{"id":28163,"date":"2021-03-12T13:53:44","date_gmt":"2021-03-12T12:53:44","guid":{"rendered":"https:\/\/oneearth-oneocean.com\/2021\/03\/12\/sorption-of-organic-compounds-by-aged-polystyrene-microplastic-particles-2\/"},"modified":"2023-07-05T07:56:34","modified_gmt":"2023-07-05T05:56:34","slug":"sorption-of-organic-compounds-by-aged-polystyrene-microplastic-particles-2","status":"publish","type":"post","link":"https:\/\/oneearth-oneocean.com\/en\/international-marine-litter-database-en-en\/2021\/sorption-of-organic-compounds-by-aged-polystyrene-microplastic-particles-2\/","title":{"rendered":"Sorption of organic compounds by aged polystyrene microplastic particles"},"content":{"rendered":"

Thorsten H\u00fcffer, Anne-Katrin Weniger, Thilo Hofmann,<\/p>\n

Sorption of organic compounds by aged polystyrene microplastic particles,<\/p>\n

Environmental Pollution, Volume 236, May 2018, Pages 218-225, ISSN 0269-7491,<\/p>\n

Abstract:
\nMicroplastics that are released into the environment undergo aging and
\ninteract with other substances such as organic contaminants.
\nUnderstanding the sorption interactions between aged microplastics and
\norganic contaminants is therefore essential for evaluating the impact of
\nmicroplastics on the environment.
\nThere is little information available on how the aging of microplastics affects
\ntheir sorption behavior andother properties.
\nWe have therefore investigated the effects of an
\naccelerated UV-aging procedure on polystyrene microplastics, which are
\nused in products such as skin cleaners and foams. Physical and chemical
\nparticle characterizations showed that aging led to significant surface
\noxidation and minor localized microcrack formation.
\nSorption coefficients of organic compounds by polystyrene microplastics following
\naging were up to one order of magnitude lower than for pristine
\nparticles. Sorption isotherms were experimentally determined using a
\ndiverse set of probe sorbates covering a variety of substance classes
\nallowing an in-depth evaluation of the poly-parameter linear free-energy
\nrelationship (ppLFER) modelling used to investigate the contribution of
\nindividual molecular interactions to overall sorption. The ppLFER
\nmodelling was validated using internal cross-validation, which confirmed
\nits robustness.
\nThis approach therefore yields improved estimates of the interactions between
\naged polystyrene microplastics and organic contaminants.<\/p>\n

https:\/\/drive.google.com\/open?id=1lxQ23XpLlVjn4Tcs1Odvch1jFM2xetr5<\/a>
\nhttps:\/\/doi.org\/10.1016\/j.envpol.2018.01.022<\/a>.<\/p>\n

(https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0269749117349977)<\/p>\n","protected":false},"excerpt":{"rendered":"

Thorsten H\u00fcffer, Anne-Katrin Weniger, Thilo Hofmann, Sorption of organic compounds by aged polystyrene microplastic particles, Environmental Pollution, Volume 236, May 2018, Pages 218-225, ISSN 0269-7491, Abstract: Microplastics that are released into the environment undergo aging and interact with other substances such as organic contaminants. Understanding the sorption interactions between aged microplastics and organic contaminants is therefore essential for evaluating the impact of microplastics on the environment. There is little information available on how the aging of microplastics affects their sorption behavior andother properties. We have therefore investigated the effects of an accelerated UV-aging procedure on polystyrene microplastics, which are used in products such as skin cleaners and foams. Physical and chemical particle characterizations showed that aging led to significant surface oxidation and minor localized microcrack formation. Sorption coefficients of organic compounds by polystyrene microplastics following aging were up to one order of magnitude lower than for pristine particles. Sorption isotherms were experimentally determined using a diverse set of probe sorbates covering a variety of substance classes allowing an in-depth evaluation of the poly-parameter linear free-energy relationship (ppLFER) modelling used to investigate the contribution of individual molecular interactions to overall sorption. The ppLFER modelling was validated using internal cross-validation, which confirmed its robustness. This approach therefore yields improved estimates of the interactions between aged polystyrene microplastics and organic contaminants. https:\/\/drive.google.com\/open?id=1lxQ23XpLlVjn4Tcs1Odvch1jFM2xetr5 https:\/\/doi.org\/10.1016\/j.envpol.2018.01.022. (https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0269749117349977)<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2222],"tags":[2471,2472,2473,2474,2475],"yoast_head":"\nSorption of organic compounds by aged polystyrene microplastic particles - One Earth - One Ocean e. V.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/oneearth-oneocean.com\/en\/international-marine-litter-database-en-en\/2021\/sorption-of-organic-compounds-by-aged-polystyrene-microplastic-particles-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sorption of organic compounds by aged polystyrene microplastic particles - One Earth - One Ocean e. V.\" \/>\n<meta property=\"og:description\" content=\"Thorsten H\u00fcffer, Anne-Katrin Weniger, Thilo Hofmann, Sorption of organic compounds by aged polystyrene microplastic particles, Environmental Pollution, Volume 236, May 2018, Pages 218-225, ISSN 0269-7491, Abstract: Microplastics that are released into the environment undergo aging and interact with other substances such as organic contaminants. Understanding the sorption interactions between aged microplastics and organic contaminants is therefore essential for evaluating the impact of microplastics on the environment. There is little information available on how the aging of microplastics affects their sorption behavior andother properties. We have therefore investigated the effects of an accelerated UV-aging procedure on polystyrene microplastics, which are used in products such as skin cleaners and foams. Physical and chemical particle characterizations showed that aging led to significant surface oxidation and minor localized microcrack formation. Sorption coefficients of organic compounds by polystyrene microplastics following aging were up to one order of magnitude lower than for pristine particles. Sorption isotherms were experimentally determined using a diverse set of probe sorbates covering a variety of substance classes allowing an in-depth evaluation of the poly-parameter linear free-energy relationship (ppLFER) modelling used to investigate the contribution of individual molecular interactions to overall sorption. The ppLFER modelling was validated using internal cross-validation, which confirmed its robustness. This approach therefore yields improved estimates of the interactions between aged polystyrene microplastics and organic contaminants. https:\/\/drive.google.com\/open?id=1lxQ23XpLlVjn4Tcs1Odvch1jFM2xetr5 https:\/\/doi.org\/10.1016\/j.envpol.2018.01.022. 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