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Department of the Environment,
Transport and the Regions

Carbon Monoxide

Figures 1-4

Figure 1   UK emissions of carbon monoxide 1970-1992
Graph

Figure 2   Maximum hourly average carbon monoxide concentrations (ppm) in each month (1989 to 1992)
Graph

Figure 3   Maximum running 8-hour average carbon monoxide concentrations (ppm) in each month (1989 to 1992)
Graph

Figure 4   Uptake of carbon monoxide by blood
Graph

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Published 29 October 1998
Expert Panel on Air Quality Standards Index
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