Dust Monitoring

In general terms we draw a known volume of air using a sampling pump through a suitable sampling medium. For particulates and fumes it would be a filter paper or suitable solid media and for gases and vapours through a sorbent tube or sometimes an impinger/bubbler. A typical sampling train for personal monitoring would look like this with the sampler mounted in the breathing zone.For grab samples of gases, a gas sampling bag is used, e.g. a Tedlar bag. It is also possible to measure background exposure via Diffusive or Passive sampling. These are sealed badges which are opened for sampling, worn on the person for the recommended time, sealed and sent off for analysis