The CSE’s recent exposé has blown the lid off the bottled water industry’s tall claims on the purity of its products. Simultaneously, it has brought to the surface a much larger problem: contamination of groundwater by pesticides

How has the river that flows through one of the most industrialised regions in India fared since it was first written about in 1993? Down to Earth revisits the coal dust and slurry-ridden Damodar basin to see if anything has changed - for better or worse

The first comprehensive UN survey of Afghanistan's environment brings out the dismal state of affairs in the country. After more than two decades of war and three years of drought, air and water

Packaged drinking water or natural mineral water is everywhere. It is now available in pouches, cups, bottles and bulky transparent jars. It is sipped in clubs, malls and fitness centres; glugged after a walk, jog or trek; sold on railway platforms and bu

Accumulation of sulfur-containing compounds and their bacterial mediated reductions have led to the emission of pungent odors from stagnant water bodies. This study is focused on the contribution of inorganic sulfur compounds in the emission of hydrogen sulfide. The measured dissolved oxygen levels have demonstrated good negative correlations with the dissolved sulfide levels implying the oxygen deficiency is the key for the reduction of sulfate ion and sulfite ion to sulfide ion.