Procjena fitotoksičnosti radioaktivnog otpada iz Kaštelanskog zaljeva

undergraduate thesis

• Title (english): Phytotoxicity assessment of nuclear waste from Kaštela bay
• Author: Valerija Neduhal
• Mentor: Sandra Radić Brkanac (mentor)
• Committee member: Sandra Radić Brkanac (predsjednik povjerenstva)
• Committee member: Ivana Buj (član povjerenstva)
• Committee member: Blanka Cvetko Tešović (član povjerenstva)
• Committee member: Nenad Buzjak (član povjerenstva)
• Committee member: Marijan Kovačić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2021-06-18, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Područje Kaštelanskog zaljeva desetljećima je bilo središte industrijskih aktivnosti u Dalmaciji. U blizini bivše tvornice Jugovinil nalazi se napušteni deponij pepela i šljake s povećanom koncentracijom prirodnih radionuklida 238U, 235U, 226Ra i 210Pb. Njihova prisutnost iznad dozvoljenih koncentracija može uzrokovati negativne posljedice na hranidbene mreže i predstavlja ugrozu za prirodne resurse poput podzemnih voda, morske obale i autohtonog biljnog pokrova. Cilj ovog rada bila je toksikološka procjena tršlje (Pistacia lentiscus L.) i alepskog bora (Pinus halepensis Mill.) sakupljenih s područja taložnice bivše tvornice. Kao indikatori toksičnosti mjereni su biokemijski pokazatelji toksičnosti - sadržaj malondialdehida, fotosintetskih pigmenata te aktivnosti enzima superoksid dismutaze (SOD), katalaze (CAT), askorbat peroksidaze (APX) i glutation-S-transferaze (GST). Rezultati istraživanja pokazali su statistički značajne razlike u sadržaju proteina, fotosintetskih pigmenata i aktivnosti pojedinih enzima u listovima tršlje, a posebice alepskog bora s lokacije Jugovinil u odnosu na biljke s kontrolne lokacije. Rezultati fitotoksikološke analize tršlje i alepskog bora ukazuju na negativan utjecaj odloženog pepela i šljake s povišenim koncentracijama prirodnih radionuklida na novonastale biljne zajednice.

Abstract (english)

For decades, the area around Kaštela bay was known as the center of industrial activities in Dalmatia County. Radioactive coal ash and slag with high 238U, 235U, 226Ra, 210Pb values were ilegally disposed around ex-chemical factory Jugovinil. High presence of these elements can cause negative consequences on food chains and natural resources like groundwater, sea coast and native plant species. The aim of this study was toxicological evaluation of pine (Pinus helepensis Mill.) and mastic tree (Pistacia lentiscus L.) collected from coal ash and slag landfill. The chlorophylls and carotenoids, malondialdehyde and enzyme activities (superoxide dismutase, ascorbate peroxidase, catalase and glutathion-S-transferase) were used as biochemical toxicity indicators. The results showed statistically significant differences in relative protein and pigment abundance and individual enzyme activities in both pine and mastic tree leaves from contaminated location compared to those from control location. The results of phytotoxicity analysis of pine and mastic tree indicate negative influence of deposited coal ash and slag with elevated concentrations of naturally occurring radionuclides on newly formed plant communities.

• Keywords: radionuklidi; NORM; Jugovinil; pepeo; šljaka; toksičnost; alepski bor; tršlja
• Keywords (english): radionuclides; NORM; Jugovinil; coal ash; slag; toxicity; mastic tree; pine tree
• Language: croatian
• URN:NBN: urn:nbn:hr:217:366834
• Study programme: Title: Environmental Sciences; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) struke znanosti o okolišu)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2023-06-18
• Created on: 2021-07-22 12:06:58