Figure 4.2: Percentage of measured one-hour and 24-hour average SO₂ concentrations within air quality categories in Hastings, 1998

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There are two charts measuring one-hour and 24-hour SO₂ concentrations in Hastings from September to November, 1998. All measurements were “Excellent”.

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Figure 4.2: Percentage of measured one-hour and 24-hour average SO2 concentrations within air quality categories in Hastings, 1998

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Figure 4.2: Percentage of measured one-hour and 24-hour average SO₂ concentrations within air quality categories in Hastings, 1998