PASIGHAT, Dec 6:The State Water Quality Testing Laboratory (SWQTL), PHE & WS Department, Itanagar which has tested the water sample of the Siang River has found it unfit for human consumption. The water sample was collected and sent for test on November 29 last.
Turbidity NTU is 482 while Iron as Fe, mg/l is 1.65 which are found to be beyond permissible limit.
Experts say, at normal levels, iron is not deadly to any aquatic animal but in unusually high amounts may lead to adverse changes in colour, odour and taste of water and has negative effects on aquatic populations, behavior and health.