Solvents typically release a vapor that can be harmful if inhaled in enough quantity.Ĭoncentration of gases, particulates and vapors are expressed in parts per million (PPM) or milligrams per cubic meter of air mg/m 3) of micrograms per cubic meter (µg/m 3). As a part of your job, you are required to clean your work with a solvent to remove contaminants.Crystalline silica, a component of sand, is a particulate where you would need to know the concentration. During the modification or addition to your place of work you are mixing dry concrete with water and a cloud of dust envelops you while mixing with water.If you operate a gasoline or propane powered forklift, the measurement of carbon monoxide (a gas) would be something that needs to be known.It has been described as those in occupational health who quantify what a safety professional qualifies. Provides general information about hydrogen sulfide, its health effects, and specific medical treatments for hydrogen sulfide exposure.Air sampling is a part of the discipline of industrial hygiene. Agency for Toxic Substances and Disease Registry (ATSDR), (April 2006). Medical Management Guidelines for Hydrogen Sulfide.More detailed technical information on hydrogen sulfide, health effects, chemical and physical properties, potential for human exposure, and analytical methods. Agency for Toxic Substances and Disease Registry (ATSDR), (July 2006). Toxicological Profile for Hydrogen Sulfide.Answers the most frequently asked health questions about hydrogen sulfide. Describes how NIOSH determined hydrogen sulfide Immediately Dangerous to Life and Health (IDLH). National Institute for Occupational Safety and Health (NIOSH), (Revised August 16, 1996). IDLH Documentation for Hydrogen Sulfide.Provides physical descriptions, exposure limits, measurement methods, personal protection and sanitation, first aid, respirator recommendations, exposure routes, symptoms, target organs, and other information about hydrogen sulfide. National Institute for Occupational Safety and Health (NIOSH) Publication No. NIOSH Pocket Guide to Chemical Hazards.Provides a listing of NIOSH and related resources on hydrogen sulfide. National Institute for Occupational Safety and Health (NIOSH) Workplace Safety and Health Topic. Provides the important safety precautions for hydrogen sulfide. Provides a concise list of industrial sources, symptoms and health effects of exposure to hydrogen sulfide, and OSHA requirements for the protection of workers. The following resources provide more information on the safety and health effects of hydrogen sulfide: The effect called knockdown (rapid unconsciousness) often results in falls that can seriously injure the worker.If clothing becomes wet, avoid ignition sources, remove the clothing and isolate it in a safe area to allow it to evaporate. In addition to exposure to hydrogen sulfide in the air, exposure to liquid hydrogen sulfide can cause "blue skin" or frostbite.In addition, hydrogen sulfide gas burns and produces other toxic vapors and gases, such as sulfur dioxide. Hydrogen sulfide is a highly flammable, explosive gas, and can cause possible life-threatening situations if not properly handled.The explosive range of hydrogen sulfide in air is 4.5 to 45.5 percent. That is, they may have difficulty breathing at levels lower than people without asthma. People who have asthma may be more sensitive to hydrogen sulfide exposure. Problems with the cardiovascular system have also been reported at exposures above permissible exposure limits. What about longer term health effects? Some people who breathed in levels of hydrogen sulfide high enough to become unconscious continue to have headaches and poor attention span, memory, and motor function after waking up. Rapid unconsciousness, "knockdown" or immediate collapse within 1 to 2 breaths, breathing stops, death within minutes. Serious damage to the eyes in 30 minutes. Pulmonary edema may occur from prolonged exposure. Marked conjunctivitis and respiratory tract irritation after 1 hour. Loss of smell (olfactory fatigue or paralysis). Gradual increase in severity of symptoms over several hours. Altered breathing, drowsiness after 15-30 minutes. May cause digestive upset and loss of appetite.Ĭoughing, eye irritation, loss of smell after 2-15 minutes (olfactory fatigue). Slight conjunctivitis ("gas eye") and respiratory tract irritation after 1 hour. Possible fatigue, loss of appetite, headache, irritability, poor memory, dizziness. Airway problems (bronchial constriction) in some asthma patients. Prolonged exposure may cause nausea, tearing of the eyes, headaches or loss of sleep. Above 30 ppm, odor described as sweet or sickeningly sweet. Odor threshold (when rotten egg smell is first noticeable to some).
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