Mettur (Tamil: ) is an industrial Town municipality in Salem district in the state of Tamil Nadu, India. It is best known for the Mettur Dam. However in recent years it has been associated with rampant industrial polluting, with the Chennai-based Community Environmental Monitoring (CEM) arguing in their report of November 2007 for its designation as a "Critically Polluted Area". This argument centred around an air sample which found levels of 1,2-Dicholoroethane, a known carcinogen, at 32,432 times the United States Environmental Protection Agency (USEPA) Screening Levels. Although the Central Pollution Board is yet to respond to this argument, the findings of The Indian People's Tribunal(IPT) in 2005 and the chemical tests performed by a USEPA-approved laboratory in Oregon, USA make this one of the most pressing environmental issues in South India. Mettur, meaning 'town with crests and troughs', obtained its name owing to the undulating rocky nature of the land that makes...
