A critical analysis of the environment impact assessment report of the 2000 MW lower subansiri hydroelectric project with special reference to the down stream ecology and people's livelihood.

The Environment Impact Assessment (EIA) report of the 2000 MW Lower Subansiri Hydroelectric Project prepared by the WAPCOS (Water and Power Consultancy Service, 2003) indicates that downstream survey was done only up to 7 km from the dam site without giving much importance to the actual scenario and avoiding some most crucial ecological aspects. In the report, insufficient records of terrestrial flora, phytoplanktons and fish diversity are given. No records of aquatic macrophytes, riparian flora, zooplanktons, avian fauna, floodplain crops, besides peoples' livelihood and diverse habitat provided by the river in its downstream are presented in the report.

Distribution of water quality parameters in Dhemaji district, Assam (India).

The primary objective of this study is to present a statistically significant water quality database of Dhemaji district, Assam (India) with special reference to pH, fluoride, nitrate, arsenic, iron, sodium and potassium. 25 water samples collected from different locations of five development blocks in Dhemaji district have been studied separately. The implications presented are based on statistical analyses of the raw data.

Seasonal variations of lead, arsenic, cadmium and aluminium contamination of groundwater in Dhemaji district, Assam, India.

Seasonal variations in the concentrations of groundwater with respect to arsenic, lead, cadmium and aluminium has been studied in Dhemaji district of Assam, India. The water samples were collected from 20 different sites in both dry and wet seasons. The metals were analysed by using atomic absorption spectrometer, Perkin Elmer AAnalyst 200 model.