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Carbon Dioxide

The dangers of Carbon Dioxide

Carbon Dioxide is a colourless, odourless gas which is a natural component of the air we breathe, yet is toxic in higher concentrations. It is heavier than air.

Increased levels of Carbon Dioxide results in progressive physiological effects (see below) resulting in life threatening situations in high concentrations. It can also deplete the Oxygen content of air, resulting in a risk of asphyxiation. Carbon Dioxide in its dry form is commonly called ‘Dry Ice’.

CAS No. 124-38-9
EH 40 Workplace Exposure Limit LEL 5,000 PPM
EH 40 Workplace Exposure Limit STEL 15,000 PPM
Relative Density 1.52

Physiological Effects:

Level Effect
300-400 ppm Normal level in air
600-800 ppm Acceptable air quality
1000 ppm Tolerable air quality
5000 – 30000 ppm Drowsiness, headaches unless exposure is very short
3-8% Increased respiration & heart rate
10% – 20% Nausea, vomiting and unconsciousness – significantly depleted Oxygen levels
20% and above Fast unconsciousness, death

Safety Gas Detection manufactures Carbon Dioxide detection systems which detect the presence of low levels of Carbon Dioxide, and give a Carbon Dioxide Alarm.

See also:

Wikipedia Carbon Dioxide

Wikipedia data page