Table 3 Measured ambient mercury concentrations, modelled mercury concentrations and Pearson's correlation coefficients between the two at each air monitoring station.
| Site | No of weeks sampled | Measured [Hg] (ng/m3) | Modelled [Hg] (ng/m3) | Correlation (p value) |
|---|---|---|---|---|
| Mean (range) | Mean (range) | |||
| 1 | 14 | 3.38 (1.49 to 7.78) | 3.27 (2.10 to 5.86) | 0.84 (<0.01) |
| 2 | 14 | 2.12 (0.92 to 4.47) | 2.35 (1.75 to 3.63) | 0.83 (<0.01) |
| 3 | 12 | 4.03 (1.59 to 11.68) | 2.91 (1.81 to 6.57) | 0.59 (0.04) |
| 4 | 14 | 8.28 (1.86 to 21.98) | 4.36 (2.20 to 7.91) | 0.79 (<0.01) |
| 5 | 12 | 2.88 (1.13 to 10.64) | 3.38 (1.75 to 6.96) | 0.24 (0.45) |
| 6 | 13 | 11.79 (2.11 to 35.92) | 6.44 (1.87 to 15.17) | 0.75 (<0.01) |
| 7 | 12 | 26.59 (5.54 to 73.13) | 13.38 (2.61 to 33.50) | 0.78 (<0.01) |
| 8 | 9 | 21.72 (4.16 to 43.92) | 10.88 (3.51 to 23.76) | 0.76 (0.02) |
| 9 | 10 | 23.17 (3.40 to 54.00) | 18.63 (3.74 to 48.71) | 0.78 (0.01) |
| 9i* | 29 | 24.11 (2.27 to 95.40) | 36.45 (2.80 to 69.20) | 0.64 (<0.01) |
*Department of the Environment, Transport and the Regions monitoring site located at the same site as site 9, but monitoring carried out during 2000 (compared with modelled output during 2000).