![]() Ingestion of arsine itself is unlikely because it is a gas at room temperature. Exposure to liquefied arsine (the compressed gas) can result in frostbite (NIOSH 2005). There is little information about direct toxic effects of arsine on the skin or eyes, or about absorption through the skin (AIHA 1999). In addition, they may be exposed to higher levels than adults in the same location because of their short stature and the higher levels of arsine found nearer to the ground. ![]() Initial symptoms (malaise, dizziness, nausea, abdominal pain, and dyspnea) may develop within several hours of exposure to 3 ppm of arsine (AIHA 1999).Ĭhildren exposed to the same levels of arsine as adults may receive larger doses because they have relatively greater lung surface area:body weight ratios and higher minute volumes:weight ratios. Arsine is heavier than air and hazardous concentrations may develop quickly in enclosed, poorly ventilated, or low-lying areas. Odor is not an adequate indicator of arsine's presence and does not provide reliable warning of hazardous concentrations. The odor threshold of arsine is 10-fold greater than the Occupational Safety and Health Administration (OSHA) permissible exposure limit. Inhalation is the major route of exposure. Exposure may occur when arsine gas is generated while metals or crude ores containing arsenic impurities are treated with acid (HSDB 2007). It is generally shipped in cylinders as a liquefied compressed gas (NIOSH 2005). Because arsine is nonirritating and produces no immediate symptoms, persons exposed to hazardous levels may be unaware of its presence. It has a garlic-like or fishy odor that can be detected at concentrations of 0.5 ppm and above. However, contact with liquefied arsine may result in frostbite injury.Īrsine is a colorless, flammable, and highly toxic gas. There is little information about absorption through the skin or toxic effects on the skin or eyes.
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