Abstract
Limnological studies of Keenjhar Lake were carried out during January 2003 to December 2005. The present study deals with physico -chemical parameters such as, temperature, pH, alkalinity, chlorides, conductivity, total dissolve solids, turbidity, dissolve oxygen, calcium and magnesium. The maximum and minimum range of physico -chemical properties were as, temperature 18 -33 ⁰C from station 2 in January and August respectively, pH 7.3 -8.9 in September and June respectively, alkalinity 160 -240 mg L-1in July and January respectively, minimum chlorides 30 mg L-1in September and maximum 85 mg L-1in December, conductivity 320 S cm-1in September and 496 S cm-1in December, total dissolve solids were 240 mg L-1in September and 391 mg L-1in October, turbidity was 30 NTU in December and 78 NTU in May, dissolve oxygen was 7.0 mg L-1in January and 9.0 mg L-1in July, calcium 50 mg L-1in July and September and 78 mg L-1in October, magnesium 21 mg L-1in August and September, 35 mg L-1June, and it is concluded that the variation in parameters were due to rain and flow of River Indus.
K. H.Lashari, A. L. Korai,, G. A. Sahato, T. G. Kazi. (2009) Limnological Studies of Keenjhar Lake, District, Thatta,Sindh, Pakistan, Pakistan Journal of Analytical & Environmental Chemistry, Volume 10, Issue 1-2.
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