Table 5

 Estimates of average personal exposure of LU staff to airborne particles

Station/LineStation staffDrivers
PM2.5 (μg/m3)PNC (particles/cm3)PM2.5 (μg/m3)PNC (particles/cm3)
Holland Park/Central752900013023000
Hampstead/Northern901400020017000
Oxford Circus/Victoria1702400018022000