ETS PM2.5 PM10 Pubs Ultrafine particles |
= Environmental Tobacco Smoke = Particulate matter with an aerodynamic diameter of 2.5 µm = Particulate matter with an aerodynamic diameter of 10 µm = Public houses, licensed for the sale of alcohol = Particles in the size range 1 × 10–9m to 1 × 10–6m |