Human activity drives pollution in Dal, Nigeen lakes

Srinagar, Sep 3: Human activity is emerging as a major source of pollution in Dal and Nigeen lakes, with a study recording elevated phosphate concentrations and pointing to domestic sewage, detergents, fertilizers and pesticide residues as important contributors to the deteriorating water quality of the two iconic Srinagar water bodies.
The findings point to a significant nutrient load entering the lakes through human-generated waste, raising concerns over the long-term health of their aquatic ecosystems.
Dal Lake recorded a phosphate concentration of 5.10 mg, while concentrations in Nigeen Lake ranged between 4.22 and 4.99 mg, according to the study findings. The elevated phosphate levels have been associated with inputs from domestic sewage, household detergents, fertilizers and pesticide residues.
The study also found a higher concentration of particulate matter in Dal Lake compared with Nigeen, indicating a heavier pollution burden in parts of the larger and more heavily used water body.
The findings highlight the impact of untreated or inadequately managed solid and liquid waste entering the lakes. Domestic discharge, detergent-rich wastewater and runoff carrying agricultural chemicals can introduce nutrients and other contaminants into the lake system, affecting water quality and aquatic conditions.
High phosphate levels are particularly significant because excessive nutrient loading can contribute to the deterioration of water quality and alter the ecological balance of lakes.
The study has recommended regular monitoring of water quality in Dal and Nigeen to track changes in pollution levels and identify sources requiring intervention.
The findings also underline the need to look beyond periodic clean-up operations and examine the pathways through which sewage, household wastewater, solid waste and chemical residues continue to reach the lakes.
For Srinagar, where Dal and Nigeen remain central to tourism, livelihoods and the city’s ecological identity, the study raises a fundamental question over how long the lakes can absorb the growing pressure of human activity without sustained control of pollution at its source. [KNT]