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Survey of water quality in Moradbeik river basis on WQI index by GIS

عنوان مقاله: Survey of water quality in Moradbeik river basis on WQI index by GIS
شناسه ملی مقاله: JR_EHEM-2-1_002
منتشر شده در شماره ۱ دوره ۲ فصل Winter در سال 1394
مشخصات نویسندگان مقاله:

Mohammad Taghi Samadi - Associate Professor, Department of Environmental Health Engineering, School of Public Health and Center for Health Research, Hamadan University of Medical Sciences, Hamadan, Iran
Shahram Sadeghi - MSc Student of Environmental Health Engineering, Student Research Committee, Department of Environmental Health Engineering, School of Public Health, Kurdistan University of Medical Sciences, Sanandaj, Iran
Alireza Rahmani - Professor, Department of Environmental Health Engineering, School of Public Health and Center for Health Research, Hamadan University of Medical Sciences, Hamadan, Iran
Mohammad Hossien Saghi - Ph.D student of Environmental Health Engineering, Department of Environmental Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran

خلاصه مقاله:
Background: Survey of pollution and evaluation of water quality in rivers with Oregon Water Quality Index (OWQI) and GIS are effective tools for management of the impact of environmental water resources. The information in calculating the WQI of Moradbeik river allowed us to take our tests results and make a scientific conclusion about the quality of water. GIS can be a powerful tool for developing solutions for water resources problems for assessing water quality, determining water availability, preventing flooding, understanding the natural environment, and managing water resources on a local or regional scale.Methods: The WQI of Moradbeik river consists of nine tests: Fecal Coliform (FC), Biochemical Oxygen Demand (BOD5), Nitrates (NO3), Total Phosphate (PO4), pH, temperature, Dissolved Oxygen (DO), turbidity, and Total Solid (TS). Water quality of Moradbeik river was investigated for 12 months. Concentrations of these nine variables were normalized on a scale from 0 to 100 and translated into statements of water quality (excellent, good, regular, fair, and poor). Also this data were analyzed with WQI index, and then river basis on water quality was zoning by GIS.Results: The average of WQI was 61.62, which corresponded to ‘‘medium’’ quality water at the sampling point 1 (best station) and decreased to around 26.41 (bad quality) at sampling point 6. The association between sampling points and water quality indexes was statistically significant (P<0.05).Conclusion: Based on physical, chemical and biological agent monitoring and also with control of water quality indexes of these points, we observed wastewater and other river pollutants.

کلمات کلیدی:
Water quality evaluation, Water quality index, GIS, Moradbeik

صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/488002/