CARBON MONOXIDE IN THE WORKPLACE
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365-BSA-01-IMOT © 2024, Workplace Safety & Prevention Services (WSPS)
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Table 3: Industrial Hygiene Aspects of Carbon Monoxide (630-08-01)
Odour Threshold None
Colour None
Taste None
Irritating Properties None
Concentration that is Immediately Dangerous to Life and Health
("parts per million" – ppm)
Source: IDLH Concentrations: Carbon Monoxide.
https://www.cdc.gov/niosh/npg/npgd0105.html
1200 ppm
Time Weighted Average (8 hrs.)
Source: www.ontario.ca/page/current-occupational-exposure-limits-ontario-
workplaces-under-regulation-833
25 ppm
CHECK THE SAFETY DATA SHEET (SDS) FOR SPECIFIC DATA
WSPS.CA
