Studies on the Physico-chemical Parameters and Correlation Coefficient of the River Ganga at Holy Place Shringverpur, Allahabad

The present study deals with the statistical analysis of physico-chemical parameters and cyanophycean members of two pond water quality of Chidambaram, Cuddalore district (Tamil Nadu). The qualities of pond water were analyzed for six months. Eleven important parameters were included in statistical analysis. The qualities of pond water have been assessed by calculating mean, standard deviation and correlation coefficient. Correlation studies of hydrobiology with physico-chemical parameters revealed that the relationship between phytoplankton density in general and that of the specific groups are highly complex and often controlled by interactions of different factors. In the both pond water the correlation coefficient test revealed that cyanophycean members positively correlated with temperature, pH, CO2, alkalinity, hardness, nitrate, BOD and COD at 1 % and 5 % level significant, where as it is negatively correlated with acidity and dissolved oxygen. In the present study it can be concluded that the cyanophycean members are highly tolerant organisms. They prefer to grow at higher temperatures and in highly alkaline, BOD and COD waters. Hence they can with stand high levels of contaminated waters of Thillai Kali Kovil pond, when compared to Ilamiyakkinar Kovil pond.

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Assessment of Physico-Chemical Parameters of River Ganga at Allahabad With Respect To WQI

International Journal of Innovative Research in Science Engineering and Technology ◽

10.15680/ijirset.2014.0309076 ◽

2014 ◽

Vol 03 (09) ◽

pp. 16339-16349 ◽

Cited By ~ 1

Author(s):

Ruby Pandey ◽

Divya Raghuvansh ◽

D.N Shukla

Keyword(s):

Chemical Parameters ◽

Physico Chemical ◽

River Ganga

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On the use of statistical techniques to assess the interrelationships of key water characteristics and plankton in the RIver Ganga at Veer-Bhadra Barrage

Journal of Mountain Research ◽

10.51220/jmr.v16i3.17 ◽

2021 ◽

Vol 16 (3) ◽

Author(s):

Vandana Vandana ◽

Vasantika Kashyap

Keyword(s):

Abiotic Factors ◽

Total Alkalinity ◽

Statistical Techniques ◽

Chemical Parameters ◽

Correlation And Regression Analysis ◽

Water Characteristics ◽

Physico Chemical ◽

River Ganga ◽

Statistical Relationships

Past studies have demonstrated that some physico-chemical parameters play an important role in determining the quantity and quality of plankton in mountain (Himalayan) rivers. Due to their interplay they have well-defined statistical relationships. The present study assesses relationships among water temperature, DO, pH, CO2 and total alkalinity (TA) and plankton in the foothill section of the river Ganga at Veer-Bhadra barrage, Rishikesh. The correlation and regression analysis between showed linear +ve weak (non-significant) relationship for all abiotic factors except WT-DO. DO and TA show –ve linear insignificant relationship with plankton. Weak relationships suggests a perturbed ecosystem

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Assessing the phytoplankton community and diversity in relation to physico-chemical parameters in a tropical reservoir of the River Ganga basin, India

Sustainable Water Resources Management ◽

10.1007/s40899-020-00470-z ◽

2020 ◽

Vol 6 (6) ◽

Author(s):

Jeetendra Kumar ◽

Absar Alam ◽

Uttam Kumar Sarkar ◽

Basanta Kumar Das ◽

Vijay Kumar ◽

...

Keyword(s):

Phytoplankton Community ◽

Chemical Parameters ◽

Tropical Reservoir ◽

Ganga Basin ◽

Physico Chemical ◽

River Ganga

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Studies on the Physico-Chemical Parameters and Correlation Coefficient of Sarkhej Roza Lake, District Ahmedabad, Gujarat, India

Journal of Environmental & Analytical Toxicology ◽

10.4172/2161-0525.1000284 ◽

2015 ◽

Vol 05 (04) ◽

Cited By ~ 1

Author(s):

Qureshimatva Umerfaruq M

Keyword(s):

Correlation Coefficient ◽

Lake District ◽

Chemical Parameters ◽

Physico Chemical

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Spatio-temporal distribution of zooplankton and physico-chemical conditions of Wasai Reservior, Kano State, Nigeria

Bayero Journal of Pure and Applied Sciences ◽

10.4314/bajopas.v12i1.30s ◽

2020 ◽

Vol 12 (1) ◽

pp. 186-192

Author(s):

I.H. Isyaku ◽

S. Ibrahim

Keyword(s):

Correlation Coefficient ◽

Pearson Correlation ◽

Oxygen Demand ◽

Temporal Distribution ◽

Mean Value ◽

Strong Positive Correlation ◽

Chemical Parameters ◽

Wet Season ◽

Physico Chemical ◽

Spatio Temporal

A study of spatio-temporal distribution of zooplanktonic community in relation to physico-chemical water condition of Wasai Reservoir was carried out between March and October, 2018. Three sampling sites selected for the purpose of this study were based on different human activities taking place in the areas like fishing, sand collection, washing etc. Nine physico-chemical and biological parameters were determined on fortnight basis 8:00 to 10:00am using standard methods. The result revealed that temperature, pH, Electrical conductivity, Total dissolved solids, Dissolved oxygen, Biochemical oxygen demand, transparency, nitrate and phosphate ranged from 24.4 to 29.1°C, 6.4 to 8.4, 353.3 to 846.6µS/cm, 264.3 to 602.8mg/L, 6.7 to 10.9mg/L, 2.8 to6.8mg/L, 5.6 to 12.3cm, 0.12 to 0.55mg/L and 0.08 to 0.22mg/L respectively. A total of thirteen (13) species of zooplankton were identified from the reservoir out of which three (3) belong to the class copepoda with a highest mean value of 37.67 recorded in May and lowest, 8.88 in October. Five species belong to the class Rotifera with a highest mean of 2.93 recorded in March and lowest in June (0.80). Similarly five species belong to the class Cladocera, with highest mean of 3.40 in April and lowest (0.27) in June and October respectively. The result showed seasonal variation in zooplankton species, as thier distribution increased in the dry season than in wet season, primarily due to the increase in photic depth of the water. Pearson correlation coefficient was used to determine the relationship between zooplankton and physico-chemical parameters. The correlation coefficient of physico-chemical parameters and zooplankton of the reservoir revealed strong positive correlation between zooplankton, EC, TDS, pH, Temperature and transparency at (P<0.05)while negative correlation exist between zooplankton, BOD5, DO, Nitrate and Phosphate at (P<0.05). Keywords: Distribution, Diversity, Reservoir, Wasai, Zooplankton.

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Prediction of anti-HIV activity and cytotoxicity of pyrimidinyl and triazinyl amines: A QSAR study

Chemical Papers ◽

10.2478/s11696-008-0072-5 ◽

2008 ◽

Vol 62 (6) ◽

Cited By ~ 5

Author(s):

Veerasamy Ravichandran ◽

Abhishek Jain ◽

Vishnukanth Mourya ◽

Ram Agrawal

Keyword(s):

Correlation Coefficient ◽

Statistical Significance ◽

Linear Regression Analysis ◽

External Validation ◽

Qsar Model ◽

Chemical Parameters ◽

Qsar Study ◽

Physico Chemical ◽

Qsar Models ◽

Anti Hiv

AbstractA QSAR study on a series of pyrimidinyl and triazinyl amines was performed to explore the physico-chemical parameters responsible for their anti-HIV activity and cytotoxicity. Physico-chemical parameters were calculated using WIN CAChe 6.1. Stepwise multiple linear regression analysis was carried out to derive QSAR models which were further evaluated for statistical significance and predictive power by internal and external validation. The selected best QSAR models showed correlation coefficient R of 0.914 and 0.901, and cross-validated squared correlation coefficient Q 2 of 0.685 and 0.691 for anti-HIV activity and cytotoxicity, respectively. The developed significant QSAR model indicates that hydrophobicity of the whole molecule plays an important role in the anti-HIV activity and cytotoxicity of pyrimidinyl and triazinyl amine derivatives. When hydrophobicity is increased, anti-HIV activity of the present series of compounds is decreased leading to high cytotoxicity.

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