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Overexploitation of Groundwater and remediation measures- an Indian experience

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A study in Kerala conducted by the Kerala Pollution Control Board in association with the SEU on the bacteriological quality of dug wells in Kerala observed that “water in none of the open dug wells investigated is of drinking water quality standards” as prescribed by Bureau of India Standard. Since Kerala is the only place in the world having highest density of open dug well (250 per sq.km) and 50% of population used this as the only source of water for drinking. In this situation, the Government of Kerala along with other stakeholders including NGOs, take stock of the situation in order to mitigate the acute shortage of drinking water.

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Remediation techniques for drinking water contamination and for elevation of water table

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Kerala is a state of south-western India with 38863 Km2 land mass. It has a population of 31.8 million. The population density is 819 persons per Km2 and accordingly the state is thrice as densely populated as the rest of India. Kerala’s temperature averages from a minimum and maximum of 19.80 C and 36.70 C respectively. The state has rainfall averaging to 300 cm

The dependence on wells is higher in rural areas of the state. Ground water is likely to be contaminated by various causes such as unsafe latrines, domestic waste dumps, and proximity of wells to latrines, waste dumps or cattle sheds. Elevation of water table during rainy season further aggravates the chances of well water contamination. The state authorities have certain action programmes in tackling water contamination and water shortage, but are only partially successful. Therefore, it necessitated evaluation and improvements.

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Climate Change impacts and Green technology – a case study from Kerala (India)

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The Government of Kerala recently creates a new Department called Directorate of Environment and Climate Change in order to deal with the emerging impacts and implications of climate change in the State of Kerala in India. An “Environment Impact Assessment Authority” has been formed in Kerala State for monitoring and assessing the environmental impacts.

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