Heavy rail / Urban light rail

Tunnel air quality – occupational hazards

Monitor air quality in tunnels during construction or maintenance work.

Objectives

  • Continuously monitor gas concentrations (O2, CO/CO2, NOx, SO2, H2S) and check that threshold limit values during construction work are not exceeded (alerts)
  • Control occupational exposure to chemical agents (diesel particulates, respirable dust, crystalline silica, metals, etc.)
  • Check air renewal in tunnels

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Test
facilities

  • Gas detectors
  • Anemometer
  • Individual sampling probes

Our
references

Satisfied customers

SNCF
TSO
RATP
COLAS Rail
MARUB

Norms

- French Labour Code -

- French circular of 9 May 1985 -

Regarding the technical review of decrees 84-1093 and 84-1094 of 7 December 1984

- French orders of 8 and 9 October 1987 -

- LAB REF 27 -