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Evidence for the migration of steroidal estrogens through river bed sediments

Evidence for the migration of steroidal estrogens through river bed sediments
Evidence for the migration of steroidal estrogens through river bed sediments
Estrogenic substances discharged from wastewater treatment plants have been detected in surface sediments of receiving waters, but little is known of their vertical migration through buried sediments and their potential to contaminate subsurface waters. The vertical profiles of estrogenic chemicals were investigated in sediment cores at an alluvial freshwater site (Ditchling) and a clay-rich estuarine site (Lewes), both of which are downstream of wastewater discharges into the River Ouse (Sussex, U.K.). Estrone (E1) was the predominant estrogen detected in surface and buried sediments at both sites and was detected in undisturbed clay sediments >120 years old. Profiles of E1 at Ditchling were characterized by a prominent subsurface peak of E1 at the alluvium/clay interface (?15 cm) at a concentration (28.8 ± 6.0 ng/g of dry wt) that was 9-fold higher than in the surface sediment. In contrast, a steady downcore decline in E1 concentrations was observed in the clay-rich Lewes core. This work provides the first in situ evidence of estrogen migration through river bed sediments and reveals that movement of estrogens through unconsolidated sediment can result in penetration to the underlying substrata and therefore the potential for groundwater contamination.
0013-936X
4299-4304
Labadie, Pierre
b5ccbc9f-3e25-42ff-bab2-b5bfd81d8814
Cundy, Andrew B.
994fdc96-2dce-40f4-b74b-dc638286eb08
Stone, Kevin
8c4248cc-5703-4af7-ad9b-d9bdff0fec17
Andrews, Michael
9d8bdd60-9fe1-4a98-aa53-2f9b7a6dcaac
Valbonesi, Sam
6bb5f13f-3940-4596-b6f7-ecda8a6a5c28
Hill, Elizabeth M.
e14d0a6b-312e-4f25-8b76-fa26abc352d8
Labadie, Pierre
b5ccbc9f-3e25-42ff-bab2-b5bfd81d8814
Cundy, Andrew B.
994fdc96-2dce-40f4-b74b-dc638286eb08
Stone, Kevin
8c4248cc-5703-4af7-ad9b-d9bdff0fec17
Andrews, Michael
9d8bdd60-9fe1-4a98-aa53-2f9b7a6dcaac
Valbonesi, Sam
6bb5f13f-3940-4596-b6f7-ecda8a6a5c28
Hill, Elizabeth M.
e14d0a6b-312e-4f25-8b76-fa26abc352d8

Labadie, Pierre, Cundy, Andrew B., Stone, Kevin, Andrews, Michael, Valbonesi, Sam and Hill, Elizabeth M. (2007) Evidence for the migration of steroidal estrogens through river bed sediments. Environmental Science & Technology, 41 (12), 4299-4304. (doi:10.1021/es063062j).

Record type: Article

Abstract

Estrogenic substances discharged from wastewater treatment plants have been detected in surface sediments of receiving waters, but little is known of their vertical migration through buried sediments and their potential to contaminate subsurface waters. The vertical profiles of estrogenic chemicals were investigated in sediment cores at an alluvial freshwater site (Ditchling) and a clay-rich estuarine site (Lewes), both of which are downstream of wastewater discharges into the River Ouse (Sussex, U.K.). Estrone (E1) was the predominant estrogen detected in surface and buried sediments at both sites and was detected in undisturbed clay sediments >120 years old. Profiles of E1 at Ditchling were characterized by a prominent subsurface peak of E1 at the alluvium/clay interface (?15 cm) at a concentration (28.8 ± 6.0 ng/g of dry wt) that was 9-fold higher than in the surface sediment. In contrast, a steady downcore decline in E1 concentrations was observed in the clay-rich Lewes core. This work provides the first in situ evidence of estrogen migration through river bed sediments and reveals that movement of estrogens through unconsolidated sediment can result in penetration to the underlying substrata and therefore the potential for groundwater contamination.

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More information

Published date: 19 May 2007
Organisations: Geochemistry

Identifiers

Local EPrints ID: 399467
URI: http://eprints.soton.ac.uk/id/eprint/399467
ISSN: 0013-936X
PURE UUID: e5554079-ffb0-458d-908a-3734916480b6
ORCID for Andrew B. Cundy: ORCID iD orcid.org/0000-0003-4368-2569

Catalogue record

Date deposited: 16 Aug 2016 14:23
Last modified: 10 Dec 2019 01:33

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