Table 4.
Expected mean intelligence loss estimates for children at different air lead standard levels using concentration-response functions developed in low socioeconomic groups *.
| Potential Standard (µg/m3) | Air-to-Blood Lead Ratio | ||
|---|---|---|---|
| 1:5 | 1:7 | 1:10 | |
| 0.02 | 0.2 (0.00, 0.5) | 0.3 (0.00, 0.7) | 0.5 (0.01, 0.1) |
| 0.05 | 0.6 (0.01, 1.2) | 0.8 (0.01, 1.7) | 1.2 (0.02, 2.4) |
| 0.10 | 1.2 (0.02, 2.4) | 1.7 (0.02, 3.4) | 2.4 (0.03, 4.8) |
| 0.15 | 1.8 (0.02, 3.6) | 2.5 (0.03, 5.0) | 3.6 (0.1, 7.2) |
| 0.20 | 2.4 (0.03, 4.8) | 3.4 (0.04, 6.7) | 4.8 (0.1, 9.6) |
| 0.25 | 3.0 (0.04, 6.0) | 4.2 (0.1, 8.4) | 6.0 (0.1, 12.0) |
| 0.30 | 3.6 (0.15, 7.2) | 5.0 (0.1, 10.1) | 7.2 (0.1, 14.4) |
| 0.40 | 4.8 (0.16, 9.6) | 6.7 (0.1, 13.4) | 9.6 (0.1, 19.2) |
| 0.50 | 6.0 (0.1, 12.0) | 8.4 (0.1, 16.8) | 12.0 (0.2, 24.0) |
* Ranges are based on the lowest and highest concentration-response functions.