Global water resources today is extremely polluted due to a number of reasons. The pollutants may be various inorganic salts, metals, pesticides, oil & grease, aromatics and also a variety of pathogenic organisms. Most of the surface fresh water bodies, ground water, and coastal marine water gets polluted over the years. The major water pollutants and their sources are depicted [...]
Introduction to Environmental Impact Assessment: The environmental impact assessment in India was started in 1976-77, when the planning commission asked the Department of Science and Technology to examine the river valley projects from environmental angel. This was subsequently extended to cover those projects, which required approval of the Public Investment Board. Then the Govt. of India enacted the Environment (Protection) [...]
Degradation of natural resources can occur, not just by the action of pollutants but also by improper resource utilisation practices. 1. Soil Erosion and Desertification: Topsoil is the most fertile soil and it takes centuries to build. Improper human activities can remove it, resulting in arid patches of land. Natural resources get degraded not only by pollutants, but also by [...]