Aluminum phosphide has not yet evaporated smelled specific need to determine whether it is okay according to the environment. Dry and stable environment is generally not harmful, humid environment is vice versa. 1. Dry and stable environment: generally dry and stable environment of aluminum phosphide is non-toxic, harmless, so in this case smell is fine. 2. Wet environment: Aluminum phosphide in a wet environment is easy to produce hydrogen sulfide gas, hydrogen sulfide is a highly toxic and harmful gases, after smelling the light will appear dizziness, headache, nausea, etc., the heavy will appear breathing difficulties, pulmonary edema and other symptoms. If the above symptoms are not relieved after sniffing aluminum phosphide, or accompanied by other symptoms, you should go to the hospital in time to see a doctor, and give targeted treatment after the cause is clear.