Hydrochemical assessment and groundwater pollution parameters in arid zone: Case of the Turonian aquifer in Béchar region, southwestern Algeria

• Autorzy: Mokeddem I. , Belhachemi M. , Merzougui T. , Nabbou N. , Lachache S.

Identyfikatory

DOI

10.2478/jwld-2018-0065

Warianty tytułu

PL

Ocena hydrochemiczna i zanieczyszczenie wód gruntowych w strefie klimatu suchego – przykład poziomu wodonośnego z turonu (późna kreda) w regionie Béchar w południowo-zachodniej Algierii

• Języki publikacji: EN

Abstrakty

EN

Groundwater samples from Turonian aquifer of Béchar region were evaluated as drinking and irrigation water sources. physicochemical parameters including pH, EC, TH, Na⁺, Ca²⁺, Mg²⁺, Cl^–, SO₄^2– and NO₃^– were determined for 16 water sampling points. These characterizations show that the groundwater is fresh to brackish, slightly alkaline and the major ions are Na⁺, Ca²⁺, Mg²⁺, Cl^– and SO₄^2–. According to WHO standards, 50% of the analysed water are suitable as a drinking source while the other samples are not in compliance with drinking water standards. This non-compliance is basically due to the high concentrations of Na⁺, Cl^–, and SO₄^2– requesting further treatment to reach the stringent standards. According to the results of nitrate concentrations, anthropogenic source seems to influence the groundwater quality. The present study shows that Béchar groundwater may represent an important drinking and irrigation water source. However, a specific management strategy should be adapted in order to avoid the contamination by anthropogenic sources.

PL

Oceniano przydatność wód gruntowych z wieku/piętra turonu w regionie Béchar do nawadniania i zaopatrzenia ludności w wodę pitną. W próbkach wody z 16 stanowisk oznaczano pH, przewodność elektrolityczną (EC), całkowitą twardość (TH), Na⁺, Ca²⁺, Mg²⁺, Cl^–, SO⁴_2– i NO₃^–. Analiza wykazała, że wody gruntowe są słodkie do słonawych, alkaliczne, a głównymi jonami są: Na⁺, Ca²⁺, Mg²⁺, Cl^– i SO₄^2–. Według norm WHO 50% analizowanych próbek spełnia wymogi stawiane wodzie przeznaczonej do picia. W pozostałych próbkach zbyt duże stężenie Na⁺, Cl^– i SO₄^2– wskazuje na konieczność uzdatniania wody, aby osiągnęła ona wymagane standardy. Stężenie azotanów wskazuje na antropogeniczne źródło zanieczyszczenia tymi jonami. Badania dowodzą, że wody gruntowe Béchar mogą być źródłem wody do nawadniania i do celów spożywczych. Należy jednak przyjąć szczególną strategię gospodarowania wodą, aby uniknąć zanieczyszczenia ze źródeł antropogenicznych.

Słowa kluczowe

EN

Béchar region; groundwater; hydrochemistry; Turonian aquifer; water quality

PL

hydrochemia; jakość wody; poziom wodonośny z turonu; region Béchar; wody gruntowe

• Wydawca: Wydawnictwo ITP
• Czasopismo: Journal of Water and Land Development
• Rocznik: 2018
• Tom: no. 39
• Strony: 109--117
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Mokeddem I.

• University Tahri Mohamed Bechar, Chemistry and Environmental Sciences Laboratory, BP. 417, Rue de l’indépendence, 8000 Béchar, Algeria

autor

Belhachemi M.

• University Tahri Mohamed Bechar, Chemistry and Environmental Sciences Laboratory, BP. 417, Rue de l’indépendence, 8000 Béchar, Algeria

autor

Merzougui T.

• University Tahri Mohamed Bechar, Energetic Laboratory in the Arid Zone (ENERGARID), Bechar, Algeria

autor

Nabbou N.

• University Tahri Mohamed Bechar, Chemistry and Environmental Sciences Laboratory, BP. 417, Rue de l’indépendence, 8000 Béchar, Algeria

autor

Lachache S.

• University Tahri Mohamed Bechar, Energetic Laboratory in the Arid Zone (ENERGARID), Bechar, Algeria

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