India, March 23 -- Laboratory tests conducted on water samples from three wetlands in Nerul have raised fresh concerns about ecological degradation, with activists pointing to severe pollution, poor tidal circulation and possible sewage contamination in key flamingo habitats.

The affected sites - DPS Flamingo Lake, the NRI wetland and T.S. Chanakya lake - function as satellite ecosystems to the Thane Creek Flamingo Sanctuary (TCFS), supporting flamingos during tidal cycles. However, activists said the wetlands are no longer functioning as active intertidal systems due to restricted water flow and rising pollution.

Water samples collected by the NatConnect Foundation and analysed at a Thane laboratory showed several parameters breaching ...