Hydrogen Sulfide
100
True or false? Normal background levels of hydrogen sulfide are 0.00011-0.00033.
True.
200
What are 2 side effects of exposure to hydrogen sulfide levels above 100 ppm?
Loss of smell, coughing, eye irritation, drowsiness, and eventually death after 48 hours.
300
Hydrogen Sulfide is a by-product of what?
Organic decaying matter/sewage sludge/atmosphere / soils






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