Õhuproovid kogutakse hingamistsoonist filtrile, mis kogub vähemalt 95% osakesi aerodünaamilise diameetriga 0,3 µm, kasutades pumpa, mille tootlikkus on vähemalt 1 l/min.
The following guidelines should be met as far as practicable: ... - in general, the inlet sampling point should be between 1,5 m (the breathing zone) and 4 m above the ground. Higher positions (up to 8 m) may be necessary in some circumstances. Higher siting may also be appropriate if the station is representative of a large area ...
