Atmosphere Chemistry and Climate Change Network (AC3) Station: Carnsore Point (CRP) Coordinates: 52° 10' N, 6° 21' W Measurement Height: 5m Site Type: rural background Instrumentation: TSI Model 3775 Condensation Particle Counter Data range: Number of Particles (lower cut off 4 nanometres) Units: particles/cm3 Time: UTC One hour average Instrument serial number : TBC Calibration info: Calibrated Annually Data level. Data has QA'd and all spurious/zero/negative values have been removed.