Figure 7.2: The percentage of measured 24-hour average PM₁₀ concentrations within air quality categories in Napier

Text description of figure

There is a chart showing 24-hour average concentrations of PM₁₀ measured in Taradale at Guppy Road in 1998 and 1999, and at Nelson Park in 2000 and 2001. Concentrations were better at Guppy Road, where in 1999 over 90 per cent of measurements were in the 'good' category. At Nelson Park nearly 10 per cent of measurements were over the guideline in 2000, but there were no measurements over the guideline in 2001, and concentrations in the 'good' category increased from just under 70 per cent to 80 per cent.