Sand mining undermining rivers: farmers
Farmers in Ambur area complained of pollution of groundwater sources in the area on account of the indiscriminate discharge of effluents from the tanneries into the Palar river. An official of the Tamil Nadu Pollution Control Board said that 50 per cent of the salt is recovered from the tannery effluents in the Common Effluent Treatment Plant (CETP) in Thuthipet near Ambur.