Boev, Ivan and Mirakovski, Dejan and Lazarova, M and Arianit, Reka and Boev, Blazo (2019) Determination of the presence of nano-plastic in bottled drinking water in the Republic of Macedonia by applying the SEM-EDX method. In: II Kongres geologa Bosne i Hercegovine sa međunarodnim učešćem, 2-4 Oct 2019, Laktaši, BiH.
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Abstract
The material presents the preliminary results of the testing for the presence of micro plastic (nano-particles) in the bottled drinking water in Macedonia by applying the method SEM-EDX. The term plastic refers to any synthetic or semi-synthetic polymer with thermo-plastic or thermal characteristics, which can be synthesized from hydrocarbons or biomass. The production of plastic mass exponentially increases with the increase in its application, from 1 million tons in 1945 to over 300 million tons in 2014. Some of the characteristics of plastic arising from the very process of its production can pose a problem in the environment. Its low weight contributes to its spread over very large distances, while at the same time it is resistant to the processes of surface degradation. These characteristics are a consequence of its chemical structure. In many cases, this incoherent hydrocarbon chain structure may be food for a particular type of microorganisms. The plastic is also fragmented into small particles by means of photo-oxidative mechanisms). These small micro particles or nano-particles of plastic can be found in many parts of the environment (water, soil, food) and they very easily pass through the gastrointestinal tract. The increase in the production of plastic is also associated with the increased environmental pollution. The first reports date from the early 1970s and they are mainly about the pollution in the world's oceans, and more recently plastic contamination has been reported in freshwater lakes, inland seas, rivers, wetlands and organisms from plankton to whales (and almost all species in-between). With the increased presence of pollution in the external environment, more and more researchers are examining the presence of plastic in various foods. Fish, shells, beer and sea salt are among those most investigated. A study of pollution of tap water with plastic has been conducted at a global level (a total of 159 samples from seven geographic regions, covering five continents).
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | nano plastic, scanning electronic microscopy, drinking water |
| Subjects: | Natural sciences > Chemical sciences Natural sciences > Earth and related environmental sciences Natural sciences > Other natural sciences |
| Divisions: | Faculty of Natural and Technical Sciences |
| Depositing User: | Biljana Kosturanova |
| Date Deposited: | 15 Nov 2019 11:57 |
| Last Modified: | 21 Jan 2020 09:40 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/22873 |
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