Hydrogen sulfide poisoning
Despite the fact that hydrogen sulfide is rare in nature, it is very common in the human environment. A person encounters hydrogen sulfide everywhere: in the home, at work, in small concentrations, this compound is even in the intestine. To avoid his presence in life is impossible, and easy to poison.
When does sulfur compound poisoning occur? Anyone has the opportunity to encounter such a substance or is it a matter of chance? And how to remove from the body of hydrogen sulfide in case of its accidental use?
How is hydrogen sulfide formed
Hydrogen sulfide is a gas with a characteristic odor. The natural compound of two parts of hydrogen and one part of sulfur is found in deep layers of seawater, in volcanic waste, in some natural sources:
- associated petroleum gases;
- natural gas.
Hydrogen sulfide is produced by prolonged protein rot. This substance is difficult to confuse with something - it has the smell of rotten eggs.
In a person's life, such a chemical compound is common.
- Hydrogen sulfide is a by-product of smelting iron, obtaining viscose and cellulose, and producing asphalt.
- It is formed in laboratories when receiving salts of silver and copper, therefore laboratory assistants have a great chance to get poisoned with hydrogen sulfide.
- This gas appears in sewage water during their purification.
- The normal content of intestinal gases in the human body is 0.1–0.5 liters from which trace concentrations fall in H2S, which is the norm and does not harm humans at all. But with an excess of protein foods and with stagnation in the digestive system, its concentration increases several times, which negatively affects not only the intestines. First aid for such hydrogen sulfide poisoning is the proper diet.
- Various sulfur compounds, including hydrogen sulfide, may be present in the dye composition.
- In medicine, this substance is widely used as a component of one of the physiotherapeutic methods of treatment - hydrogen sulfide baths.
Hydrogen sulfide baths - the benefits and harm
One of the effective physiotherapeutic methods of treatment is the use of mineral waters containing hydrogen sulfide. Depending on the concentration of the substance, they can be low, medium and strongly sulfide (from 10–50 mg / l to 250 mg / l of the substance and above). People who often resort to such help are concerned about the safety of such treatments. The benefits and harms of hydrogen sulfide baths have long been studied by health workers.
Hydrogen sulfide baths will perfectly help with many pathologies, including:
- in skin diseases;
- diseases of the nervous system;
- endocrinological pathology;
- cardiovascular processes.
Poisoning at such concentrations of the substance does not occur, but complications may occur in people with diseases of the respiratory system, pulmonary tuberculosis, after a second myocardial infarction and kidney diseases.
Symptoms of hydrogen sulfide poisoning
A person almost daily faces such a sulfur compound. Despite the pronounced persistent odor, the body quickly gets used to it, without noticing the presence of this substance in the environment. This is dangerous and hydrogen sulfide.
What concentration of gas will affect a person negatively? In small quantities, it does not harm. But already in the concentration of hydrogen sulfide in the inhaled air of about 0.01% and above - symptoms of damage to the digestive system and depression of the nervous system appear. In the amount of more than 0.05%, there is a sharp deterioration in the work of all systems of human organs and a lightning-fast death may occur (in case of contact with it 30 minutes or more).
The ingestion of hydrogen sulfide occurs when the sulfur compound is inhaled while working with it, if the safety regulations are not followed.
What are signs of hydrogen sulfide poisoning?
- Inhalation, salivation, runny nose, itching in the nose.
- Especially dangerous is getting into the eyes of the poison. Vapors cause eye swelling, pain and hyperemia of the conjunctiva, corneal clouding and iris damage. Photophobia may be present for some time after poisoning. Large concentrations of a substance may subsequently lead to blindness.
- If the product gets on the skin, depending on the concentration of the substance, redness or burns of 2-3 degrees appear. People with extensive burns develop shock.
- Hydrogen sulfide and other systems are harmful, it affects the human body as follows: if ingested, nausea, vomiting, dizziness, disorder of consciousness, sore throat, chest pain, persistent cough develops. As a rule, bronchitis develops, often with coughing bloody sputum. In rare cases, there may be bronchopneumonia.
- Other symptoms of hydrogen sulfide poisoning include fatigue, headaches, dizziness, stunning or arousal of consciousness, low blood pressure, fever, fainting.
- Severe poisoning proceeds according to the type of "convulsive" coma: rapid loss of consciousness with convulsions, sharp depression of reflexes, impaired breathing and blood circulation. Death occurs from paralysis of the respiratory muscles.
With a favorable course of coma is replaced by motor excitation and deep sleep.
First aid and treatment for hydrogen sulfide poisoning
What to do in case of hydrogen sulfide poisoning?
Antidote hydrogen sulfide is a 1% solution of methylene blue, 50-100 ml of which is administered intravenously. Since this substance is not in the first-aid kit of everyone, then it is possible to provide first aid to the victim in case of hydrogen sulfide poisoning as follows.
Remove the person from the alleged site of poisoning.
- Free him from tight clothing: take off his tie, unbutton his shirt, blouse.
- If possible, oxygen inhalation should be performed.
- Rinse the mucous membranes with running water for 10 minutes. Put 0.5% solution of Dicain in the eyes.
- If the poison got inside - you need to make a gastric lavage with warm water.
- At the time of assistance, you must immediately call an ambulance for quick delivery of a person to the intensive care unit. With severe poisoning methods at hand will not help.
- Treatment of severe hydrogen sulfide poisoning is carried out only in the hospital. Introduce antihistamines, painkillers, hormonal substances. When the respiratory system malfunctions, oxygen inhalations and correction of vital organ systems are performed depending on the indications.
Even with a slight sulfur poisoning, you can get a whole bunch of unpleasant complications. The consequences of hydrogen sulfide poisoning can affect primarily the respiratory system and organs of vision. Bronchitis and reduced visual acuity - minimal problems that threaten with the wrong behavior of a person. Therefore, in any case it is worth asking for help from specialists.