Publication detail

Influence of Poly-3-hydroxybutyrate Micro-Bioplastics and Polyethylene Terephthalate Microplastics on the Soil Organic Matter Structure and Soil Water Properties

FOJT, J. DENKOVÁ, P. BRTNICKÝ, M. HOLÁTKO, J. ŘEZÁČOVÁ, V. PECINA, V. KUČERÍK, J.

Original Title

Influence of Poly-3-hydroxybutyrate Micro-Bioplastics and Polyethylene Terephthalate Microplastics on the Soil Organic Matter Structure and Soil Water Properties

Type

journal article in Web of Science

Language

English

Original Abstract

Adverse effects of microplastics on soil abiotic properties have been attributed to changes in the soil structure. Notably, however, the effects on the supramolecular structure of soil organic matter (SOM) have been overlooked, despite their key role in most soil properties. This work accordingly investigated the influence of plastic residues at various concentrations on the SOM supramolecular structure and soil water properties. To model plastic residues of micro-bioplastics, spherical or spherical-like poly-3-hydroxybutyrate (PHB) was used, while poly-ethylene terephthalate (PET) was used as a model of conventional microplastics. The results suggest that both types of plastic residues affect SOM properties, including physical stability (represented by water molecule bridges), water binding (represented by decreased desorption enthalpy or faster desorption), and the stability of SOM aliphatic crystallites. The results further showed that the polyester-based microplastics and micro-bioplastics affected the SOM abiotic characteristics and that therefore the observed effects cannot be attributed solely to changes in the whole soil structure. Notably, similar adverse effects on SOM were observed for both tested plastic residues, although the effect of PHB was less pronounced compared to that of PET.

Keywords

PET microplastics; PHB micro-bioplastics; DSC; water; soil

Authors

FOJT, J.; DENKOVÁ, P.; BRTNICKÝ, M.; HOLÁTKO, J.; ŘEZÁČOVÁ, V.; PECINA, V.; KUČERÍK, J.

Released

11. 7. 2022

Publisher

AMER CHEMICAL SOC

Location

WASHINGTON

ISBN

1520-5851

Periodical

Environmental Science and Technology

Year of study

56

Number

15

State

United States of America

Pages from

1

Pages to

11

Pages count

11

URL

https://pubs.acs.org/doi/10.1021/acs.est.2c01970

BibTex

@article{BUT178492,
  author="FOJT, J. and DENKOVÁ, P. and BRTNICKÝ, M. and HOLÁTKO, J. and ŘEZÁČOVÁ, V. and PECINA, V. and KUČERÍK, J.",
  title="Influence of Poly-3-hydroxybutyrate Micro-Bioplastics and Polyethylene Terephthalate Microplastics on the Soil Organic Matter Structure and Soil Water Properties",
  journal="Environmental Science and Technology",
  year="2022",
  volume="56",
  number="15",
  pages="1--11",
  doi="10.1021/acs.est.2c01970",
  issn="1520-5851",
  url="https://pubs.acs.org/doi/10.1021/acs.est.2c01970"
}