Publication detail

DSC study on the influence of PET microplastics on abiotic processes in soil

FOJT, J. DENKOVÁ, P. KUČERÍK, J.

Original Title

Type

abstract

Language

English

Original Abstract

The ecotoxicological and health adverse effects of microplastics are examined worldwide, however only few studies focuses on impact of these particles on abi-otic properties of soil organic matter (SOM) [1]. Disruption of soil physical and chemical structure not only can endanger soil organisms, but it also can lower the agricultural crop yields and landscape water reserves [2]. Selected abiotic soil in-dicators were determined for soil contaminated with PET microplastics to evalu-ate their effect on soil quality. The peat was chosen as a model soil due to the high content of SOM. Prior to the measurement, the peat was wetted and dried under three different relative humidities to assure the conditions variability typi-cal for arid areas. Differential Scanning Calorimetry (DSC) was used to measure evaporation enthalpy of water from soil, stability of water molecule bridges stabil-ity (WaMB) and lipids melting enthalpy. Also, water holding capacity was deter-mined. We have found that PET microplastics decrease evaporation enthalpy (strength of water binding) and soil lipids crystallites melting enthalpy (i.e. their concentration) for each relative humidity, WaMB and water holding capacity of SOM were different for each humidity. These results implicate that conventional microplastics change the SOM supramolecular structure and negatively effect the interaction between water and soil, which may have an adverse effect on reten-tion of water in landscape. Acknowledgement: The financial support of projects FCH-S-21-7398 and Kvalitní interní granty VUT EF19_073/0016948 of Ministry of Education, Youth and Sports are acknowledged.

Keywords

Microplastics, Soil, DSC, PET, Soil organic matter

Authors

FOJT, J.; DENKOVÁ, P.; KUČERÍK, J.

Released

30. 8. 2021

Publisher

Wydawnictwo Naukowe „Akapit”

Location

Krakow

ISBN

978-83-65955-52-4

Book

e-book of abstracts 17th International Congress on Thermal Analysis and Calorimetry

Edition

Pages from

Pages to

Pages count

URL

https://ictac2020.jordan.pl/upload/ICTAC-2020-Sponsorzy/_e-Book-of-Abstracts_ICTAC2020.pdf

BibTex

@misc{BUT172370,
  author="Jakub {Fojt} and Pavla {Denková} and Jiří {Kučerík}",
  title="DSC study on the influence of PET microplastics on abiotic processes in soil",
  booktitle="e-book of abstracts 17th International Congress on Thermal Analysis and Calorimetry",
  year="2021",
  series="1.",
  pages="94--94",
  publisher="Wydawnictwo Naukowe „Akapit”",
  address="Krakow",
  isbn="978-83-65955-52-4",
  url="https://ictac2020.jordan.pl/upload/ICTAC-2020-Sponsorzy/_e-Book-of-Abstracts_ICTAC2020.pdf",
  note="abstract"
}