Research article

MEASURING THE WATER QUALITY OF THE TIGRIS RIVER BY APPLYING GEOGRAPHIC INFORMATION SYSTEMS (GIS) IN SOME REGION OF IRAQ

Rawaa Nader Al-saedy1; Jinan S. Al-Hassany2; Fouad K.Mashee Al-Ramahi3

Online First: October 29, 2022


Concern for natural resources and their sustainability this time period represents the current study of the Tigris River for three provinces that start included, Salah al-Din north Baghdad province one station (sammara), Baghdad province, represented by (Al-Muthanna bridage, Al-Utifiya, Al-Jadiriyah) and then Al-Kut Province in the south Baghdad, which includes (Azizia, Zubaydia, Numaniyah, Al-Muftah). Water samples were collected for three months (February, March, June) of the current year 2022. The tests were done conducted physical and chemical detectors for water quality that included five factors: potential hydrogen (pH) value range (6.5-7.9) in St.7 of month February and March respectively, Total Disolved Solid (TDS) ranged (147 -486)mg/L in St.2 and St.6 of both the month of June and February, Total Nitrogen (TN) value ranged ( 0.1-0.74) mg/ L in March and Jun in St.4 and St.1, Total phosphorous (TP) levels ranged (0.027- 0.26) in St.1 during the month of June and St.8 during the month of February , Turbidity ranged (5 - 18 )NTU at St.6 , St.8 in June and March). The results of water quality showed variations between station and months of the study. The spatial distribution of five water quality parameters within the studied area was also performed by applying (QGIS) technology to a quantum geography information system that was generated on the distance-inverse IDW method to produce the expected interpolation maps for the stations along with the study studies. The results showed a deterioration in water quality and an increase in some concentrations of variables observed for the current study stations along the course of the river, due to various human activities.

Keywords

Water quality, Tigris River, GIS, Spatial mapping and Predicted maps.