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Staff
Consultancy director: Frans Vossen
Director (non-executive): Ton van Harreveld 
Senior consultants: Anouk Snik - van den Burg
Consultants: Dasha Noordegraaf
Junior consultants: Hans Lammen, Leontine de Senerpont Domis
Manager of field operations: Merijn Appelman
Field technicians: Danielle Doorn, Hado Steen, Dick Vertelman
Head of olfactometry: Anouk Snik - van den Burg
Laboratory coordinator: Jan Van Galen
Finance coordinator and administration: Anja Ruijmgaard - op de Heyde
 Frans
Vossen, Consultancy Director PRA Odournet BV.
Frans Vossen joined Project Research Amsterdam BV in February
1989 as a senior odour consultant. He expanded the consultancy
activities with great energy since, and is now a partner and
director of PRA Odournet BV.
Frans main focus is on his clients, and as the senior consultant
he is in charge of all industrial odour consultancy. In this
position he is responsible for acquisition, design and coordination
of major odour studies. These studies involve all aspects, including
emission measurements, source characterisation, dispersion modelling,
direct annoyance surveys using telephone polling, field panel
assessments, emission reduction programmes and systems choice
for odour reduction systems.
Through conducting large number of odour projects over the years,
he has acquired a unique in-depth knowledge on odour management
for industries including: rendering, meat packaging and slaughtering,
municipal and industrial water treatment, petroleum refining,
food processing, rayon manufacture, breweries, composting, mushroom
growing, sludge processing etc.
Before joining PRA he worked for five years as an environmental
consultant at an engineering firm, Witteveen en Bos Raadgevend
Ingenieurs BV, in charge of air quality studies. A major part
of his work there consisted of odour studies. In this position
he directed a considerable number (20 to 25) of studies on water
treatment facilities, under the supervision of professor J.
H. L. A. de Graaff, Technical University of Delft.
Frans Vossen, born in 1958, trained as a biologist at the University
of Utrecht. He obtained his Doctorandus title, equivalent to
an M.Sc., in 1984.
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Mr
Ton van Harreveld, chairman, Odournet group of companies.
Ton van Harreveld is founder and chairman of the Odournet group.
His operational activities include consultancy on policy issues,
international marketing, quality control and R&D supervision.
Odournet specialises in all aspects of environmental odour annoyance
and conducts many hundreds of odour related surveys each year.
Several thousands of odour samples are collected and analysed
in two accredited Odournet laboratories to provide supporting
data. Odournet employs a staff of about 30 in four European
countries.
Odournet develops and markets instruments and associated software
for odour sampling and measurement. Olfaktomat-n olfactometers
are installed in laboratories worldwide.
Ton was closely associated with developing the Dutch NV2820
olfactometry standard and is convenor for the working group
CEN/TC264/WG2 ‘Dynamic Olfactometry’ that has now
finalised the European CEN standard prEN 13725 Air Quality –
Measurement of odour concentration using dynamic olfactometry.
As a senior consultant he recently completed major scientific
review reports to support policy development for livestock odours
by the Irish EPA and the H4 Horizontal IPPC Guidance on Odour
for the Environment Agency (UK). Previously he headed a team
to prepare a feasibility study for developing a method for odour
annoyance potential measurement for the Dutch government.
Ton and his family now live in Barcelona, Spain, where he directs
the smallest company in the group, Odournet S.L.
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