Cauvery River Pollution – GIS Study on Vulnerability Assessment of Water Quality

Due to water scarcity, pressure for water resources is severe all over the world today. Since 1990, water contamination has become a relatively new problem, adding to the stress caused by tremendous population growth, urbanization, and industrialization. Water contamination issues have become more apparent as the urbanization process progresses, resulting in major ecological and environmental issues.

Increased water and air pollution, as well as soil degradation and large-­scale ecological impacts including acid rains, global warming, and ozone layer depletion, have resulted from industrial production with insufficient attention for environmental impacts. Urban and industrial wastes are commonly disposed off without proper treatment in most water-scarce cities.

Cauvery River Pollution Assessment

In Tamil Nadu, the Cauvery River is one of the most important sources of water for home, agricultural, and industrial use. Despite the widespread use of river water, poor water management has resulted in widespread degradation of water quality.

As a result, a thorough investigation was carried out in the Cauvery River between the latitudes of 110 29′ 35.1″ N and 100 57′ 24″ N, as well as the longitudes of 770 42′ 40.7″ E and 780 14′ 17.9″ E. In the research area, four important tributaries, including the Bhavani River, Noyal River, Amaravathi River, and Thirumanimuthar River, join the Cauvery River.

During February 2009, fifty water samples were collected from the Cauvery River and examined for physical and chemical characteristics such as pH, Electrical Conductivity, Total Dissolved Solids (TDS), alkalinity, hardness, Ca2+, Mg2+, Na+, K+, Cl-, SO42-, CO32-, HCO3- NO3-, and F-. To determine the acceptability of water for drinking and the level of deterioration, the analytical data were compared to Indian (BIS) and international (WHO) standards.

The Geographical Information System was used to investigate the spatial changes of several surface water quality metrics (GIS). According to the findings, some of the February-2009 samples above the legal drinking limit. The research also reveals that the variation in water quality over time and space is not uniform. Agricultural runoff, sewage, and industrial effluents are the most likely drivers of water quality fluctuation in the study area.

Kaveri River Pollution Research Conclusion

The results of the surface water quality analysis along the Cauvery river stretch and its tributaries, the Bhavani River, Amaravathi River, and Thirumanimuthar River, indicate that the level of pollution is currently under control, but that the situation may deteriorate in the near future due to cumulative discharge of untreated industrial effluents and pesticides.

According to the findings of this investigation, the water quality of the river Noyyal is severely impacted by pollution. The water is unfit for human consumption as well as home use. As a result, robust pollution control measures are required immediately to prevent further damage of natural water sources.

Only by improving water use and management will we be able to meet the severe freshwater difficulties that we will confront in the coming years. The purpose of this study is to better understand surface water pollution, as well as the original direction of surface water, flows in the Cauvery basin.

The protection of water resources and the remediation of water pollution are essential issues that must be addressed in order to allow ecologically sensitive building and long-term socio-economic development throughout the basin.

To do so, it is vital to first comprehend the mechanisms that cause water contamination as well as the magnitude of the problem. This research will enable environmental managers to establish more appropriate waste management and water pollution prevention policies based on collaborative initiatives by local authorities, businesses, and farms.

How is Kaveri River polluted?

Kaveri had been polluted by untreated sewage from residential areas, pollutants from industries, religious waste material from pilgrims, and construction debris. Hazardous elements such as lead, fluoride, faecal coliform, and certain suspended particles were present in high concentrations in some rivers.

Is Cauvery river drying up?

Apart from pollution, the major issue with the Cauvery River is that it is drying up. It doesn’t touch the sea for roughly seven and a half months. Every year, it shrinks by four to six kilometers.

Why is the water in the Cauvery river polluted?

Cauvery water is being polluted on a regular basis as a result of soil erosion, human and industrial pollutants being released into the river. The fact that the river is polluted within 100 kilometres from Talacauvery is really concerning.

Which is the best study of Kaveri river pollution?

Cauvery or Kaveri River Pollution can be best understood by following this research article on the Vulnerability Assessment of Cauvery River Water Quality.

What are the problems of Cauvery River in Karnataka?

Cauvery has a number of issues, including dwindling forest cover along its banks and industry dumping untreated sewage. Between 1977 and 1997, the forest cover along the banks of the river in Karnataka’s Kodagu fell by 28%, from 2,566 square kilometres to 1,841 square kilometres.

Int. Journal of Environment Sciences Archive

Author(s)- S.Hema, T.Subramani, L.Elango pp 1-17 Code : EIJES1001