Study the Temporal and Spatial Changes in Water Quality of Sabzposhan Wetlands by Water Quality Index (WQI)

To evaluate the quality of Sabzposhan Wetlands in Haji Abad – Bandar-E-Abbas province by index WQI, 10 stations were selected and 3 reps at each station, from April 2013 to March 2014, sampling was done with the frequency of 45 days. Using 9 water quality parameters including nitrate, nitrite, alkalinity, hardness, turbidity, electrical conductivity, dissolved oxygen, pH, BOD5, water quality index (WQI) was evaluated; for this purpose, a weight (AW) from 1 to 4 was allocated to each of the parameters, based on their importance in aquatic life and its role in the use of water resources for human consumption. Analysis of variance of the data obtained from the WQI showed significant differences between different times (p<0/01). Obtained results located the water quality in the 2 very poor and inappropriate class and it was found that the wetlands were unfit for human consumption, especially not suitable for drinking. The most important factor in evaluation of water quality based on this index was BOD5. Finally, the results of this study show that this method can be used to assess water quality and aquatic ecosystems used for human consumption.