Hydrogen sulfide safety

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Hydrogen Sulfide Safety

• What is H2S?• Colorless (transparent) gas• Heavier than air and tends to accumulate in low-lying areas• POISONOUS = PARALYZE THE BREATHING SYSTEM/CAN KILL IN

MINUTES!!!!!!!!• Highly toxic and Very corrosive• Rotten Egg – smell

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Hydrogen Sulfide Safety

• What is H2S?• Colorless (transparent) gas• Heavier than air and tends to accumulate in low-lying areas• POISONOUS. Paralyzes the breathing system. Can kill in minutes!• Highly toxic and very corrosive• Rotten egg smell

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Hydrogen Sulfide Safety

P.E.L. = Permissible Exposure LimitDefined as the maximum concentration you can be exposed to in an 8-hour period, 40 hours per week,

without respirator problems.P.E.L. FOR H2S: 10ppm

S.T.E.L. = Short-Term Exposure LimitBased on a 15-minute time period

S.T.E.L. FOR H2S: 15ppm

I.D.L.H. = Immediately Dangerous to Life and HealthI.D.L.H. = 100ppm and above

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Hydrogen Sulfide Safety

• Effects of H2S• Target Organs

• Olfactory nerves, lungs, eyes, brain, respiratory control• Entry into the body

• Ingestion, injection, skin absorption, inhalation• Symptoms

• Respiratory irritation, coughing • Headache, dizziness, fatigue• Burning eyes, sore throat• Loss of sense of smell

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• Monitoring in Amundson 381

Hydrogen Sulfide Safety

Personal monitor

Wall-mount monitor

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• H2S Adsorption setup

Hydrogen Sulfide Safety