Figure 2.12: Percentage of measured one-hour and eight-hour average CO concentrations within air quality categories in Hamilton
Return to the point in the document where this figure is located.
Text description of figure
There are two charts measuring CO concentrations in Hamilton from 1998 to 2001.
The first chart shows 8-hour concentrations of CO (measured by air quality categories). The majority of air qualities are “Excellent”, and the proportion of “Excellent” readings increased through the period, before decreasing slightly in 2991.
The second chart shows one-hour concentrations of CO (measured by air quality categories). Air qualities were overwhelmingly “Excellent” for the period.
