A study of monthly changes in some physical, chemical, and phytosanitary parameters in Tigris river at Salah Din governorate

الملخص EN

The current study aims dealt with the measurement of some physical and chemical properties of water and plant nutrients and their monthly fluctuations of Tigris River within the Salah al-Din province for five power stations ( Baiji - Tikrit - Mikaishefa - Samarra - Balad) from July (2013) till April (2014).

One sample was collected per month from each plant.

In the laboratory samples were analyzed according to the methods mentioned.

The study examined the measurement (temperature air and water, pH, conductivity, dissolved oxygen, Turbidity, total basal, total hardness, chloride, Sulphate, nitrates, phosphates).

The results of the study showed that the temperature of air and water was characterized by its rise in the summer and decrease in winter, ranged from (6- 380C) and (10- 22 0C), respectively.

Turbidity was high in April and its value ranged in all stations between (2.3 - 31.5).

The electrical conductivity was at the higher value (630 μs/cm) in January, (2014), while the less value is (480 μs/cm) in April (2014).

The value of the pH was slightly alkaline to alkaline, ranged between (7.3 - 8.4).

Dissolved oxygen values ranged between (6.3- 9.1) mg/L, the highest value of Alkalinity recorded in April (2014) and (200) mg/L, the minimum value is 109 mg/L in January (2014).

The total values of the Tigris River water was ranged from (180 - 280) mg/L.

The chloride ions values recorded ranged between (31.1 - 54.8) mg/L, the value of nitrate values ranged between (1.5 - 2.7) mg/L, and phosphate ranged between (0.09 - 0.70) μg/L.

The sulphates had the highest value was (79.4) in September (2013) in the fifth station and the lowest value is (70.0) in the second station in October (2013).