Emissions of metals (1)
| Copper | Zinc | Beryllium | Lead | Calcium | Cadmium | Mercury | |
|---|---|---|---|---|---|---|---|
| *Lower limits of hotspots in kg/km2/year; †children migrating >1.0 km and with one address within 1.0 km of nearest hotspot and the other address outside 1.0 km. | |||||||
| Hotspot criteria* | 0.1 | 1.0 | 1.0 | 3 0 | 50.0 | 0.01 | 0.1 |
| Hotspots (1000s) | 121 | 83 | 3 | 47 | 40 | 156 | 26 |
| Number of children† | 1307 | 2458 | 689 | 2585 | 2605 | 477 | 3107 |
| Outward migration | 679 | 1332 | 353 | 1664 | 1564 | 290 | 1835 |
| Inward migration | 628 | 1126 | 336 | 921 | 1041 | 187 | 1272 |
| Ratios out/in | 1.081 | 1.183 | 1.051 | 1.807 | 1.502 | 1.551 | 1.443 |