Effects of carbon monoxide ( CO )exposure

ppm level*effectstime35
Max. permissible level 8 hours200
Slight headache 3 hours400-600
Headache, disconfort 1-2 hour1000-2000
Staggering,heartpalpitation 1.5 hour2000 à 5000
Unconsciousness, death0.5 – 1 hour *values are approximate CO has an affinity for human blood hemoglobin that is over 200 times greater than oxygene.