Encyclopedia of Environmental Science and Engineering, Volume I and II

36 AIR POLLUTANT EFFECTS

10

20

30

50

100

200

300

500

1000

2000

5000

exposure duration (minutes)

908070605040 30 20 10987 6 5 4 3 2 1

(^100) percent carboxyhemoglobin in blood
100 ppm
50 ppm35 ppm25 ppm
1000 ppm500 ppm200 ppm
P
B
= 750 mmHg
P
CO
= 100 mmHg 2
V
A
= 6000 ml/min
V
= 5500 mlb
M = 218D
= 30L
ml/min

• mmHg

COHb

= 0.8%o

V

CO

= 0.007

ml/min

FIGURE 3

Criteria for Recommended Standard Occupational Exposure to Carbon Monoxide. NIOSH, 1972.

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