Seasonal variation in water quality of River Vishwamitri with reference to physico-chemical parameters

River Vishwamitri at Vadodara was studied for physico-chemical parameters at four sites for summer and monsoon seasons in the year 2011. The correlation between various water quality analysis was performed. In summer, pH, EC, TDS, TSS, Turbidity and BOD showed positive correlation with temperature and negative correlation with COD, Chloride and hardness. In monsoon, TDS, EC, Turbidity, BOD, COD, Chloride and Hardness showed positive correlation with temperature and negative correlation with pH and TDS. The undesirable changes in the river quality parameters suggested that the river is highly polluted as it is used as a sewer collector

Evaluation Potential of L.triscula L. in the absorption of Zn and its effects on tissues

The aim of our work was to illustrate absorption of Zn ion and anatomical changes induced by the metal ion in Lemnatriscula L.Plants were cultured in Hoagland medium supplemented with various zinc concentrations (1,3,5,7 and 9 mg/ml) and harvested after 3 days and the metal ion accumulation within the plants was determined. Anatomical changes in the metal treated plants were observed to access the toxic effect of the metal. Treated plants of L. Triscula L. when examined by light microscopy, exhibited alteration in leaf diameter, disintegration of epidermis and layer of cortex (aerenchyma cells) and variation in vasculature resulting from Zn ion toxicit

Assessment of seasonal variation in water quality of River Mini, at

ABSTRACT The indiscriminate dumping and release of wastes containing hazardous substances into Rivers might lead to environmental disturbance which could be considered as a potential source of stress to biotic community. Mahi River located west of Vadodara city passes through the Nandesari Industrial area (NIA), with industries on both sides, served as an excellent disposal agent. The objective of the study to investigate the seasonal variation in physico-chemical chemical characteristics of Mini River water at two different sampling stations of Sindhrot, Vadodara. The analyses of river water quality containing 12 parameters were analyzed during the months of summer, monsoon and winter in the year 2010-11. The results envisaged deteriorate water quality with significant seasonal changes. The data has been compared with the norms for River water of Central Pollution Control Board (CPCB) and Gujarat Pollution Control Board (GPCB). The findings of the data obtained revealed the enhanced level of Total Dissolved Solids (TDS), Ammonia -N, Chloride (Cl -), Sulphate, Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Electrical Conductivity (EC), Alkalinity, Total Hardness (TH) and decreased in pH, Dissolved Oxygen (DO) and Turbidity during winter season. Moreover, increase of pollution load in winter season indicated the increase in organic matter in River water during the season due to the increase in anthropogenic interferences of the surrounding areas

Effect of Nickel ion on Stem of Hydrilla verticillata L.

The study sought to evaluate the potential of Hydrillaverticillata L. in the absorption of Nickle(Ni) ion and possible variations in its tissues after 7 days of exposure to this metal. Hydrilla verticillata L. were cultured in Hoagland medium supplemented with various Ni ion concentrations (as 3,5,7,9 and 11 mg/ml) and were separately harvested after 3, 5 & 7 days. In the anatomical analysis, disorganization of epidermal cells, degeneration of cortical cells and pith, highlights the variation resulting from Ni ion toxicity. However these variations were not sufficient to damage the development of an individual. Hydrilla verticillata L. showed high capacity of extraction and storage of the metal, being food alternative to aquatic environments, with high concentration of Ni ion

Habitat destruction of Azolla pinnata in Vadodara, Gujarat

Abstract - The survey was aimed to identify the effect of the change in the frequency and abundance of Azolla pinnata in Vadodara city of Gujarat. The result showed alarming sign of habitat destruction not only due to industrial pollution but also encroaching of their habitat for anthropogenic activities like building roads, closing of the ponds for human habitation at the cost of the habitat destruction of flora and fauna. Conservation and culturing of Azolla pinnata is the need of the hour for the benefit of humanity and should be explored to get the maximum benefit from it, not only in combating the problem of pollution especially in an industrial city but also for suitable supply of fooder for the livestock in a small city like Vadodara