Skip to main content

Table 1 Effects of CO concentration on the human body

From: Building an indoor air quality monitoring system based on the architecture of the Internet of Things

Item CO content Human exposure time and physical symptoms
1 0.01% (100 ppm) Causing symptoms, such as headaches, lethargy, nausea, muscle weakness, and loss of judgment within 6–8 h
2 0.02% (200 ppm) Causing light headaches within 2–3 h
3 0.04% (400 ppm) Causing worse headaches within 2.5–3.5 h
4 0.08% (800 ppm) Causing dizziness, nausea, and cramping within 45 min
5 0.16% (1600 ppm) Causing headaches and dizziness within 20 min, and leading to death within 2 h
6 0.32% (3200 ppm) Causing headaches, dizziness, and vomiting within 5–10 min, and leading to death within 30 min
7 0.64% (6400 ppm) Causing headaches and dizziness within 1–2 min, and leading to death within 10–15 min
8 1.28% (12,800 ppm) May lead to death within 1–3 min