Raspodjela PAH-ova u tlu Labinštine onečišćenom višestoljetnim rudarsko-industrijskim aktivnostima (Istarski ugljenokopi Raša)

master's thesis

• Title (english): Distribution of PAHs in the soil of Labin contaminated by centuries of mining and industrial activities (Istrian coalmine Raša)
• Author: Ivona Dučić
• Mentor: Gordana Medunić (mentor)
• Mentor: Gordana Pehnec (mentor)
• Committee member: Gordana Medunić (predsjednik povjerenstva)
• Committee member: Gordana Pehnec (član povjerenstva)
• Committee member: Željka Vidaković-Cifrek (član povjerenstva)
• Committee member: Sanja Faivre (član povjerenstva)
• Committee member: Nataša Bauer (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2017-10-26, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Cilj ovog rada je određivanje masenih udjela PAH-ova u tlu Labinštine kao posljedica mogućeg zagađenja zbog nekadašnjih, višestoljetnih utjecaja iskapanja i izgaranja Raškog ugljena te prateće metalne industrije. Postupak uzorkovanja je uključivao uklanjanje vegetacijskog pokrova i uzimanje lopatom vršnih 10-ak centimetara tla (topsoil) čime se dobilo 1 – 2 kg uzorka. Nakon mehaničke obrade uzoraka i prosijavanja istih uzorci su ekstrahirani te su koncentracije PAH-ova određene pomoću tekućinske kromatografije visoke djelotvornosti s fluorescentnim detektorom promjenjivih valnih duljina ekscitacije i emisije (HPLC/FLD). Dobiveni rezultati pokazuju značajnu prisutnost PAH-ova u promatranom području. Opaženo je da tlu koncentracije PAH-ova rastu u smjeru jugozapada što je povezano s nekadašnjim obližnjim odlagalištem ugljena. PAH-ovi pronađeni u tlu pirolitičkog su porijekla i nastali su kao nusprodukt sagorijevanja ugljena na veoma visokim temperaturama, no također se na promatranom području nalaze PAH-ovi nastali karbonizacijom ugljena. Rezultati pokazuju da koncentracije PAH-ova u tlu prekoračuju propisane vrijednosti što ukazuje na zagađenje okoliša PAH-ovima.

Abstract (english)

The aim of this thesis was to determine the mass fraction of polycyclic aromatic hydrocarbons (PAHs ) in Labinština soil as a consequence of a possible pollution caused by centuries of mining and industrial activities. Sampling procedure included removing vegetation and taking 10 cm of topsoil by shovel. After mechanical sample processing and sifting, samples were extracted and PAH concentrations were determined by high performance liquid chromatography with a fluorescence detector of varying wavelength of excitation and emission (HPLC/FLD). The results show significant presence of PAH in the examined area. The soil contamination increases in the southwest direction which is connected with former coal landfill. The results has demonstrated presence of pyrolitic PAHs, resulting from coal combustion at high temperatures, and PAHs, originating from unburnt coal, formed as the result of coal carbonization. Levels of PAHs in Labinština soil have exceeded values set by Croatian legislation and indicated environmental pollution of the area.

• Keywords: PAH; Raša; ugljen; HPLC; tlo
• Keywords (english): PAHs; Raša; coal; HPLC; soil
• Language: croatian
• URN:NBN: urn:nbn:hr:217:252031
• Study programme: Title: Enviromental Sciences; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra struke znanosti o okolišu (magistar/magistra struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-12-08 09:32:13