AGASP-II ARCTIC HAZE AEROSOL CHARACTERISTICS - INFLUENCE OF VOLCANIC-ERUPTION EMISSIONS

Possible intrusion of eruption material from the 1986 eruptions of Aug ustine volcano into Arctic Haze measurements is considered by comparin g haze samples with samples collected directly in the eruption plume. Based on aerosol particle size distribution, particle characteristics, and and relative locations of the eruption plume and the haze samplin g flight paths it is concluded that intrusion might have occurred duri ng three of the haze flights cited here, but only to a very slight ext ent, affecting only the larger size particles which constitute a few p ercent of the total haze aerosol mass.