Ground water pollution in alluvial and prolluvial region of the Strumica valley, Republic of Macedonia

Kovacevik, Biljana and Boev, Blazo and Karov, Ilija and Mitrev, Sasa (2015) Ground water pollution in alluvial and prolluvial region of the Strumica valley, Republic of Macedonia. In: 20 Years Trakia University, Scientific Anniversary Conference, 19-20 May 2015, Stara Zagora, Bulgaria.

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The quality of groundwater is investigate for possible agriculture pollution in the traditional agriculture region of Strumica. Almost 200 samples are investigate for a total content of Na+, K+, Ca2+, Mg2+, Cl-, HCO3-, SO42-, NO3-, NO2-, NH4+, and PO43-. The results showed that groundwater in the study area are generally neutral to slightly alkaline. The abundance of the major ions is Mg2+>Ca2+> K+>Na+ for cations and HCO3->Cl->SO42-for anions. Concentrations range is between 1,40 - 36,71mg/l, 0,50 - 354,44 mg/l, 7,43 – 411,18 mg/l, 1,07- 96,14 mg/l and 0,25 – 55,89 mg/l for Na+, K+, Ca2+ Mg2+ and NH4+, respectively. Regarding anions Cl-, HCO3-, SO42-, NO3-, NO2-, and PO43- concentration range is 4,19 – 614,31mg/l, 0,25 – 1116,38 mg/l, 0,25 – 300,45 mg/l, 0,14 – 284,44 mg/l, 0,25 – 35,85 mg/l and 0,25 – 7,80 mg/l, respectively. A multivariate statistical analysis is performed to evaluate the possible interrelationship within the set of variables. Statistical and hydrochemical analysis suggest that the quality of groundwater is mainly affected by the geological composition of the area. Factor analysis (FA) revealed five significant factors of 15 variables and account for 69,38 % of the total variance. Although nitrates are considered as significant source of widespread groundwater contamination when it comes to agriculture areas, the investigation didn’t show any severe contamination with the exception of the periphery of the valley which is considered to be related with the thickness of the basal lithozone (20-50 m) represented mostly by sandstones and the shallow aquifers.

Item Type: Conference or Workshop Item (Poster)
Uncontrolled Keywords: irrigation quality parameters, hydrochemical analysis, agriculture pollution.
Subjects: Natural sciences > Chemical sciences
Agricultural Sciences > Other agricultural sciences
Divisions: Faculty of Agriculture
Depositing User: Biljana Kovacevic
Date Deposited: 14 Dec 2017 10:21
Last Modified: 14 Dec 2017 10:21

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