“…An earlier study (Morse and Setterlind, 1950) indicated that exposures ranging from 23 to 970 mg/m 3 may be linked to lethal results in people. The LCt 50 for arsine gas is estimated to be 5,000 mg × min/m 3 (Seto, 2011). Within 1-24 h after inhalation at a high concentration, persons become ill and may experience hematuria (the voiding of dark, bloody urine).…”