TRANSFER-FUNCTION OF POLYCYCLIC AROMATIC-HYDROCARBONS FROM THE ATMOSPHERE TO THE POLAR ICE .1. DETERMINATION OF ATMOSPHERIC CONCENTRATIONS AT DYE-3, GREENLAND

Preliminary measurements of the gaseous and particulate fractions of a tmospheric PAH have been performed in winter and spring during the DGA SP program on the Greenland Ice Sheet. The results indicate the absenc e of gaseous fraction (<0.5 pg m(-3)) associated with very low concent rations restricted to heavy compounds only (18-200 pg m(-3) for total PAH) in the particulate phase; the repartition of the various PAH is v ery stable from one sample to another, indicative of near-complete rea ction allowed by long transport time. Nevertheless, discrimination of the specific signal from the different sources involved may have been impaired by the long sampling time used.