The investigation of chemical quality of surface water in the North of Dezful in Khuzestan Province

Abstract

To evaluate parameters of the chemical quality of surface water flow, statistics and hydrometric stations data and results of the conducted tests on the water samples are used in area of the study. Results show that water quality in terms of parameters Ec change in taken samples from 630 micromos-cm to 6330 micromos-cm. The average value of Ec in this section is 1860.42 micromos-cm. Thus, it becomes clear that water quality of Sardasht River flowing from downstream of the Sardasht city was extremely low and has reduced the quality of water in so far as it cannot be used for drinking and agriculture. In terms of total dried residue samples (TDS), water quality of taken samples in terms of salinity is located at the level of fresh waters. One of the indicators of drinking water quality refers to its hardness which is measured based on calcium carbonate. According to the statistics of chemical constituents of water, taken samples from upstream of Sardasht are good for human drinking. Based on the Wilcox classification, taken samples from the upstream of Sardasht are located in C2S1 class and from the view of water quality for agriculture are in class of good water.