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Binding of waterborne pharmaceutical and personal care products to natural dissolved organic matter

Rizzuto, Simone and Ludovic Baho, Didier and Baho, Didier L. and Jones, Kevin C. and Zhang, Hao and Leu, Eva and Nizzetto, Luca (2021). Binding of waterborne pharmaceutical and personal care products to natural dissolved organic matter. Science of the Total Environment. 784 , 147208
[Research article]

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Abstract

Information on how key environmental conditions such as natural dissolved organic matter (DOM) and water pH alter the possible risks posed by pharmaceuticals (PPCPs) is still scarce. In our previous study, the presence of nat-ural DOM at high pH reduced the toxicity of a mix of waterborne PPCPs to algae. DOM-complexation and pH ef-fect on speciation of the more hydrophobic and neutral compounds of the mix was suggested to be driving this behaviour. However, the study design did not allow the verification of this hypothesis. Here, the DOM-PPCPs in-teraction at different pH was investigated for 6 PPCPs through equilibrium dialysis, under the same conditions of DOM and pH as our previous study. Association with DOM was confirmed for the more hydrophobic PPCPs at high pH. The results suggest the binding was driven by i) the presence of carboxylic groups of PPCPs, ii) high pH shifting the structural configuration of DOM, making it more suited to bind some of the PPCPs. A non-linear change of binding capacity with increasing DOM concentration was also observed among the tested PPCPs. (c) 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

Authors/Creators:Rizzuto, Simone and Ludovic Baho, Didier and Baho, Didier L. and Jones, Kevin C. and Zhang, Hao and Leu, Eva and Nizzetto, Luca
Title:Binding of waterborne pharmaceutical and personal care products to natural dissolved organic matter
Series Name/Journal:Science of the Total Environment
Year of publishing :2021
Volume:784
Article number:147208
Number of Pages:10
Publisher:ELSEVIER
ISSN:0048-9697
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
Keywords:Natural dissolved organic matter, Pharmaceuticals and personal care products, Water chemistry, Binding
URN:NBN:urn:nbn:se:slu:epsilon-p-112583
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-112583
Additional ID:
Type of IDID
DOI10.1016/j.scitotenv.2021.147208
Web of Science (WoS)000657590200015
ID Code:24753
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Aquatic Sciences and Assessment
Deposited By: SLUpub Connector
Deposited On:29 Jun 2021 13:25
Metadata Last Modified:29 Jun 2021 13:31

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