NU researchers analyze Dhansiri River pollution

Nagaland University (NU) researchers conducted a study on the Dhansiri River’s pollution levels, assessing its water quality across all four seasons. Led by Dr. M. Romeo Singh, Associate Professor in the Department of Botany, the study highlights the impact of urbanization, waste discharge, agricultural runoff, and poor waste management on the river’s ecosystem.
Findings showed that turbidity and total alkalinity often exceeded national and WHO guidelines, especially in summer, making downstream water unsafe for consumption. Researchers used the Water Quality Index (WQI) to evaluate seasonal variations and pollution stressors, identifying urban runoff, garbage disposal, religious practices, and sand mining as key contributors to water contamination.
The study proposes relocation of dumping sites, bans on direct waste disposal, upgraded wastewater treatment systems, improved drainage infrastructure, enforcement of stronger water policies, and regular community monitoring. If implemented, these measures could enhance public health, sustainable agriculture, and ecological restoration, setting a model for neglected water bodies in India.
Future research will explore biological indicators, heavy metals, and emerging pollutants to further refine solutions for river restoration. The findings establish a benchmark for water quality studies in lesser-known river systems, emphasizing the urgent need for conservation efforts.