Sorption and Mobility of Charged Organic Compounds: How to Confront and Overcome Limitations in Their Assessment br

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F22%3A00126105" target="_blank" >RIV/00216224:14310/22:00126105 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acs.est.2c00570" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.est.2c00570</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.est.2c00570" target="_blank" >10.1021/acs.est.2c00570</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sorption and Mobility of Charged Organic Compounds: How to Confront and Overcome Limitations in Their Assessment br

Popis výsledku v původním jazyce

Permanently charged and ionizable organic com-pounds (IOC) are a large and diverse group of compoundsbelonging to many contaminant classes, including pharmaceuticals,pesticides, industrial chemicals, and natural toxins. Sorption andmobility of IOCs are distinctively different from those of neutralcompounds. Due to electrostatic interactions with natural sorbents,existing concepts for describing neutral organic contaminantsorption, and by extension mobility, are inadequate for IOC.Predictive models developed for neutral compounds are based onoctanol-water partitioning of compounds (Kow) and organic-carbon content of soil/sediment, which is used to normalizesorption measurements (KOC). We revisit those concepts and theirtranslation to IOC (DowandDOC) and discuss compound and soilproperties determining sorption of IOC under water saturatedconditions. Highlighting possible complementary and/or alternative approaches to better assess IOC mobility, we discussimplications on their regulation and risk assessment. The development of better models for IOC mobility needs consistent andreliable sorption measurements at well-defined chemical conditions in natural porewater, better IOC-, as well as sorbentcharacterization. Such models should be complemented by monitoring data from the natural environment. The state of knowledgepresented here may guide urgently needed future investigations in thisfield for researchers, engineers, and regulators.

Název v anglickém jazyce

Sorption and Mobility of Charged Organic Compounds: How to Confront and Overcome Limitations in Their Assessment br

Popis výsledku anglicky

Permanently charged and ionizable organic com-pounds (IOC) are a large and diverse group of compoundsbelonging to many contaminant classes, including pharmaceuticals,pesticides, industrial chemicals, and natural toxins. Sorption andmobility of IOCs are distinctively different from those of neutralcompounds. Due to electrostatic interactions with natural sorbents,existing concepts for describing neutral organic contaminantsorption, and by extension mobility, are inadequate for IOC.Predictive models developed for neutral compounds are based onoctanol-water partitioning of compounds (Kow) and organic-carbon content of soil/sediment, which is used to normalizesorption measurements (KOC). We revisit those concepts and theirtranslation to IOC (DowandDOC) and discuss compound and soilproperties determining sorption of IOC under water saturatedconditions. Highlighting possible complementary and/or alternative approaches to better assess IOC mobility, we discussimplications on their regulation and risk assessment. The development of better models for IOC mobility needs consistent andreliable sorption measurements at well-defined chemical conditions in natural porewater, better IOC-, as well as sorbentcharacterization. Such models should be complemented by monitoring data from the natural environment. The state of knowledgepresented here may guide urgently needed future investigations in thisfield for researchers, engineers, and regulators.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ENVIRONMENTAL SCIENCE &amp; TECHNOLOGY

ISSN

0013-936X

e-ISSN

—

Svazek periodika

56

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

4702-4710

Kód UT WoS článku

000793137500002

EID výsledku v databázi Scopus

2-s2.0-85127956487