Letno poročilo 2005

Laboratorij za kemometrijo
Laboratory of Chemometrics
Sledljivost in izvor hrane (Traceability and the
origin of food). Opisano delo je bilo septembra
2005 predstavljeno na sestanku skupine v
Bruslju v Belgiji.
Na podro~ju ocenjevanja kemikalij smo skupaj
z Zavodom za zdravstveno varstvo Maribor
spro`ili pobudo za spremljanje dolo~enih
pesticidov v vodi. V L03 smo naredili temeljit
literaturni pregled, medtem ko so v ZZVMB sredi
leta 2005 za~eli z meritvami. Za bolj{e
poznavanje vplivov biocidov in herbicidov na
zdravje ljudi se je sodelavka udele`ila bazi~nega
izobra`evanja, ki poteka v okviru slovensko -
nizozemskega bilateralnega projekta “Risk assessment
of chemicals with focus on biocides”,
ki je bil sklenjen med Uradom Republike
Slovenije za kemikalije in Royal Haskoning,
Nizozemska. Obdelane so bile naslednje
tematike: Ocenjevanje izpostavljenosti za
poklicne in nepoklicne uporabnike biocidov
(november 2004), Toksikologija (januar 2005),
Ekotoksikologija (februar 2005), ter Izpostavljenost
za delavca in uporabnika ter ocena
tveganja (junij 2005).
Sodelavcec, ki je bil od 1. marca do 31.
decembra 2005 gostujo~i znanstvenik v
evropskem Zdru`enem raziskovalnem centru
(Senior Scientist Visitor in European Chemical
Bureau, Institute for Health and Consumer Protection,
Joint Research Centre, Ispra, Italija),
nam je omogo~il sodelovanje v diskusijah na
ravni evropske regulatorne politike za podro~je
ocenjevanja kemikalij. Na evropskem trgu je
pribli`no 100.000 registriranih kemikalij.
Fizikalno - kemijski, toksikolo{ki in ekotoksikolo{ki
podatki, skratka podatki, ki
omogo~ajo oceno tveganja, so znani le za
majhen del teh kemikalij. Kot temelj skupne
kemijske politike Evropska Komisija predlaga
REACH, to je transparenten sistem za registracijo,
evaluacijo in avtorizacijo kemikalij.
REACH zahteva zbiranje in sistematsko urejanje
podatkov za obstoje~e in nove kemikalije. Pred
izvajalce so postavljene tri glavne naloge: (i)
dolo~itev prioritet za testiranje za obstoje~e
kemikalije, (ii) klasifikacija in ozna~evanje
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stone, limestone, shale). In total, there were 9
sample sites and 180 sampling locations (for
top-soil). In addition to the topsoil samples, the
subsoil samples at 9 randomly chosen sampling
locations within each site were obtained from
locations lower below the surface. In total, there
were 45 subsoil-sampling locations. Preprocessing
of data included the normalization
of the data sets and the incorporation of the
key for missing data. The sample labels were
also determined, following different parameters
such as sampling sites regarding lithology or
geographic area, and concentrations of the elements
in the soil. So pre-processed data were
mapped and classified with the application of
Kohonen neural networks. The work was presented
on the 3rd WP6 meeting in September
2005 in Brussels, Belgium. In the frame of this
project one of the member of our laboratory
attended the first annual meeting in April 2005
in York, U.K. The meeting was the official launch
of TRACE with the main subject “Traceability
and the origin of food”.
Regarding assessment of chemicals, we initiated
together with the the Institute of Public
Health Maribor, Slovenia the initiative for the
monitoring of certain pesticides in water. The
literature search was acomplished in L03, while
the IPHMB started with chemical analyses. On
the ground of better knowledge about the influence
of herbicides and biocides on the human
health, our co-worker attended the training
in the frame of Slovenian - Netherlands bilateral
project entitled “Risk assessment of
chemicals with focus on biocides”. This is the
project between the National Chemicals Bureau,
Slovenia, and the Royal Haskoning, Netherlands.
The topics of the training were: General
aspects of exposure assessment (November
2004), Toxicology (January 2005), Ecotoxicology
(February 2005), and Exposure estimation for
the worker and the user along with the risk
assessment (June 2005).
One of the members (M. Vra~ko) has been appointed
as Senior Visiting Scientist at the European
Chemical Bureau, Institute for Health and