The health effects of breathing in raw sewage include hydrogen sulfide poisoning, suffocation and burning which may be caused by explosions. Raw sewage is known to contain various types of toxins which react to produce gases that may easily cause health complications even though it may not immediately be apparent to people.
Reaction of household necessities, such as detergents and disinfectants, can lead to production of various gases such as hydrogen sulfide, carbon dioxide, nitrous oxide and methane. All these gases have the potential to cause some type of harm, including poisoning and explosions when they come into contact with fire. People in enclosed rooms may also suffocate if they inhale these gases for a long period of time.