Leaching and transformation of chemical additives from weathered plastic deployed in the marine environment.

Autor: Bridson JH; Scion, Titokorangi Drive, Private Bag 3020, Rotorua 3046, New Zealand; School of Physical and Chemical Sciences, University of Canterbury, Christchurch 8041, New Zealand. Electronic address: jamie.bridson@scionresearch.com., Masterton H; Institute of Environmental Science and Research, 27 Creyke Road, Christchurch 8041, New Zealand., Theobald B; Scion, Titokorangi Drive, Private Bag 3020, Rotorua 3046, New Zealand., Risani R; Scion, Titokorangi Drive, Private Bag 3020, Rotorua 3046, New Zealand., Doake F; Institute of Environmental Science and Research, 27 Creyke Road, Christchurch 8041, New Zealand., Wallbank JA; School of Biological Sciences, University of Auckland, 3a Symonds Street, Auckland 1010, New Zealand., Maday SDM; School of Biological Sciences, University of Auckland, 3a Symonds Street, Auckland 1010, New Zealand., Lear G; School of Biological Sciences, University of Auckland, 3a Symonds Street, Auckland 1010, New Zealand., Abbel R; Scion, Titokorangi Drive, Private Bag 3020, Rotorua 3046, New Zealand., Smith DA; Scion, Titokorangi Drive, Private Bag 3020, Rotorua 3046, New Zealand., Kingsbury JM; Institute of Environmental Science and Research, 27 Creyke Road, Christchurch 8041, New Zealand., Pantos O; Institute of Environmental Science and Research, 27 Creyke Road, Christchurch 8041, New Zealand., Northcott GL; Northcott Research Consultants Limited, 20 River Oaks Place, Hamilton 3200, New Zealand., Gaw S; School of Physical and Chemical Sciences, University of Canterbury, Christchurch 8041, New Zealand.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2024 Jan; Vol. 198, pp. 115810. Date of Electronic Publication: 2023 Nov 25.
DOI: 10.1016/j.marpolbul.2023.115810
Abstrakt: Plastic pollution causes detrimental environmental impacts, which are increasingly attributed to chemical additives. However, the behaviour of plastic additives in the marine environment is poorly understood. We used a marine deployment experiment to examine the impact of weathering on the extractables profile, analysed by liquid chromatography-mass spectrometry, of four plastics at two locations over nine months in Aotearoa/New Zealand. The concentration of additives in polyethylene and oxo-degradable polyethylene were strongly influenced by artificial weathering, with deployment location and time less influential. By comparison, polyamide 6 and polyethylene terephthalate were comparatively inert with minimal change in response to artificial weathering or deployment time. Non-target analysis revealed extensive differentiation between non-aged and aged polyethylene after deployment, concordant with the targeted analysis. These observations highlight the need to consider the impact of leaching and weathering on plastic composition when quantifying the potential impact and risk of plastic pollution within receiving environments.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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