1. Hydrogen sulfide safety

2. Hydrogen Sulfide Safety What is H2S? Colorless (transparent) gasColorless (transparent) gas Heavier than air and tends to accumulate in low-lying areasHeavier than air and tends to accumulate in low-lying areas POISONOUS = PARALYZE THE BREATHING SYSTEM/CAN KILL IN MINUTES!!!!!!!!POISONOUS = PARALYZE THE BREATHING SYSTEM/CAN KILL IN MINUTES!!!!!!!! Highly toxic and Very corrosive Highly toxic and Very corrosive Rotten Egg – smell Rotten Egg – smell 2

3. 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 3

4. 4 Hydrogen Sulfide Safety P.E.L. = Permissible Exposure Limit Defined 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 Limit Based on a 15-minute time period S.T.E.L. FOR H2S: 15ppm I.D.L.H. = Immediately Dangerous to Life and Health I.D.L.H. = 100ppm and above

5. 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 5

6. 6 Monitoring in Amundson 381 Hydrogen Sulfide Safety Personal monitor Wall-mount monitor

7. 7 H2S Adsorption setup Hydrogen Sulfide Safety