A New Approach to Sampling for Particle Size and Chemical Species 'Fingerprinting' of Workplace Aerosols

摘要

A commercially-available, high-volume(28.3 Lpm) Andersen-type cascade impactor was modified in order to extend its operational range further into the range of large inhalable particles for purposes of use in an exposure assessment study in the primary nickel pro- duction industry. The modification involved incorporating study in the primary nickel pro- duction industry. The modification involved incorporating a 10-ppi(pores per inch) porous plastic foam top stage that has a wide penetration curve with a _50d_ae-value of approximately 27μm.