Karakteristike i opterećenje mikroplastikom sedimenta plaža i podplimne zone na Loparu, otok Rab

master's thesis

• Title (english): Characteristics of sediments and microplastic load in the beach and subtidal sediments of Lopar, Rab Island
• Author: Karl Bićanić
• Mentor: Igor Felja (mentor)
• Mentor: Hana Fajković (komentor)
• Committee member: Igor Felja (predsjednik povjerenstva)
• Committee member: Hana Fajković (član povjerenstva)
• Committee member: Katarina Gobo (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2023-09-20, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract

Prikupljeno je 14 uzoraka sedimenta iz tri uvale (Podšilo, Sahara, Livaĉina) na poluotoku Loparu, otok Rab. Na uzorcima je provedena granulometrijska, kalcimetrijska i rendgenska analiza. Uzorci su još podvrgnuti postupku odvajanja ĉestica na temelju gustoće, nakon kojeg je bilo moguće prouĉavanje mikroplastike. Uzorci granulometrijski pripadaju pijescima uz niske postotke mulja i/ili šljunka, uz iznimku jednog uzorka koji je vrlo slabo muljeviti pjeskoviti šljunak. Mineralni sastav sedimenata... More devet uzoraka je dominantno kvarcni, dok pet uzoraka sadrţi više od 50 % kalcita. Nakon kvarca i kalcita, najĉešći minerali su feldspati. Analiza mikroplastike je pokazala kako je kod sve tri uvale prisutno visoko opterećenje mikroplastikom. Dubina mora nije utjecala na brojnost komada mikroplastike. Glavni izvori zagaĊenja mikroplastikom su turizam i industrija. Less

Abstract (english)

Fourteen sediment samples were collected from three bays (Podšilo, Sahara, Livaĉina) on the Lopar Peninsula, Island of Rab. Granulometric, calcimetric, and X-ray analyses were performed on the samples. The samples were also subjected to a particle separation process based on density, after which microplastic analysis was performed. Collected samples are predominantly sands with low percentages of silt and/or gravel, with one exception which is a very slightly muddy sandy gravel. The mineral... More composition of sediments in nine samples is predominantly quartz, while five samples contain more than 50 % calcite. After quartz and calcite, feldspars are the most common minerals. Microplastic analysis revealed a high microplastic load in all three bays. Sea depth did not affect the abundance of microplastic pieces. The main sources of microplastic pollution are tourism and industry. Less

• Keywords: Mikroplastika; zagaĊenje; karbonati; granulometrija; pijesak; Lopar
• Keywords (english): Microplastics; pollution; carbonates; granulometry; sand; Lopar
• Language: croatian
• URN:NBN: urn:nbn:hr:217:018261
• Study programme: Title: Environmental Geology; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni magistar/magistra geologije (sveučilišni magistar/magistra geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-02-03 08:48:02