Poisoning with carbon dioxide
Occupational Diseases / / May 11, 2016
Carbon dioxide (carbon dioxide) - gas is colorless and odorless.It is used in steel industry, when electric welding work in the production of white lead, urea, ammonium carbonate, sodium and sugar.In liquid form (balloon) or in the form of dry ice is used in the refrigeration industry, in the production of artificial mineral waters and others.
permanently contained in small amounts in air (0.03-0.1%).The content can be increased in the mines, caissons, in sugar factories (in carbonated boilers), in fermentation offices breweries and others. Poisonings are also possible when working with dry ice, in manholes a water supply system, etc.. Allowed content in coal and ozokeritovyh minesC02 0.5%.
By its action on the body of carbon dioxide is a drug, is irritating to the skin and mucous membranes.In high concentrations, inhibits the respiratory center.The high content of carbon dioxide is usually accompanied by a low concentration of oxygen in the air, that is also the reason anoxaemia.
When containing carbon dioxide in the air space over 2% observed headache, drowsiness, weakness.At a concentration of 5-8% show signs of irritation of the mucous membranes of the eyes and upper respiratory tract, headache, tinnitus, agitation, dizziness, feeling of heat, palpitations, shortness of breath, nausea, a sharp increase in pulmonary ventilation due to the more frequent and deeper breathing, increased bloodpressure (particularly the minimum), lowering body temperature.Already when the content in indoor 3% carbon dioxide and 13.6% oxygen may be suffocation.Inhalation of high concentrations of carbon dioxide cause death from respiratory failure.
P when you exit from the state of heavy intoxication consciousness returns after a few minutes.There is a retrograde amnesia.Residual effects (headache, weakness, chest tightness) can be detected in the first day.After severe intoxication sometimes develop bronchitis and pneumonia.
When you are working (gas masks) in an atmosphere rich in carbon dioxide (eg, 20%) was observed redness, tingling sensation.Skin liquid and solid carbon dioxide can be frostbite.The possibility of chronic poisoning has not been proved.
First aid and treatment
Remove to fresh air, take off your clothes, difficulty breathing, oxygen inhalation.According to the testimony - cardiovascular agents, artificial respiration.
thorough airing of the premises (pits, basements, tanks and other closed containers) before joining them.Entering or descent into closed places such work is carried out in gas masks in the presence of a second person.