Hydrogen Sulfide - Hazards - Occupational Safety and Health Administration
Odor threshold (when rotten egg smell is first noticeable to some). Odor becomes more offensive at 3-5 ppm. Above 30 ppm, odor described as sweet or sickeningly sweet. Prolonged exposure may cause nausea, tearing of the eyes, headaches or loss of sleep. Airway problems (bronchial constriction) in some asthma patients.
Hydrogen sulfide - Wikipedia
Hydrogen sulfide is a chemical compound with the formula H 2 S. It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. [11]
Public Health Statement for Hydrogen Sulfide - Centers for …
Hydrogen sulfide (H 2 S) is a flammable, colorless gas that smells like rotten eggs. People usually can smell hydrogen sulfide at low concentrations in air, ranging from 0.0005 to 0.3 parts hydrogen sulfide per million parts of air (ppm). At high concentrations, a …
CDC - NIOSH Pocket Guide to Chemical Hazards - Hydrogen sulfide
Hydrosulfuric acid, Sewer gas, Sulfuretted hydrogen Colorless gas with a strong odor of rotten eggs. [Note: Sense of smell becomes rapidly fatigued & can NOT be relied upon to warn of the continuous presence of H<SUB>2</SUB>S. Shipped as a liquefied compressed gas.]
Hydrogen Sulfide - Overview - Occupational Safety and Health Administration
Hydrogen sulfide (also known as H 2 S, sewer gas, swamp gas, stink damp, and sour damp) is a colorless gas known for its pungent "rotten egg" odor at low concentrations. It is extremely flammable and highly toxic.
Hydrogen Sulfide & Health - California Air Resources Board
What is hydrogen sulfide? Hydrogen sulfide (H 2 S) is a colorless gas with the odor of rotten eggs. The most common sources of H 2 S emissions are oil and natural gas extraction and processing, and natural emissions from geothermal fields. It is also formed during bacterial decomposition of human and animal wastes, and is present in emissions ...
Hydrogen Sulfide | ToxFAQs™ | ATSDR - Centers for Disease …
Hydrogen sulfide is a flammable, colorless gas that smells like rotten eggs. People usually can smell hydrogen sulfide at low concentrations in air ranging from 0.0005 to 0.3 parts per million (ppm). It is often referred to as sewer gas or stink damp.
Hydrogen Sulfide - Evaluating and Controlling Exposure
DO NOT rely on your sense of smell to indicate the continuing presence of hydrogen sulfide or to warn of harmful levels. You can smell the "rotten egg" odor of hydrogen sulfide at low concentrations in air.
Hydrogen sulfide is a heavier-than-air, colorless gas with a sweetish taste and characteristic odor of rotten eggs (HSDB 2013). The odor threshold for hydrogen sulfide is variable and various ranges have been reported.
Medical Management Guidelines for Hydrogen Sulfide
What is hydrogen sulfide? Hydrogen sulfide is an extremely rapidly acting, highly toxic, colorless gas with a rotten-egg odor. It is produced naturally by decaying organic matter and is released from sewage sludge, liquid manure, sulfur hot springs, and natural gas.
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