SO2 IN AIR

Objective

Community Directive 80/779/EEC specifies maximum permissible levels of sulphur dioxide in the ambient air.
Intercomparisons organized by DG XI in support of the implementation of this Directive have shown differences in excess of 10 % between central laboratories and in excess of 30 % between network monitors. The aim of the project was to improve the analytical technique and agreement between results.

STATUS

In the first intercomparison the values obtained ranged from 78 to 94 nmol/mol. In the final stage the sampling procedure had been improved (dead volume minimised, length of sampling line minimised, sufficient equilibration time). All laboratories agreed to within a range of 4 nmol/mol.

Programme(s)

• FP2-BCR 4 - Research and development programme (EEC) in the field of applied metrology and chemical analysis (Community Bureau of Reference - BCR), 1988-1992

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

L'Air Liquide Belge

Address

Schelle
Belgium

Participants (9)

BOC Ltd

United Kingdom

Address

24 Deer Park Road
SW19 3UF London

Bundesgesundheitsamt

Germany

Address

Corrensplatz 1
14195 Berlin

European Communities - Commission of the European Communities - Joint Research Centre (JRC)

Italy

Address

Via E. Fermi 1
21020 Ispra

LABORATOIRE NATIONAL D'ESSAIS

France

Address

Rue Gaston Boissier 1
75724 Paris

Messer-Griesheim GmbH

Germany

Address

Duisburg

Risoe National Laboratory

Denmark

Address

Roskilde

SOCIETA ITALIANA ACETILENE E DERIVATI SPA

Italy

Address

Via San Bernardino 92
Bergamo

UMWELTBUNDESAMT

Germany

Address

Bismarckplatz 1
14191 Berlin

Van Swinden Laboratorium

Netherlands

Address

Delft