Raspodjela bisfenola A u sedimentu i suspendiranoj tvari Jadranskog mora

doctoral thesis

• Title (english): Distribution of bisphenol A in sediments and suspended matter in the Adriatic Sea
• Author: Ivana Anđelić; MBZ: 242973
• Mentor: Slavica Matijević (mentor); MBZ: 239156
• Mentor: Ivana Ujević (mentor); MBZ: 171094
• Committee member: Vlasta Drevenkar (predsjednik povjerenstva)
• Committee member: Slavica Matijević (član povjerenstva); MBZ: 239156
• Committee member: Vesna Petrović Peroković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Chemistry); Zagreb
• Defense date and country: 2015-07-13, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry
• Universal decimal classification (UDC): 54 - Chemistry. Crystallography. Mineralogy

Abstract

Udjeli bisfenola A (BPA) određeni su u sedimentu skupljenom na 35 postaja na Jadranu (kanali, estuarij, zaljevi, otvoreno more i luke) te u suspendiranoj tvari skupljenoj u Kaštelanskom zaljevu u periodu od 1999. do 2014. godine. U sedimentima je određen i granulometrijski sastav te maseni udjeli organske tvari i organskog ugljika. Maseni udjeli BPA su u sedimentu bili u rasponu od 1,05 g kg-1 do 69,99 g kg-1, a u suspendiranoj tvari od 1,84 g kg-1 do 103,06 g kg-1. Najviši maseni udio BPA određen je na postajama izloženim antropogenim utjecajima: u Kaštelanskom zaljevu, u luci Split te u području Bakarskog zaljeva i estuarija Krke. Analizom mjesečne raspodjele udjela BPA utvrđeno je da nema izraženih sezonskih oscilacija udjela BPA u sedimentu kao ni u suspendiranoj tvari. Usporedba rezultata analize BPA u sedimentu kroz duže razdoblje na većini je postaja pokazala porast masenih udjela BPA. Istraživanje je pokazalo da ne nepostoji direktna veza između sitnozrnate frakcije u sedimentu i udjela BPA, kako je bilo pretpostavljeno u hipotezi disertacije, a slijedom uobičajene povezanosti između udjela organske tvari, organskog ugljika, fosfora i frakcije silta ili gline. Razlog je vjerojatno potpuno drukčije porijeklo BPA i kemija BPA u sedimentu koja je bitno različita od ciklusa biogenih elemenata u morskom ekosustavu.

Abstract (english)

BPA mass fractions were determined in the sediments of 35 sites in the Adriatic Sea (channels, bays, open sea and city harbours) as well as in the suspended matter at the Kaštela Bay during 1999 to 2014 period. Sediment granulometric composition and content of organic matter and organic carbon were also analyzed. Mass fractions of BPA in sediments ranged between 1,05 g kg-1 and 69,99 g kg-1, and in suspended matter between 1,84 g kg-1 and 103,06 g kg-1. The highest BPA mass fractions were found in areas under anthropogenic impacts: in Kaštela Bay, Split city harbour, Bakar Bay and Krka River estuary. Monthly analysis of BPA distribution indicated no seasonal oscilations of BPA mass fractions in sediments and suspended matter. Comparison of results of BPA analysis during a longer period indicated an increase in BPA mass fractions in sediments at the majority of sampling sites. The research revealed the lack of a direct link between the fine grain fractions in the sediment and the mass fractions of BPA, as has been assumed in the hypothesis of the dissertation following the usual relationship between the proportion of organic matter, organic carbon, phosphorus and fractions of silt or clay. The reason is probably completely different origin of BPA and its chemistry in the sediment that is significantly different from the cycle of biogenic elements in the marine ecosystem.

• Keywords: bisfenol A; HPLC; Jadransko more; sediment; suspendirana tvar
• Keywords (english): Adriatic Sea; bisphenol A; HPLC; sediment; suspended matter
• Language: croatian
• URN:NBN: urn:nbn:hr:217:916365
• Study programme: Title: Doctoral study in chemistry; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija (doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija)
• Type of resource: Text
• Extent: 101 str. ; 30 cm
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-02-07 13:27:04