Mikroplastika u morskom okolišu

undergraduate thesis

• Title (english): Microplastics in marine environments
• Author: Rita Guić
• Mentor: Petar Kružić (mentor)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2016, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology

Abstract

Korištenje plastike neprestano raste od sredine dvadesetog stoljeća, a s njime i količina mikroplastike u morima diljem svijeta. Plastika sve češće zamjenjuje druge materijale zbog svojih povoljnih svojstava, ali se zbog nepotpune razgradnje nakuplja u morskom okolišu u obliku krupnog plastičnog otpada te čestica promjera manjeg od 5 milimetara, mikroplastike. Mikroplastika u morima ima štetan utjecaj na živi svijet: ulazi u probavni sustav morskih organizama, a toksični spojevi koje na sebe privlači nakupljaju se i prenose kroz hranidbene lance te s vremenom dolaze do čovjeka. Istraživanja su pokazala proporcionalan porast mikroplastike i gustoće naseljenosti određenog područja. Potrebno je provesti standardizaciju u načinu prikupljanja podataka kako bi bilo moguće praćenje stanja u vremenu i prostoru. Potrebna su dodatna istraživanja mogućnosti bioakumulacije toksičnih tvari u mikroplastici. Posljednjih je godina problem mikroplastike sve zamjećeniji i poznatiji. Međutim, još su mnoga područja neistražena, pogotovo ona vezana uz vrlo sitne čestice, nanoplastiku, koja je potencijalno još veća opasnost za živi svijet od krupnije mikroplastike.

Abstract (english)

The use of plastic has constantly been increasing since the middle of the 20th century. As a consequence, the amount of microplastic in the marine environment worldwide has also risen. Nowadays, plastic more often replaces other materials because of its good qualities. Its negative feature is incomplete degradation, which causes accumulation of big particles in marine environment, as well as small ones (<5 mm) called microplastic. Microplastic in seas has a negative impact on marine biota: it enters the digestive system, causing the accumulated toxins to be transferred through the food chains and eventually end up in humans. Studies demonstrated a positive relationship between microplastic and human population density. There is a need for the standardization of data collecting, which is important for the evaluation of spatial and temporal trends. Additional researches of contaminant bioaccumulation are also necessary. Lately the microplastic issue has been more acknowledged. Still, many questions arise and wait to be solved, especially those connected with the smallest particles called nanoplastics, which are potentially even bigger threat for the environment.

• Keywords: mikroplastika; morski okoliš
• Keywords (english): microplastics; marine environment
• Language: croatian
• URN:NBN: urn:nbn:hr:217:785971
• 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
• Created on: 2018-01-02 10:29:54