Method of determination of the flow of emission of particles carried in the atmosphere, from a zone of emission of particles and trap has particles for the implementation of this

摘要

Pollen or spores are collected in a series of containers (15), containing liquid. The containers are moved stepwise by a conveyor (6), so one container at a time is open to the atmosphere, the remainder being covered (17). The open container is slightly raised by a ramp (19) and particles fall into it by gravity.