EVALUATION OF DISSOLVED INORGANIC AND ORGANIC CARBON CONCENTRATIONS (DIC, DOC) AND THEIR ISOTOPIC COMPOSITIONS (δ13C-DOC, δ13C-DIC) IN WATER RESOURCES OF THE KARDE CATCHMENT (NORTH OF MASHHAD)

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MOHAMMADZADEH HOSSEIN; SHIRNEJAD ZAHRA

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Journal: WATER AND WASTEWATER Year:2015 | Volume:26 | Issue:3 (97) Page(s): 81-92

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Title

EVALUATION OF DISSOLVED INORGANIC AND ORGANIC CARBON CONCENTRATIONS (DIC, DOC) AND THEIR ISOTOPIC COMPOSITIONS (δ13C-DOC, δ13C-DIC) IN WATER RESOURCES OF THE KARDE CATCHMENT (NORTH OF MASHHAD)

Author(s)

MOHAMMADZADEH HOSSEIN | SHIRNEJAD ZAHRA | Issue Writer Certificate

Keywords

DISSOLVED INORGANIC CARBONQ2

DISSOLVED ORGANIC CARBONQ2

STABLE 13C ISOTOPEQ2

KARDE CATCHMENTQ2

Abstract

In this paper, the variations of dissolved inorganic and organic carbon (DIC, DOC) concentrations and their isotopic compositions (d13C - DIC, d13C - DOC) were evaluated in both surface and ground water resources in the KARDE CATCHMENT area (with an area of about 547 Km2, located in the North of Mashhad). To identify the sources of the dissolved carbon (DIC and DOC), samples were collected in June 2011 from surface and ground water resources (river, dam’s lake, springs, wells, and Qanat) and from depths of 1, 5, 10, 15, and 20 meters of Karde dam lakeat a point located near the dam outlet. Field parameters (T, EC, and TDS) were measured during sampling. All measurements were performed in the G.G. Hatch Stable Isotope Laboratory at the University of Ottawa, Canada. The concentrations and isotopic compositions of DIC and DOC were determined using TCA and CF-IRMS instruments, respectively. Based on the results obtained, the average values of DIC are 54.1 mg/l and 66.8 mg/l in the surface and ground water resources in the KARDE CATCHMENT area, respectively; the average values of DOC are 2.2 mg/l and 0.45 mg/l; the average values of d13C -DIC are -7‰ and -11 ‰; and the average values of d13C -DOC are -31.6‰ and -29.5 ‰, respectively. In general, the concentrations of DIC, DOC, and their isotopic compositions (d13C -DIC, d13C -DOC) are different in the various water resources (surface and ground water) in the catchment and the major source of dissolved carbon in the catchment area is believed to be due to the lithology (limestone and dolomite carbonate rocks) and partly due to the vegetation (plants C3) in the region.

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APA: Copy

MOHAMMADZADEH, HOSSEIN, & SHIRNEJAD, ZAHRA. (2015). EVALUATION OF DISSOLVED INORGANIC AND ORGANIC CARBON CONCENTRATIONS (DIC, DOC) AND THEIR ISOTOPIC COMPOSITIONS (δ¹³C-DOC, δ¹³C-DIC) IN WATER RESOURCES OF THE KARDE CATCHMENT (NORTH OF MASHHAD). WATER AND WASTEWATER, 26(3 (97)), 81-92. SID. https://sid.ir/paper/103836/en

Vancouver: Copy

MOHAMMADZADEH HOSSEIN, SHIRNEJAD ZAHRA. EVALUATION OF DISSOLVED INORGANIC AND ORGANIC CARBON CONCENTRATIONS (DIC, DOC) AND THEIR ISOTOPIC COMPOSITIONS (δ¹³C-DOC, δ¹³C-DIC) IN WATER RESOURCES OF THE KARDE CATCHMENT (NORTH OF MASHHAD). WATER AND WASTEWATER[Internet]. 2015;26(3 (97)):81-92. Available from: https://sid.ir/paper/103836/en

IEEE: Copy

HOSSEIN MOHAMMADZADEH, and ZAHRA SHIRNEJAD, “EVALUATION OF DISSOLVED INORGANIC AND ORGANIC CARBON CONCENTRATIONS (DIC, DOC) AND THEIR ISOTOPIC COMPOSITIONS (δ¹³C-DOC, δ¹³C-DIC) IN WATER RESOURCES OF THE KARDE CATCHMENT (NORTH OF MASHHAD),” WATER AND WASTEWATER, vol. 26, no. 3 (97), pp. 81–92, 2015, [Online]. Available: https://sid.ir/paper/103836/en

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