Agartala: The Central Pollution Control Board (CPCB) has identified more than 350 polluted stretches in the country that includes 60 from the Northeastern states. These polluted stretches have high values of biochemical oxygen demand (BOD), turbidity and total suspended solids (TSS), a report of the Delhi-based Centre for Science and Environment (CSE) said.
...Northeast has 60 most polluted river stretches in country: CPCB
Arunachal & Sikkim have comparatively cleaner water; pollution in Manipur, Mizoram & Tripura localised near urban areas, says a Centre for Science & Environment report