Name: Hourly SMPS Measurements for Mace Head, 2019 EPA Funded Contact Person: Kirsten Fossum Contact email: kirstennicole.fossum@nuigalway.ie Site: Mace Head Measurement Site lat/lon: 53.327494, -9.902066 Measurement vertical extent: 10 m Description: Data from a (homemade) scanning mobility particle sizer, taken at an RH < 35% and averaged hourly. The data includes a total number concentration (N) of particles per cubic cm on the range of 20-500 nm dry electrical mobility diameter (dm), as well as the normalized binned concentration as dN/dlog(dm). Time: UTC.