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Titolo:
Measuring change in sterol input to estuarine sediments
Autore:
Reeves, AD; Patton, D;
Indirizzi:
Univ Dundee, Dept Geog, Dundee DD1 4HN, Scotland Univ Dundee Dundee Scotland DD1 4HN Dept Geog, Dundee DD1 4HN, Scotland Westlakes Sci Consulting Ltd, Moor Row CA24 3NL, Cumbria, England Westlakes Sci Consulting Ltd Moor Row Cumbria England CA24 3NL a, England
Titolo Testata:
PHYSICS AND CHEMISTRY OF THE EARTH PART B-HYDROLOGY OCEANS AND ATMOSPHERE
fascicolo: 9, volume: 26, anno: 2001,
pagine: 753 - 757
SICI:
1464-1909(2001)26:9<753:MCISIT>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEWAGE POLLUTION; COASTAL WATERS; ORGANIC-MATTER; FECAL STEROLS; TAY ESTUARY; COPROSTANOL; SCOTLAND; ADJACENT; MARKERS; VENICE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Reeves, AD Univ Dundee, Dept Geog, Dundee DD1 4HN, Scotland Univ Dundee Dundee Scotland DD1 4HN Dundee DD1 4HN, Scotland
Citazione:
A.D. Reeves e D. Patton, "Measuring change in sterol input to estuarine sediments", PHYS CH P B, 26(9), 2001, pp. 753-757

Abstract

In complex estuarine environments suites of sterols can be used to define autochtonous and allochtonous sources of organic matter and to identify biological processes occurring in situ. Coprostanol is a major faecal sterol present in human waste (40%-60% of total faecal sterols excreted). As raw sewage is the primary source of this sterol, its determination is an effective measure of the degree of untreated sewage contamination. Mean concentrations of sterols in mug.g(-1) dry sediment are reported for the Tay Estuary. Ratios of coprostanol/cholesterol, coprostanol/epicoprostanol and the 5 beta/(5 beta + 5 alpha) stanol index were used to assess and cross-validate sterol sources. These results have a special significance in that the disposal of raw sewage is being phased-out in north-east Scotland. Our study will therefore act as a record, showing the degree of contamination during discharge of raw sewage. Adherence to the EC Urban Waste Water Directive 1991 (91/271/EEC) by the Scottish Environmental Protection Agency and the North ofScotland Water Authority, means that all sewage sludge should receive primary treatment. This work establishes a baseline against which reduction in sedimentary sterol concentrations can be measured. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 15:07:27