Objective TO CORRELATE THE DATA ON THE DISTRIBUTION OF HYDROCARBONS IN SOME TYPES OF AIR MASSESS TO THE AMOUNTS OF ACIDITY WHICH ARE OBSERVED IN THESE AIR MASSES. THE RESEARCH PROJECT IS IMPLEMENTED IN COLLABORATION WITH CERL ( PROP. 07.429). A PROGRAMME OF AIRCRAFT FLIGHTS IS FORESEEN DURING WHICH AIR COMPOSITION MEASUREMENTS IS MADE DOWNWIND FROM A SPECIFIC POINT AND AREA SOURCES OF THE U.K. THE FOLLOWING HYDROCARBONS ARE DETERMINED USING A GAS CHROMATOGRAPH EQUIPPED WITH A FLAME IONISATION DETECTOR : C2 H6, C2 H4, C2H2, C3H6, I C4 H10, NC4 H10, IC5H12, N C5H12, N C6H14, BENZENE AND TOLUENE. MEASUREMENTS ARE MADE OF VARIOUS HALOCARBON SPECIES USING A GAS CHROMATOGRAPH EQUIPEPED WITH AN ELECTRON CAPTURE DETECTOR. DATA ARE COLLECTED ON SPECIFIC SITUATIONS SUCH AS THE DEVELOPMENT OF PLUMES OVER LAND AND PLUMES FROM URBAN AND STATIONARY SOURCES OVER THE SEA. Programme(s) PRE-ENVPROT 3C - Sectoral research and development programme (EEC) in the field of environment (environmental protection and climatology) - indirect and concerted actions - Environmental protection -, 1981-1985 Topic(s) Data not available Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator United Kingdom Atomic Energy Authority EU contribution No data Address 353,Harwell OX11 0RA Didcot - Oxfordshire United Kingdom See on map Total cost No data