Pollution levels in the Hooghly river rise sharply after the idols are immersed at Durga Puja, revealed a study done three years ago by J J Ghose of Calcutta University. Though publication of the

A pusher tug, a small barge that propels a bigger vessel, drowned in the Hooghly near Prinsep Ghat on Friday night, releasing oil into the river.

Persistent organic pollutants found Rising sea level and erosion aside, the Sundarbans now face a new threat. An international research team has detected polybrominated diphenyl ethers (pbde), a