Toxicity of Paraquat and Diquat Aerosols Generated by a Size-selective Cyclone: Effect of Particle Size Distribution

摘要

The toxicity of paraquat and diquat aerosols to several species has been investigated. In order to obtain an atmosphere of `respirable' particles, an atomizer has been constructed with an upper cut-off of size by a cyclone separator, and with a calibrated reservoir to enable the concentration output to be estimated by inspection.