Download SIEMENS

SIEMENS
These effects on health of COHb in the blood of sane adults are recognized.
% COHb
0.3-0.7
0.7- 2.9
2.9-4.5
4-6
7-10
10-20
20-30
30-40
40-50
60-70
EFFECTS
Normal rate in non smokers due to internal production of CO
Physical troubles, not detectable
Heart troubles in patients affected by heart disease
Usual values for smokers, problems in psychomotor tests
Troubles in patients not affected by heart disease (increase in heart
throughput and blood flow in coronaries)
Light headache, weakness, possible effects on the fetus
Heavy headache, nausea, reduction in hand motion capacity
Heavy headache, irritability, confusion, reduction of sight capacity, nausea,
muscular weakness, dizziness
Convulsion and state of unconsciousness
Coma, collapse, death
Table 1.2
Similar tables and a wide literature on this subject are available. The publication “Air quality for CO” by the US Health, Education and Welfare
department, deals with sight capacity decrease with 3% COHb and other psychomotor tests with 5% COHb.
More recently a reduction of motion capacity in people exposed to a dose of 100 ppm for one hour has been demonstrated.
Siemens Building Technologies
HVAC Products
8
User Manual - LYC40 Rev.06
September 2001