strong correlations with precipitation, particularly in the period with weak monsoon, and a significant increase in total phosphorus (TP) was observed in Spring 2015, indicating the possibility of internal phosphorus loading under decreased depth and stability of water body due to a lack of precipitation. TSIChl was higher than TSISD in most data in period 1 when a negligible increase in precipitation was observed in the monsoon season while a significant fraction in period 2 showed the opposite trend. Phytoplankton growth was not limited by nutrient limitation although nutrient ratios (N/P) of most samples were significantly higher than 20, indicating phosphorus-limited condition. TSID and regression analysis indicated that phytoplankton growth was limited by zooplankton grazing in the Spring, and that cell concentrations and community structure in the monsoon and post-monsoon season were controlled by the changing intensity of the monsoon, as evidenced by the positive and negative relationships between community size and cyanobacterial population with the amount of precipitation in the Summer, respectively. The possibility of contribution from internal loading and an increase in cyanobacterial population associated with weak monsoon, in addition to potential for nutrient enrichment in the post-monsoon season, implies a need for the application of more stringent water quality management in the reservoir that can handle all potential scenarios of eutrophication.

A Study on Prevalence and Seasonal Distribution of Dengue at a Tertiary Care Centre of North India

Healthline ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 100-107
Author(s):  
Arti Agrawal ◽  
Vikas Kumar ◽  
Sanjeev Kumar ◽  
Neha K Mani
Keyword(s):  
Monsoon Season ◽  
Dengue Infection ◽  
Tertiary Care ◽  
Seasonal Distribution ◽  
North India ◽  
Care Centre ◽  
Tertiary Care Centre ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Male Preponderance

Introduction: Dengue virus infection is a major public health issue prevalent in tropical and sub-tropical countries all over the world mostly in urban and semi-urban areas. WHO estimates about 50-100 million dengue infections worldwide every year. The present study is aimed to assess the prevalence and seasonal distribution of dengue disease during three consecutive years from 2016-2018 at a tertiary care centre of North India. Method: This is an observational retrospective study conducted on total 6,481 clinical suspected cases referred from indoor and outdoor departments of Medicine and Pediatrics of one of the medical colleges of Agra during the period from 1st January 2016 to 31st December 2018. Results: The maximum positivity was recorded in the year 2016 (16.66%), followed by 2017 (14.07%) and 2018(13.56%).Our study shows male preponderance with maximum cases in the year 2018 was recorded in the month of October (22.75%) whereas the lowest in the month of May (1.96%). Most of the cases were in the age group 0-30 years with a male preponderance. The outbreak occurred during the months of August to November indicating vector transmission in the monsoon and post-monsoon season. Conclusion: From the analysis, this study reflects that the numbers of dengue cases in 2016 were maximum and outnumbered the dengue cases among three consecutive years from 2016 to 2018. The peak in dengue positivity was observed during September to October. As this disease affects the population in the monsoon and post monsoon months therefore continuous monitoring of dengue infection is important during the post-monsoon season.

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