diplomsko delo
Primož Špringer (Author), Gabriela Kalčíková (Mentor)

Abstract

Mikroplastika so majhni plastični delci, ki so v okolju zelo razširjeni in lahko vplivajo na različne organizme. Vpliv mikroplastike na živali je dobro raziskan, o vplivih na rastline pa vemo zelo malo. Zato je namen diplomske naloge ovrednotiti vpliv različnih okoljsko relevantnih mikroplastik na vodno rastlino malo vodno lečo Lemna minor. Rastlino smo za sedem dni izpostavili petim različnim tipom mikroplastike, ki jih pogosto najdemo v okolju (mikroplastika iz kozmetike, sintetična vlakna, razrezana vrečka, prah bakelita, fragmenti plastenke). Ugotavljali smo tudi, kako na rastlino vplivajo naravni delci, in sicer bukov prah. Za ugotovitev, ali ima mikroplastika vpliv na rastlino, smo določali specifično hitrost rasti, izmerili dolžino korenin in izračunali povprečno specifično koncentracijo klorofila a. Iz dobljenih podatkov smo prišli do ugotovitve, da delci mikroplastike kozmetike, razrezane vrečke, praha bakelita in fragmenti plastične vrečke vplivajo na dolžino korenin, medtem ko na hitrost rasti in specifično koncentracijo klorofila ne vplivajo nobeni delci.

Keywords

mikroplastika;vplivi na okolje;vodne rastline;mala vodna leča;Lemna minor;diplomska dela;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [P. Špringer]
UDC: 504.5(043.2)
COBISS: 27970563 Link will open in a new window
Views: 541
Downloads: 132
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Other data

Secondary language: English
Secondary title: The impact of environmentally relevant microplastics on duckweed Lemna minor
Secondary abstract: Microplastics are small plastic particles, that are widely distributed in the environment and effect all organisms. Their effects on animals is well known, while there is not a lot of information about their impact on plants. Therefore, the aim of the diploma thesis is to assess the impact of environmentally relevant microplastics on an aquatic plant duckweed Lemna minor. We exposed duckweed to five different types of microplastic particles, that are commonly found in the environment (microplastic from cosmetic, synthetic fibres, pieces of plastic bag, bakelite powder, fragments of plastic bottle), in a seven-day period. We also evaluated the impact of natural particles precisely beech saw dust on plants growth. We determined the specific growth rate, measured the length of roots and calculated the specific concentration of chlorophyll a to make a conclusion if the plant is affected by microplastics. The results showed, that the presence of microplastic (microplastic from cosmetic, pieces of plastic bag, bakelite powder, fragments of plastic bottle) affects the length of roots, while the plants growth and specific concentration of chlorophylls are not affected by any particles.
Secondary keywords: duckweed;microplastic;water plants;
Type (COBISS): Bachelor thesis/paper
Study programme: 1000372
Thesis comment: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, UNI Kemijsko inženirstvo
Pages: 19 str.
ID: 12027638