Environmental Impacts Of Floriculture Industries On Lake Ziway With Particular Reference To Water Quality

Lake Ziway is one of the rift valley fresh water lakes. The Lake have long been used as sourcernof town’s water supply, small scale irrigation, bathing, animal watering, domestic water use,rnfishery and eco-tourism .There is a lot of deliberation about floriculture industries located atrnthe shore discharging untreated effluent directly in to the lake; as a result excessive fertilizerrnand pesticide residue from the farm is deteriorating the water quality as well as the aquaticrnlife. Therefore, this study was proposed with the objective of assessing the impact ofrnfloriculture industries on the water quality. In order to do this, five sites were chosen on thernlake near the outlet of flower farms. The first site which was used as a control was located inrnthe upstream area before the effluent joins the lake water and the other four sites were at therndownstream. A total of 60 samples were tested for physicochemical, oxygen demanding,rnnutrient and micronutrient parameters. The results were analyzed using SAS software to see ifrnthere were significant differences between the control and impaired sites. In addition, thernresults were also compared with water quality guidelines to check if the concentrations ofrnthese parameters were within the permissible limits.EC,TDS,DO,BOD,COD,NO3rn-,PO43-rn,Na,Ca,Mg,k,Fe and Zn showed significant difference (P

Get Full Work

Report copyright infringement or plagiarism