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Biogenic emissions in the Mediterranean area

Objective

To quantify the emission rates of selected reactive trace gases from vegetation to the atmosphere in the Mediterranean Basin.


The BEMA project will focus on those trace gas species that take an active part in tropospheric photochemistry, especially reactive volatile organic compounds and reactive oxygenated species.

The core of the study will be a series of intensive field measurement campaigns conducted at a minimum of three sites in France, Italy and Spain. Both emission fluxes and the ambient concentrations of the primary compounds and their reaction products will be determined.

The field measurement campaigns will be complemented by a series of other activities, including the identification of the major vegetation types in the mediterranean Basin, intercomparison exercises, laboratory experiments to identify emitted species and hydrocarbon reaction products.


Emission and concentration data obtained from these and other sites will be extrapolated to allow an estimation of the emission and concentration of these trace gases from vegetation in the entire Mediterranean Basin. Comparisons will be made with anthropogenic concentrations.

These data will be of value for the parameterisation of tropospheric chemistry models and in particular will allow assessment of the role of these compounds to ozone formation and consumption. Without such data the effects of proposed EC emission control strategies on ozone formation cannot be predicted for the photochemically active Mediterranean region.

The project is related to a first phase 1994-1995, mostly devoted to the measuring campaigns; a second is foreseen for 1996-97, to complete the in-field measurements and to scale-up the experimental data.

A preliminary measuring exercise of 15 days with the participation of all 13 laboratories involved has been performed at Castelporziano near Rome in June 1993. The exercise was successful in providing information on the test site and in tuning the BEMA objectives.

Funding Scheme

CSC - Cost-sharing contracts
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Coordinator

NATIONAL RESEARCH COUNCIL OF ITALY
Address
Unical-polifunzionale
87036 Rende
Italy

Participants (11)

CENTRO DE INVESTIGACIONES ENERGETICAS, MEDIAMBIENTALES Y TECNOLOGICAS
Spain
Address
22,Avenida Complutense 22
28040 Madrid
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Germany
Address
Kreuzeckbahnstrasse 19
82467 Garmisch-partenkirchen
GSF - FORSCHUNGSZENTRUM FUER UMWELT UND GESUNDHEIT GMBH
Germany
Address
Ingolstaedter Landstrasse 1
85764 Neuherberg
INSTITUTE OF HEALTH CARLOS III
Spain
Address
Calle Sinesio Delgardo 6
28029 Madrid
Institut National Polytechnique de Toulouse
France
Address
118 Route De Narbonne
31077 Toulouse
LUDWIG-MAXIMILIANS UNIVERSITY OF MUNICH
Germany
Address
Theresienstra?e 37
80333 Munchen
MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.
Germany
Address
Saarstraße 23
55020 Mainz
NATIONAL CENTRE FOR SCIENTIFIC RESEARCH 'DEMOKRITOS'
Greece
Address
Aghia Paraskevi, Attikis
15310 Athens
UNIVERSITY OF LANCASTER
United Kingdom
Address
Bailrigg
LA1 4YQ Lancaster /High Bantham
UNIVERSITY OF ROME "LA SAPIENZA"
Italy
Address
2,Piazzale Aldo Moro 5
00185 Roma
Université de Grenoble I (Université Joseph Fourier)
France
Address
1 Rue François Raoult
38000 Grenoble