Analyzes of hydrocarbons (PAH, alkanes and BTEX) in marine water of Vlora's port

Esmeralda Halo; Jonida Tahiraj; Bledar Murtaj; Sonila Kane; Elda Marku; Aurel Nuro

doi:10.5937/zasmat2302153H

Autori

Esmeralda Halo Tirana University, Faculty of Natural Sciences, Department of Chemistry, Tirana, Albania Autor
Jonida Tahiraj Tirana University, Faculty of Natural Sciences, Department of Chemistry, Tirana, Albania Autor
Bledar Murtaj Tirana University, Faculty of Natural Sciences, Department of Chemistry, Tirana, Albania Autor
Sonila Kane Tirana University, Faculty of Natural Sciences, Department of Chemistry, Tirana, Albania Autor
Elda Marku Tirana University, Faculty of Natural Sciences, Department of Chemistry, Tirana, Albania Autor
Aurel Nuro Tirana University, Faculty of Natural Sciences, Department of Chemistry, Tirana, Albania Autor

DOI:

https://doi.org/10.5937/zasmat2302153H

Ključne reči:

Luka Valona, PAH, n-alkani, BTEKS, analiza vode, GC/FID

Apstrakt

U ovoj studiji utvrđeni su nivoi policikličnih aromatičnih ugljovodonika (PAH) alifatičnih ugljovodonika (n-alkana i isparljivih ugljovodonika u uzorcima vode luke Valona koja je druga najveća luka u Albaniji. Nalazi se u zalivu Valone, u blizini grada Valone. Prisustvo ovih zagađivača u lučkom području je uglavnom zbog transporta brodova komercijalne/putničke obrade i vodenih tokova unutar/izvan područja luke. Ugljovodonici (PA n-alkani i BTEKS) se uglavnom proizvode transportom (automobili brodovi vozovi itd. vađenjem/preradom naftne industrije, rudnika uglja i drugih industrija. Paljenje šuma i njihova prirodna pozadina čine ih veoma čestim u okruženju. Uzorci vode uzeti su u maju 2022. godine u različitim stanicama luke Valona (unutar i van njenog područja). Aromatični i alifatični ugljovodonici su ekstrahovani istovremeno korišćenjem tehnike ekstrakcije tečnost-tečnost u dva koraka (LLE). Kao rastvarači za ekstrakciju prvo su korišćeni dihlorometan (MeCl2), a zatim n-heksan. Posle ekstrakcije organska faza je osušena sa anhidrovanim natrijum sulfatom, radi uklanjanja vode. Procedura čišćenja" je realizovana u koloni glinice. Nakon koncentracije do 2 ml uzorci su ubrizgani u Varian 450 GC opremljen FID detektorima. BTEKS je analiziran korišćenjem tehnike mikro-ekstrakcije čvrste faze (HS /SPME) uz upotrebu polidimetilsiloksanskih vlakana (PDMS), praćeno GC/FID tehnikom. PAH, n-alkani i BTEKS pronađeni su skoro u svim uzorcima vode luke Valona. Njihovo prisustvo može biti zbog antropogenih faktora (povećana aktivnost i brodski transport) u području luke. Nivoi ugljovodonika u uzorcima vode luke Valona bili su viši/uporedivi od prijavljenih nivoa za njih u drugim stanicama Jadranskog mora, deo Albanije.

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