Table 4.
Cluster model for the harmonic component of magnetic field exposure. For details, see Table 2.
| Variable | Centroid Coordinate | η 2 | ||
|---|---|---|---|---|
| Cluster 1 (N = 7) |
Cluster 2 (N = 139) |
Cluster 3 (N = 738) |
||
| UNDlow | 2.4 | 14.0 | 2.9 | 0.37 |
| UNDmid | 0.4 | 5.8 | 0.7 | 0.37 |
| UNDhigh | 0.0 | 0.0 | 0.0 | 0.00 |
| UNDextra | 0.0 | 0.0 | 0.0 | 0.02 |
| OVHDlow | 1.4 | 1.0 | 1.4 | 0.01 |
| OVHDmid | 0.0 | 0.0 | 0.1 | 0.01 |
| OVHDhigh | 0.1 | 0.0 | 0.0 | 0.02 |
| OVHDextra | 0.9 | 0.0 | 0.0 | 0.86 |
| OVDHultra | 0.7 | 0.0 | 0.0 | 0.27 |
| Substation | 0.1 | 0.9 | 0.0 | 0.70 |
| GM (µT) a | 0.010 | 0.007 | 0.004 | 0.01 |
| Q1 | 0 b | 0 b | 0 b | |
| Q3 | 0.020 | 0.010 | 0 b | |
a Harmonic component of MF (average value, 1st and 3rd quartiles within each cluster). b The value is below the lower sensitivity threshold of the exposimeter.