The SMP4 Joint Venture were contracted to construct the TELT (Lyon to Turin) tunnel.
The SMP4 scope comprised of 9km of TBM and 3km of drill and blast works. The drill and blast section of the project was anticipated to produce an undesirable Diesel Particulate Matter (DPM) load and therefore represented a potentially unreasonable risk to workers. Previously, the monitoring regime consisted of real-time fixed gasses, monthly personal monitoring for crystalline silicosis and weekly air flow surveys. Based on their unknown anticipated DPM load, the OH&S department set out to investigate monitoring solutions which resulted in the purchase of the Pinssar solution based on its ability to produce real-time DPM data.