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Leaching of phthalate acid esters from plastic mulch films and their degradation in response to UV irradiation and contrasting soil conditions. / Viljoen, Samantha J.; Brailsford, Francesca L.; Murphy, Daniel, V et al.
Yn: Journal of Hazardous Materials, Cyfrol 443, Rhif part B, 130256, 05.02.2023.

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Viljoen SJ, Brailsford FL, Murphy DV, University M, Chadwick DR, Jones DL. Leaching of phthalate acid esters from plastic mulch films and their degradation in response to UV irradiation and contrasting soil conditions. Journal of Hazardous Materials. 2023 Chw 5;443(part B):130256. Epub 2022 Hyd 27. doi: 10.1016/j.jhazmat.2022.130256

Author

Viljoen, Samantha J. ; Brailsford, Francesca L. ; Murphy, Daniel, V et al. / Leaching of phthalate acid esters from plastic mulch films and their degradation in response to UV irradiation and contrasting soil conditions. Yn: Journal of Hazardous Materials. 2023 ; Cyfrol 443, Rhif part B.

RIS

TY - JOUR

T1 - Leaching of phthalate acid esters from plastic mulch films and their degradation in response to UV irradiation and contrasting soil conditions

AU - Viljoen, Samantha J.

AU - Brailsford, Francesca L.

AU - Murphy, Daniel, V

AU - University, Murdoch

AU - Chadwick, David R.

AU - Jones, Davey L.

PY - 2023/2/5

Y1 - 2023/2/5

N2 - Phthalate acid esters (PAEs) are commonly used plastic additives, not chemically bound to the plastic that migrate into surrounding environments, posing a threat to environmental and human health. Dibutyl phthalate (DBP) and di(2-ethylhexyl) phthalate (DEHP) are two common PAEs found in agricultural soils, where degradation is attributed to microbial decomposition. Yet the impact of the plastic matrix on PAE degradation rates is poorly understood. Using 14C-labelled DBP and DEHP we show that migration from the plastic matrix into soil represents a key rate limiting step in their bioavailability and subsequent degradation. Incorporating PAEs into plastic film decreased their degradation in soil, DBP (DEHP) from 79% to 21% (9% to

AB - Phthalate acid esters (PAEs) are commonly used plastic additives, not chemically bound to the plastic that migrate into surrounding environments, posing a threat to environmental and human health. Dibutyl phthalate (DBP) and di(2-ethylhexyl) phthalate (DEHP) are two common PAEs found in agricultural soils, where degradation is attributed to microbial decomposition. Yet the impact of the plastic matrix on PAE degradation rates is poorly understood. Using 14C-labelled DBP and DEHP we show that migration from the plastic matrix into soil represents a key rate limiting step in their bioavailability and subsequent degradation. Incorporating PAEs into plastic film decreased their degradation in soil, DBP (DEHP) from 79% to 21% (9% to

KW - Chemical additives

KW - 14C labelled PAE

KW - Plastic pollution

KW - Biodegradation

KW - Bioremediation

U2 - 10.1016/j.jhazmat.2022.130256

DO - 10.1016/j.jhazmat.2022.130256

M3 - Article

VL - 443

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

IS - part B

M1 - 130256

ER -