Personal exposure of ultraviolet-B irradiance (UV-B) was measured by small portable dosimeter (ELUV-14) at Koldewey-Station in Ny-Ålesund, from May 15 to August 15, 1999. While ten persons carried those dosimeters global irradiance was simultaneously measured by a UV-B spectral radiometer. The highest erythemal weighted global UV-B dose was 2200 J/m2 recorded on June 8, 1999. The personal related maximum value was about 345 J/m2 on May 25, 1999. This corresponds to approximately 23% of the global dose recorded at the same day.