A study of the priority substances of the Water Framework Directive ...

..:::::::::: diuron
..:::36
Diuron was not detected. In blue mussels
(Mytilus edulis) from seven stations in Southern
Norway, diuron was found at two, with the
highest concentration in Vrengen. Cod (Gadus
Morhua) liver from eight stations was also analyzed
but diuron was not detected.
Fresh water and groundwater
Two fresh water recipients were investigated,
but diuron was not detected. Diuron was neither
detected in six fresh water sediment samples
from Southern Norway nor in samples of
perch (Perca fluriatilis) and pike (Esox lucius)
from four localities in Southern Norway.
Other
Seepage from seven landfills where analyzed,
and diuron was found in three samples. In five
samples of clean seepage from landfills, diuron
was detected in one sample. In treated wastewater
from four municipal plants, diuron was
found in one. Diuron was not detected in two
samples of municipal sewage sludge.
Hot-spots
Vrengen in Vestfold may be a hot spot for
diuron.
Need for further screening and monitoring
An extensive screening on diuron has been performed
to follow-up the results from the 2004
screening.
Analysis
The analysis of diuron is often part of multi pesticide
packages offered by several laboratories.
A study of the priority substances of the Water Framework Directive
TA-2140/2005
Methods
The methods are based on direct extraction with
an organic solvent (sediment and biota) or solid
phase extraction (SPE), clean-up with SPE and
separation and quantification with LC-based
methods: LC/MS or LC/UV.
Synergy with other analyses
Sample extraction and clean-up may be co-ordinated
with the analysis of other herbicides as
isoproturon, linuron or chlortoluron.
References
� CIRCA, Royal Haskoning: Fact sheets on
production, use and release of priority substances
in the WFD, Diuron, Final version 31
January 2001
� HSDB Diuron
� EXTOXNET
http://extoxnet.orst.edu/pips/diuron.htm
� Mattilsynet Omsetningsstatistikk for plantevernmidler
1974 -2004
� Jordforsk rapport nr. 17/04. Oversikt over
påviste pesticider i perioden 1995-2002.
� Pesticides News No. 67, March 2005, page
20-21
� Statens forurensningstilsyn: Kartlegging av
utvalgte nye organiske miljøgifter i 2004.
Bromerte flammehemmere, perfluoralkylstoffer,
irgarol, diuron, BHT og dicofol (TA-2096/2005)
- http://www.sft.no/publikasjoner/overvaking/2096/ta2096.pdf,
accessed 23 October
2005.
� Jon Fuglestad. Phone call, 12.12.2005.
Diuron results, 2005 follow up study.