CHARACTERIZATION AND ECOLOGICAL IMPACTS OF GROUNDWATER IN AROUND NOYYAL RIVER, COIMBATORE DISTRICT, TAMIL NADU, INDIA

In this research article details the hydrogeo chemical process characterization and ecological impact of groundwater was carried out around the Noyyal river, Coimbatore region, India. In pre and post monsoon region, the surrounding shallow wells groundwaters are used for this trial experiments (50 samples) and its major cations and anions are also observed. From the analytical results it's identify that majority of ions pursue the succeeding sequence Cl > Na > Ca > Mg > HCO3 > SO4 during both seasons. About 6% of the groundwater samples was lying in under saline water group during both seasons. The dying industries use many chemicals throughout the dyes process, resulted in high content of Cl and sodium within the groundwater. During the post and pre monsoon, 42% and 45% of samples were affected. It revealed that the absorption of Na and Cl were surpassed the allowable percentage. About 55% of the examples fall in Na-Cl sort, which plainly demonstrates the prominent impact of enterprises profluent and geochemical measures on the nature of water. Spatial distribution indicates that all the major ions increase towards northern and central part of the region. Strong positive correlation for Cl with EC, Ca, Mg, and Na were observed during both seasons due to influence of anthropogenic impact and natural processes. The Kelly's and Magnesium Hazards about 50% of the samples exceeded above the limit indicates unsuitable for agriculture purpose during the season of pre and post monsoon. In current location, the process like silicate weathering and reverse ion exchange establishing the groundwater chemical properties. This study further reveals that in the proximity of industries the ground water possesses higher concentration of associated ions is found around the industries due to the ecological impact of effluents. Hence it is realised that to recover the groundwater quality of this region, it is essential to treat the effluent effectively.