H₂S Presentation [Autosaved]

[Audio] Safety Training Series Hydrogen Sulfide (h₂s) Awareness Essential Protocols for Site Safety.

[Audio] A G E N D A Lungs with solid fill Magnifying glass with solid fill Microscope with solid fill Definition Detection Effects What Is H₂s ?: We will explore the chemical properties of Hydro Sulfide, identifying it as a colourless, flammable, and highly toxic gas. This section explains the “Vapor Density” of H₂S, detailing why it is heavier than air and where it typically accumulates on a worksite.

[Audio] A G E N D A Lungs with solid fill Magnifying glass with solid fill Microscope with solid fill Definition Detection Effects Monitoring & Alarm Protocols: This section outlines the technology required for early detection, focusing on the maintenance and use of personal gas monitors. We will establish the "Breathing Zone" standard for sensor placement and the mandatory response actions for all audible alarms..

[Audio] Lungs with solid fill Magnifying glass with solid fill Microscope with solid fill Definition Detection Effects Toxicology & Physiological Impact : This module covers the immediate health risks of exposure, ranging from respiratory irritation to total paralysis. We will specifically examine Olfactory Fatigue, explaining why the loss of smell is a critical indicator of rising, lethal concentrations..

[Audio] Understanding the Hazard Chemical Name: Hydrogen Sulfide (H₂S). Common Names: Sour Gas, Sewer Gas, Stink Damp. Physical Properties: Colourless, flammable, and heavier than air (collects in low areas). The "Rotten Egg" Myth: It smells like rotten eggs at low levels, but deadens your sense of smell (olfactory fatigue) at high levels..

[Audio] How H₂s Affects The Body Olfactory Fatigue: At high concentrations, H₂S paralyzes the sense of smell; you cannot smell the "rotten eggs" when it is most lethal. The "Knockdown" Effect: High concentrations cause immediate respiratory paralysis and unconsciousness. Key Data Points: 10 ppm: Occupational Exposure Limit (8 hours). 100 ppm: I-D-L-H (Immediately Dangerous to Life and Health). 700 plus ppm: Immediate "Knockdown" (unconsciousness) and death..

[Audio] Detection and Survival Protocols Monitoring: Always wear personal electronic monitors within your "breathing zone" (9-10 inches from mouth/nose). Evacuation: If an alarm sounds, hold your breath and move immediately. Wind Direction: Move Upwind and Crosswind (perpendicular to the wind) to escape the gas plume. Rescue: Never attempt a rescue without a Self Contained Breathing Apparatus (S-C-B-A-)..

[Audio] Conclusion & Q&A Safety is a shared responsibility. "See it, Smell it, or Hear it (the alarm)? Evacuate immediately.”.