- GENERAL PROPERTY:-
- Colorless, odorless and has slightly acidic taste.
- Specific Gravity = 1.519; which is almost one&half times that of air.
- 100 volume of water dissolving at 15°C with 100 volume of CO2 and forms a weak acid.
- SOURCES:-
- Strata emission
- Oxidation of carbonaceous material.
- Internal combustion engines.
- Blasting.
- Fires.
- Explosion.
- Respiration
- PHYSIOLOGICAL EFFECTS:- CO2 dilutes oxygen in air and acts as a simulant to the respiratory and central nervous system. Diffusion of gas in blood stream is rapid and it affects the rate of breathing.
Physiological effects of CO2 | |
CO2 Conc. | Effects |
0.03% | No effect-it is the normal conc. of CO2 in air. |
0.50% | Lung ventilation gets increased by 5%. |
2% | Lung ventilation gets increased by 50%. |
3% | Lung ventilation gets doubled,heavy breathing or panting or exertion. |
5%-10% | Violent panting leading to fatigue from exhaustion(extreme fatigue),headache. |
10%-15% | Intolerable panting, severe headache, rapid exhaustion and collapse. |
- PERMISSIBLE CONCENTRATION:- As per Indian Standards (DGMS), CO2 concentration should not be allowed to exceed 0.5%.
- DETECTION OF CO2:-
- M.S.A. universal tester.
- Drager Multi gas Detector.
- Auer Gas Taster.
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