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भूजल प्रदूषण Tag

15 Nov

Posted at 05:51h in Miscellaneous
2,229 views

पीने के पानी में फ्लोराइड: - एक छिपी हुई ज़हर  An adequate water resource for future generations is not only a regional issue but also a global concern. Like other parts of world, India is also facing a water crisis and by 2025 it is estimated that India’s population will be suffering from severe water scarcity. Although India occupies only 3.29 million Km2 geographical area, which forms 2.4% of the world’s land area, it supports over 15% of world’s population with only 4% of the world’s water resources. Groundwater contributes only 0.6% of the total water resources on earth; it is the major and preferred source of drinking water in rural as well as urban areas. It caters to 80% of the total drinking water requirement and 50% of the agricultural requirement in rural India. But in the era of economical growth, due to various ecological factors either natural or anthropogenic, the groundwater is getting polluted because of deep percolation from intensively cultivated fields, disposal of hazardous wastes, liquid and solid wastes from industries, sewage disposal, surface impoundments etc. Presence of various hazardous contaminants like fluoride, arsenic, nitrate, sulfate, pesticides, other heavy metals etc. in underground water has been reported from different parts of India. In many cases, the water sources have been...

30 Apr

Posted at 06:55h in Soil & Fertilizers
Ram Naresh 3,378 views

नाइट्रोजन उर्वरकों के अधिक उपयोग के कारण भूजल प्रदूषण After independence our nation's primary aim was to achieve self-sufficiency in the food production. To achieve this aim we incorporated the primary means of maximizing the yields of agricultural crops through use of fertilizers, pesticides and other chemicals besides improving the inherent quality of the seeds. Though it helped our nation in producing the food for ever-increasing population but the unsustainable path used to maximize the yield caused some grave concerns like that of groundwater pollution. Nearly five decades after the Green Revolution the sustainability of Indian agriculture, and thereby the country's food security, are both facing a serious challenge. Water is vital to life, maintenance of ecological balance, economic development and sustenance of civilizations. Planning and management of water resources and its optimal use are a matter of urgency for most countries of the world, and even more so for India with a huge population. Growing population and expanding economic activities exert increasing demands on water for varied needs - domestic, industrial, agricultural etc. Groundwater occurs as one of the important resource and is being tapped for irrigation and public health water supplies for providing drinking water. On the other hand, quality of water resources is getting degraded with increasing urbanization and industrialization....