Measurement of Fume
Welding fume consists of particulate fume and pollutant gases called gaseous fume. The amount and constituents of fume vary for different welding and cutting process. Welding fume must therefore be measured and analysed to assess the risk to health.
Welding fume is made up of particulate fume and pollutant gases. The content of the fume and its concentration will vary from one application to the next. Some common components of fume are far more toxic than others and so present a much greater potential to cause damage.
In order to assess the risk presented by welding fume in any particular situation, it is necessary to know precisely what is in the fume and how much fume welders and other workers are being exposed to. To do this, it is necessary to take samples of fume, to measure the concentration and content.