Promjenjivost koncentracije crnog ugljika atmosferskih lebdećih čestica na području nacionalnog parka Brijuni

master's thesis

• Title (english): Variability of aerosol black carbon concentration in the area of Brijuni national park
• Author: Ivona Mikić
• Mentor: Sanja Frka Milosavljević (mentor)
• Committee member: Nives Galić (predsjednik povjerenstva)
• Committee member: Željka Soldin (član povjerenstva)
• Committee member: Davor Kovačević (član povjerenstva)
• Committee member: Iva Juranović Cindrić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Chemistry); Zagreb
• Defense date and country: 2023-02-20, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry

Abstract

Crni ugljik (BC) čini vidljivu komponentu lebdećih čestica u zraku te se smatra primarnom onečišćujućom tvari. Kako bi se utvrdile sezonske i dnevne promjenjivosti koncentracija BC na području Nacionalnog parka Brijuni, od srpnja 2021. do veljače 2022. godine po prvi puta su provedena mjerenja koncentracija BC u realnom vremenu pomoću etalometra dok je raspodjela njegovih izvora procijenjena pomoću Carbonaceous Aerosol Analysis Tool programa. Srednja koncentracija BC tijekom ljeta, 330,98 ± 205,42 ng m–3, jedna je od nižih izmjerenih na Mediteranu. Tijekom istraživanja dominirao je BC koji nastaje nepotpunim izgaranjem fosilnih goriva (BCff) s najvećim koncentracijama u jesen te tijekom turističke sezone. Tijekom jeseni opažena je najveća dnevna promjenjivost koncentracija BC koji nastaje gorenjem biomase (BCbb) s izraženim vrijednostima u jutarnjim i popodnevnim satima. Cilj rada je osigurati prve informacije o prirodnim i antropogenim izvorima BC u zraku kojima je izložen ekosustav Nacionalnog parka Brijuni radi provođenja učinkovitog nadzora kvalitete zraka ovog zaštićenog područja.

Abstract (english)

Black carbon (BC) as visible fraction of the atmospheric aerosols is recognized as the primary pollutant. In order to determine the seasonal and diurnal variability of BC concentrations and its source apportionment at the Brijuni National Park, a field campaign was conducted from July 2021. to February 2022. This study includes first real-time measurments of BC concentrations using an aethalometer while the source apportionment data was processed by Carbonaceous Aerosol Analysis Tool program. The measured mean BC concentration of 330,98 ± 205,42 ng m–3 was one of the lowest observed in the Mediterranean region. Black carbon from fossil fuel (BCff) dominated during the study period with maximum in autumn and by the upcoming tourist season. During autumn, diurnal variabilty of BC concentrations from biomass burning (BCbb) was observed with intensive morning and evening concentration peaks. The aim is to provide first data on natural and anthropogenic sources of BC at the Brijuni National Park in order to conduct effective air quality control in this protected area.

• Keywords: crni ugljik; etalometar; raspodjela izvora; zaštićeni ekosustav
• Keywords (english): black carbon; aethalometer; source apportionment; protected ecosystem
• Language: croatian
• URN:NBN: urn:nbn:hr:217:870586
• Project: Number: IP-2018-01-3105; Title: Biokemijski odgovori površinskog sloja oligotrofnog područja Jadranskog mora na atmosfersko taloženje; Acronym: BiREADI; Leader: Sanja Frka Milosavljević; Jurisdiction: Croatia; Funder: HRZZ; Funding stream: IP
• Study programme: Title: Graduate university studies in chemistry; specializations in: Research programme; Course: Research programme; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra kemije (magistar/magistra kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2025-02-20
• Created on: 2023-03-01 11:19:35