Multivariate analysis for evaluation the water quality of Tigris river within Baghdad city in Iraq

The aim of this study is to evaluate the water quality of Tigris river by measuring the physicochemical parameters of the river within Baghdad city in Iraq from the period of February 2017 to February 2018. Four sites were selected from upreach, reach and downreach. Temperature of air and water, pH,...

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Bibliographic Details
Published in:Iraqi journal of agricultural science 2019-01, Vol.50 (1), p.331-342
Main Authors: al-Ani, Rana Riyad Khalil, al-Ubaydi, Abd al-Hamid Muhammad Jawad, Hasan, Fikrat Majid
Format: Article
Language:English
Subjects:
Air temperature
Anthropogenic factors
Aquatic ecosystems
Biochemical oxygen demand
Chemical oxygen demand
Contamination
Dissolved oxygen
Drinking water
Electric bridges
Electrical conductivity
Electrical resistivity
Environmental impact
Global positioning systems
GPS
Human influences
Laboratories
Multivariate analysis
Nitrates
Nutrients
Organic carbon
Organic chemistry
Organic matter
Oxygen
Parameters
Pollution
Principal components analysis
River ecology
Rivers
Salinity
Surface water
Total organic carbon
Turbidity
Water flow
Water pollution
Water quality
الأنهار
التحليل متعدد المتغيرات
جودة المياه
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Summary:The aim of this study is to evaluate the water quality of Tigris river by measuring the physicochemical parameters of the river within Baghdad city in Iraq from the period of February 2017 to February 2018. Four sites were selected from upreach, reach and downreach. Temperature of air and water, pH, electrical conductivity, salinity and water flow were measured in the field, While, the laboratory measurements included total dissolved substances (TDS), total suspended substances (TSS), turbidity, nutrients (nitrite, nitrate and phosphate), biochemical oxygen demand (BOD), chemical oxygen demand (COD), dissolved oxygen (DO), organic matter and total organic carbon (TOC), these parameters were used to indicate the pollution of Tigris River ecosystem. The results show that all parameters variation in both seasons (wet and dry), which has led to a deterioration in water quality. A higher level of contamination was recorded at reach sites (Al-Sarrafia Bridge and Al-Shuhada Bridge) in contrast to other sites (Al-Muthanna Bridge and Al-Dora Bridge). This indicates that the Tigris river in the middle of Baghdad city is more polluted due to the anthropogenic
ISSN:0075-0530
2410-0862
DOI:10.36103/ijas.v50i1.299