文章基本信息

标题：Limnological studies of Narsinh Mehta Lake of Junagadh District in Gujarat, India
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作者：Salahuddin Khwaja ; Virendra Soni ; Manish Visavadia 等
期刊名称：International Research Journal of Environmental Sciences
电子版ISSN：2319-1414
出版年度：2013
卷号：2
期号：5
页码：9-16
语种：English
出版社：International Science Community Association
摘要：The present study was carried out for ascertaining the quality of water for the purpose of the conservation of Narsinh Mehta Lake of Junagadh. Several physicochemical parameters such as pH, total alkalinity, total hardness, total dissolved solids, chloride content, dissolved oxygen (DO), biochemical oxyen demand (BOD) were meticulously observed in different seasons for the year 2012. The dissolved oxygen was found to be the highest (7.8 mgl-1) and the lowest (6.4 mgl-1) in winter and summer season, respectively. Likewise, Biochemical oxygen demand was recorded to be the lowest (15.20 mgl-1) and the highest (25.67 mgl-1) in monsoon season and summer season, respectively. DO showed negative correlation ( r = - 0.71 ) with BOD. Water quality index was estimated and its value was found in the range of 169.93 to 256.97 in monsoon and summer season, respectively which indicated much pollution in the lake. The result indicated the lake was getting polluted due to continuous discharge of certain junk materials, debri of construction works and human interference affecting the quality of aquatic life.
关键词：Dissolved oxygen;biochemical oxygen demand;water quality