Physiochemical Profile of Tilyar Lake – Essential Parameters for Sustainable Biodiversity

Objectives: To investigate the seasonal fluctuations in water quality of Tilyar Lake, Rohtak by analyzing physicochemical parameters in summer, monsoon and winter seasons during 2023-2024. Methods: Water samples were collected from three different sites, chosen on the basis of anthropogenic interference, in three seasons namely summer, monsoon and winter. Bureau of Indian Standards (BIS) approved methods were used to analyze different parameters as temperature, pH, TDS, TSS, EC, TH and Nitrate. Inductively Coupled Plasma- Mass Spectrometry (ICP-MS) was used to assess the heavy metals. Findings: Parameters like temperature (ranging between 24.36 ± 0.12 to 27.63 ± 0.66), pH (8.23 ± 0.02 to 9.55± 0.01), TDS (143.67 ± 1.52 to 174.67 ± 2.08), TSS (148.00 ± 2.00 to 201.67 ± 1.52), EC (215.67 ± 3.51 to 285.33 ± 2.51), TH (75.33 ± 1.52 to 108.00 ± 01) and Nitrate etc. showed statistically significant difference between the three seasons. However, among the sites there was no significant difference observed in the three seasons. All the parameters except pH were found to fall within the permissible limits of BIS. Heavy metals such as Arsenic and Nickel were also detected in the water samples. Novelty: The surface water quality is affected continuously by various factors. Periodic assessment of water quality is hence very important. This study provides supportive evidences for season based special management to maintain the lake health for the development of sustainable biodiversity. Keywords: Biodiversity, Heavy Metals, Physicochemical, Water quality, Tilyar Lake