Properties
Health Effects
Protection
Wild Card
100
The classic H2S smell is usually described as smelling like what?
Rotten Eggs or Sewer
100
Give an example of a health effect of moderate exposure to H2S (50- 200 ppm)
Moderate H2S concentrations can cause more severe eye and respiratory irritation (including coughing, difficulty breathing, accumulation of fluid in the lungs), headache, dizziness, nausea, vomiting, staggering and excitability.
100
What is OSHA limit for H2S? 8 hr Time Weighted Average (TWA) ?
10 ppm
100
What percentage of P & O products have the potential to produce H2S during or after production? A. 25% B. 50% C. 75% D. 90%
D. 90%; according to P & O dept.
200
H2S is lighter than air and tends to rise slightly in buildings and rooms
False
200
Give an example of a common health effect from low level exposure to H2S (10-50 ppm)
Low H2S concentrations irritate the eyes, nose, throat and respiratory system (e.g., burning/ tearing of eyes, cough, shortness of breath). Asthmatics may experience breathing difficulties. The effects can be delayed for several hours, or sometimes several days, when working in low-level concentrations. Repeated or prolonged exposures may cause eye inflammation, headache, fatigue, irritability, insomnia, digestive disturbances and weight loss.
200
Starting at what concentration are you required to wear a half mask respirator for protection against H2S?
10 ppm
200
True T/ F H2S is an intended by-product of many reactions
True
300
What are the elements that make up H2S?
Hydrogen and Sulfur
300
What is other body parts throughtout the body are known to be affected by low level H2S exposure besides the respiratory system
joints
300
Below what PPM concentration is it safe to use a 1/2 mask respirator for protection against H2S
100
300
What does IDLH stand for?
I Do Not Like Here or Immediately Dangerous to Life or Heath
400
H2S and other gases are know to cause "olfactory fatigue" What is this?
Exposure to low levels of gas over a few minutes can over power the sense of smell and you no longer can accurately smell the gas.
400
Name a health effect related to high H2S exposure (200+ ppm)
High H2S concentrations can cause shock, convulsions, inability to breathe, extremely rapid unconsciousness, coma and death. Effects can occur within a few breaths, and possibly a single breath.
400
What is type of respiratory protection is needed for exposures above 100 ppm of H2S
Self Contained Breathing Apparatus SCBA
400
In what country has H2S exposure become a popular suicide method due to its toxic nature.
Japan, Over 200 suicides were reported in 2008 caused by H2S. Most were classified as "industrial accidents"
500
T / F H2S has a "low odor threshold" and can routinely be smelled at 0.2 - 0.5 ppm.
True
500
H2S gas works in the body similar to what other toxic gas used in chemical warefare and gas chambers?
Cyanide
500
How are H2S levels measured at Firulm?
Fixed Sensors on walls in reactor rooms and PR 1 and 2 Portable Solaris 4 Gas Meters Portable Altair Single Gas Meters
500
Name one of the the 2 ingredients used in reactions which causes the H2S to be produced
Ammonium Sulfide or Cysteine
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