When solids and liquids, such as mineral acids, ammonia, cyanides, and mercury, are heated, many poisonous gases are released.
Among these poisonous gases, are mineral acids, ammonia, cyanides and mercury.
Other types of poisonous gases are specially manufactured for war purposes.

Poisonous gases affect the body in various ways, and many are potentially fatal.

What are the Symptoms of Gas Poisoning?

Carbon Monoxide Poisoning

Carbon monoxide, and mixtures that contain it, prevent the blood from carrying oxygen to tissues;

Hydrogen Sulfide Poisoning

Hydrogen sulfide causes respiratory paralysis;

Carbon Tetrachloride Poisoning

Carbon tetrachloride damages the liver and kidneys;

Carbon Disulfide Poisoning

Carbon disulfide produces nerve damage and ultimately causes paralysis and psychoses;

Tear Gases Poisoning

Tear gases such as xylyl bromide, severely irritate the eyes, nose, and throat;

Nerve Gases Poisoning

Various nerve gases prevent the proper functioning of nerve impulses;

Chlorine and Phosgene Poisoning

lung irritant gases, such as chlorine and phosgene, attack the eyes, nose, throat, and lungs;

Vesicant gases Poisoning

Vesicant gases, such as mustard gas and lewisite gas (containing arsenic), cause blisters and ulcers on the skin;

Nauseant gases Poisoning

Nauseant gases, such as chloropicrin, induce vomiting;

Nose irritant gases Poisoning

Nose irritant gases, such as diphenylchlorarsine, cause pain, sneezing, depression, and sometimes vomiting.

How do people come in contact with poisonous gases?

  • Carbon monoxide is the most poisonous gas likely to be present in domestic surroundings. For example, when an automobile engine has been left running in an enclosed space, such as a garage, carbon monoxide can accumulate to toxic levels.
  • Carbon tetrachloride is used in dry cleaning.
  • Hydrogen sulfide is a poisonous gas produced in some chemical processes.
  • Tear gases are used by police and military personnel.
  • Carbon disulfide is used in the rubber industry and in making rayon.