Observation data of particle number concentrations (PNC) on the airfield of Berlin-Tegel Airport (TXL) during its closure. PNC was recorded with a Grimm EDM465 UFPC, including meteorological parameters measured with a Lufft WS600-UMB. observations between 20. October 2020, 14:44 LT and 3 December 2020, 03:03 LT time interval: 5 seconds air inlet of CPC at 1.4 m above ground weather sensor at 1.3 m above the ground. Location: 52,561 North, 13,320 East Variables: particle number concentration in particles/cm³ (pnc) wind speed in m/s (ws) wind direction in ° (wdir) air temperature in °C (temp) relative humidity in % (rh) air pressure in hPa (pressure) precipitation in mm (pcpn) date as local time phase: whether the airport was still open ("TXL_open") or already closed ("TXL_closed") no data available between between 15.11.2020 02:15:00 and 18.11.2020 11:14:55 due to hardware issues

This data are part of a study supported by the German Federal Ministry of Education and Research (BMBF) under grant FKZ 01LP1912B (Urban Climate under Change, Phase II, Module 3DO + M).