📚 Guide by Safety Mom · Allstar Enviro Safety — The Hydrogen Sulfide General Industry is an online workplace safety course delivered by Safety Mom · Allstar Enviro Safety, Calgary’s Energy Safety Canada Authorized Training Provider. Self-paced, mobile-friendly, same-day certificate upon exam completion. Available across Canada.
🔗 Related Safety Mom courses & guides: H2S Alive Calgary · What is H2S gas? · Oil Sands Safety Certs · Instructor: Arliss Levine, CRSP, CHSC
HYDROGEN SULFIDE FOR GENERAL INDUSTRY ONLINE COURSE OVERVIEW
Workers who could potentially to be exposed to hydrogen sulfide (H2S) in excess of ACGIH’s Threshold Limit Values are required to receive annual H2S safety awareness training. Therefore, this online course is intended for employees who work with or around H2S.
This course will familiarize you with the hazards of H2S, detection methods, and best responses to H2S exposure and release. It helps satisfy the training requirements in 29 CFR 1910.1200 for those who work with or around hazardous chemicals, 29 CFR 1910.119 for those who work with or around highly hazardous chemicals, and ANSI Z390.1-2006 for those who work with or around H2S.
HYDROGEN SULFIDE FOR GENERAL INDUSTRY ONLINE COURSE TOPICS
- Understanding the Dangers
- What Is H2S
- H2S in the Environment
- Dangerous Properties
- Sources of Exposure
- Who May Be Exposed
- Exposure Routes
- Health Effects
- Exposure Regulations
- Training Requirements
- Exposure Limits
- API Classifications
- Regulations for Visitors
- General Protection
- Evaluate Exposure
- Control Exposure
- Metal Fatigue
- Burning, Flaring, and Venting
- Confined Spaces
- Personal Protection
- Respiratory PPE
- Special PPE Considerations
- PPE Maintenance and Inspection
- Your Escape Route
- Make a Prediction
- Wind Direction
- Elevation
- H2S Emergencies
- Emergency Action Plans
- Emergency Response Procedures
- Fighting Fires
- First Aid
- Treatment and Post-Exposure
HYDROGEN SULFIDE FOR GENERAL INDUSTRY ONLINE COURSE DURATION: Approximately 75 minutes
HYDROGEN SULFIDE FOR GENERAL INDUSTRY TESTING: Testing conducted in this online Hydrogen Sulfide for General Industry course is designed to reinforce the information presented. A mark of 80% must be achieved in order to receive a certificate of completion. Participants are able to repeat the course twice if the pass mark is not achieved.
HYDROGEN SULFIDE FOR GENERAL INDUSTRY CERTIFICATE OF COMPLETION: Upon successful completion of this online course, a certificate of completion will be available to download and print.
HYDROGEN SULFIDE FOR GENERAL INDUSTRY ONLINE COURSE PREVIEW:
Additional Safety Knowledge
Understanding H2S — The Basics
Hydrogen sulphide (H2S) is a colourless, flammable gas heavier than air with a characteristic rotten-egg odour at low concentrations. It is produced naturally by anaerobic decomposition of organic matter and is present in sour oil and gas reservoirs, sewer systems, wastewater treatment, pulp and paper operations, tanneries, and manure storage pits. In Alberta’s upstream oil and gas industry it is the single most common atmospheric hazard.
Exposure Concentrations and Effects
- 0.01–1.5 ppm: detectable by smell — the classic rotten-egg odour.
- 10 ppm: Alberta occupational exposure limit (OEL) 8-hour time-weighted average.
- 15 ppm: Alberta 15-minute short-term exposure limit (STEL).
- 50–100 ppm: eye irritation, respiratory discomfort, olfactory fatigue (sense of smell disappears — a dangerous false-safety signal).
- 100 ppm: NIOSH Immediately Dangerous to Life or Health (IDLH) limit.
- 500–700 ppm: loss of consciousness within minutes, respiratory paralysis, death likely without immediate rescue.
- 1,000 ppm and above: single-breath knockdown — instant collapse and death.
Detection and Personal Monitoring
Every worker in a potential H2S atmosphere must carry a personal 4-gas monitor calibrated for H2S detection. Standard alarm setpoints are 10 ppm (low alarm) and 15 ppm (high alarm). Bump testing is required before every shift; full calibration every 30 days minimum. Fixed detection systems with visual and audible alarms are required at facilities with continuous H2S risk.
Hydrogen Sulfide General Industry — Emergency Response
The first response to an H2S alarm is not to investigate — it is to evacuate upwind and uphill (H2S is heavier than air). Muster at the designated point, complete roll call, and notify the incident commander. Rescue attempts require Self-Contained Breathing Apparatus (SCBA), a trained rescue partner, and a documented rescue plan. Attempting rescue without SCBA is the leading cause of secondary H2S fatalities.
Content reviewed by Arliss Levine, CRSP, CHSC — lead safety instructor at Safety Mom · Allstar Enviro Safety Calgary, an Energy Safety Canada Authorized Training Provider.
