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.

Seasonality of butterflies in Alagar Hills reserve forest, India

ENTOMON ◽  
2020 ◽  
Vol 45 (1) ◽  
pp. 53-60
Author(s):  
Joy Sharmila E ◽  
Thatheyus A J ◽  
Susaritha S ◽  
Snegapriya M
Keyword(s):  
Environmental Factors ◽  
Negative Correlation ◽  
Monsoon Season ◽  
Dry Season ◽  
Seasonal Prevalence ◽  
Summer Period ◽  
Positive Correlation ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Reserve Forest

Seasonal prevalence of butterflies carried out in Alagar hills reserve revealed more number of butterflies in the summer with higher density of Nymphalid butterflies followed by Papilionidae. Hesperiidae species were more in post monsoon season than in rainy or dry season. On comparing the prevalence of butterflies with environmental factors, Hesperiidae exhibited a positive correlation with rainfall, humidity and negative correlation with temperature whereas Nymphalidae and Papilionidae showed a positive correlation with temperature and negative correlation with humidity. Study showed that summer period is a suitable period for butterfly prevalence in Alagar Hills.

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 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.

scholarly journals Seasonal Nature and Trends of Tropical Cyclone Frequency and Intensity over the North Indian Ocean

2020 ◽  
Vol 15 (3) ◽  
pp. 526-534
Author(s):  
Abhisek Pal ◽  
Soumendu Chatterjee
Keyword(s):  
Time Series ◽  
Tropical Cyclone ◽  
Indian Ocean ◽  
Monsoon Season ◽  
North Indian Ocean ◽  
Post Monsoon ◽  
The North ◽  
Increasing Trend ◽  
Post Monsoon Season ◽  
Cyclone Frequency

Tropical cyclone (TC) genesis over the North Indian Ocean (NIO) region showed significant amount of both spatial and temporal variability.It was observed that the TC genesis was significantly suppressed during the monsoon (June-September) compared to pre-monsoon (March-May) and post-monsoon (October-December) season specifically in terms of severe cyclonic storms (SCS) frequency. The Bay of Bengal (BoB) was characterized by higher TC frequency but lower intensity compared to the Arabian Sea (AS). It was also observed that the TC genesis locations were shifted significantly seasonally.The movement of the TCs also portrayed some significant seasonal differences. The pre-monsoon and post-monsoon season was responsible for generating TCs with higher values of accumulated cyclone energy (ACE) compared to the monsoon. The time series of TC frequency showed a statistically significant decreasing trend whereas the time series of ACE showed astatistically significant increasing trend over the NIO.

scholarly journals Dragonflies and damselflies (Insecta: Odonata) of the Kole Wetlands, central Kerala, India

2021 ◽  
Vol 13 (3) ◽  
pp. 17963-17971
Author(s):  
A. Vivek Chandran ◽  
Subin K. Jose ◽  
Sujith V. Gopalan
Keyword(s):  
Species Richness ◽  
Monsoon Season ◽  
Survey Method ◽  
Ramsar Site ◽  
Post Monsoon ◽  
Post Monsoon Season

A year-long study was conducted at the Kole Wetlands, a Ramsar site in central Kerala to document the diversity of dragonflies and damselflies and understand their seasonality.  Checklist survey method was used to sample adult odonates in 30 randomly chosen locations.  A total of 44 species (30 dragonflies and 14 damselflies) belonging to 33 genera and eight families were recorded in the study area.  Species richness showed a peak in the post-monsoon season and a dip in the summer.  The observations support the value of the Kole Wetlands in providing valuable resources for Odonata.

Irrigation Effects on Roots and Shoots of Pearl Millet (Pennisetum typhoides)

1979 ◽  
Vol 15 (2) ◽  
pp. 161-168 ◽  
Author(s):  
P. J. Gregory ◽  
G. R. Squire
Keyword(s):  
Grain Growth ◽  
Pearl Millet ◽  
Root Length ◽  
Monsoon Season ◽  
Dry Weight ◽  
Growth Data ◽  
Pennisetum Typhoides ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Irrigation Effects

SUMMARYIrrigated and unirrigated crops of pearl millet were grown in Hyderabad, India, during the post-monsoon season of 1977. Irrigation increased both the dry weight of roots and the number of root axes, but because the additional axes were thick and unbranched the total length of roots was unaffected. However, irrigation did cause more of the root length to be in the top 20 cm of soil. Yield of the irrigated crop was higher than that of the dry crop, mainly because more tillers survived to produce grain. Grain growth of the dry crop occurred when the net growth of the crop was zero, probably because of movement of assimilate from stems to panicles. Possible strategies for improving yields are examined in the light of the growth data.

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