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REFERENCE MATERIALS FOR THE ANALYSIS OF THE AQUATIC ENVIRONMENT

Objective



The analysis of water is important to detect a source of pollution, to establish its pathways for monitoring purposes. The direct analysis of water is studied in projects 264 (rain water and trace element pollutants in sea and estuarine water) and 297 (components in surface and drinking water). Direct analysis, however, presents only the actual state of water quality. Pollutant concentrations may change rapidly depending upon the nature of the source (peak effluent emissions vs. steady effluent conditions), the nature of the water (strong currents have increased pollutant levels by sediment resuspension); the ionic strength, etc.
To monitor changes over a longer period of time (weeks-years) indicator organisms are frequently analysed. These organisms (e.g. plankton, aquatic plants, shellfish) are in prolonged contact with water passing their sedentary place (mussels) or with moving water (plankton).
Sediments are taken when it is necessary to study long or short term history of pollution. The stratigraphic pattern of pollution in a core of a sediment represents the fluctuation of pollution in time at a certain place.
Therefore, it was decided to certify the contents of trace element pollutants (As, Cd, Cu, Hg, Pb, Se, Zn) in some indicator organisms and representative types of sediment. The materials finally chosen are: sea lettuce, mussel tissue, plankton and river-, lake and estuarine sediments.

RESULTS

The sea lettuce (CRM 279) has been certified for As, Cd, Cu, Pb, Se and Zn (Report EUR 11185, 1988). Mussel tissue (CRM 278) was certified for As, Cd, Cr, Cu, Fe, Hg, Mn, Pb, Se, Zn (Report EUR 11838, 1988). Three sediment estuarine sediments (CRM 277), lake sediment (CRM 280) and river sediment (CRM 320) were certified for As, Cd, Cr, Cu, Hg, Ni, Pb, Sc, Se, Zn (Report EUR 11850, 1988).

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

Arbeitsgr. Anal. und Umwelt

Participants (24)

Aristotelian Univ.
Greece
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
France
Address
3, Rue Michel Ange
Centre Recherche & Contr-Eaux
France
Delta Inst. Hydrobiol. Res.
Netherlands
Energie Onderzoekcentr.
Netherlands
FEDERAL INSTITUTE FOR MATERIAL RESEARCH AND TESTING
Germany
Address
87,Unter Der Eichen 87
12205 Berlin
GSF - FORSCHUNGSZENTRUM FUER UMWELT UND GESUNDHEIT GMBH
Germany
Address
Ingolstaedter Landstrasse 1
85764 Neuherberg
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE (INRA)
France
Inst. fuer Soil Fertility
Netherlands
Isotopcentrum
Denmark
Joint Research Centre (JRC)
Italy
Kernforschungsanlage
Germany
MACAULAY LAND USE RESEARCH INSTITUTE
United Kingdom
RIVM
Netherlands
RUG, INS
Belgium
Riso National Laboratory
Denmark
SCK/CEN
Belgium
TNO
Netherlands
The Agric. Inst.
Ireland
UNIVERSITA DEGLI STUDI DI PAVIA
Italy
Address

271 Pavia
UNIVERSITAET REGENSBURG
Germany
Address
Universitaetsstrasse 31
Regensburg
Univ. Instellingen
Belgium
Université de Strasbourg I (Université Louis Pasteur)
France
Address

67070 Strasbourg
Water Research Centre plc
United Kingdom
Address
Medmenham Laboratory Henley Road Medmenham
SL7 2HD Marlow