期刊名称：International Journal of Advances in Engineering and Management
电子版ISSN：2395-5252
出版年度：2022
卷号：4
期号：1
页码：912-917
DOI：10.35629/5252-0401719728
语种：English
出版社：IJAEM JOURNAL
摘要：The present study investigates the water quality of the Dal Lake. The samples were collected from four different locations to cover all the areas of lake. The sample sites include Nigeen, Boddal, Gagribal and Hazratbal areas. The pH, Alkalinity, TDS and Temp. were measured over a period of four months from July to October 2021. The secondary data on BOD, NO3 and heavy metals was collected from the Jammu & Kashmir Lake Conservation and Management Authority (JKLCMA). Results inferred that the currently, the water quality of the Dal Lake deteriorated and observed significant pollution. The pH and TDS of the lake is quite high and measured in the range of 9.5 – 10. Among various basins the Gagribal basin recorded the higher TDS values varying from 221 mg/l to 269 mg/l whereas the Hazratbal basin recorded the lower values varying from 200 mg/l to 255 mg/l. TDS concentration in Boddal basin vary from 205 mg/l to 252 mg/l and in Nageen basin from 200 mg/l to 267 mg/l. The overall calcium and magnesium content of lake is high. Based on the results, collected and measured, it was observed that the Dal Lake is undergoing rapid eutrophication (due to rapid anthropogenic disturbances) under increasing anthropogenic influences in the drainage basins. The rate of pollution varies from one site to other based on the creeping of the wastewater. The nitrogen and phosphorus compounds were found high and mainly their source is human wastes, detergents and agricultural practices. The pollutant load in the Dal has accelerated the unwanted plant growth which in turn has reduced the water quality of the lake. Correlation with available data shows continuous deterioration in water quality. Choking of lake has occurred due to closure of its natural drainage system called “Nalla Mar” which has been converted in to a macadamized road. Immediate remedial measures are needed to salvage the lake and long-term rehabilitative measures are needed to restore the original condition of the lake.
