Toenail total arsenic, cadmium and lead concentrations (µg/g)—geometric means for the Yellowknife population by participation group from YKHEMP
| Random sample | Volunteers | YKDFN | NSMA | |
| 3–19 years old | ||||
| Total arsenic | 0.40 (0.33 to 0.47) | 0.51 (0.43 to 0.62) | 0.29 (0.24 to 0.37) | 0.53 (0.25 to 1.14) |
| Cadmium | 0.03 (0.02 to 0.03) | 0.04 (0.03 to 0.04) | 0.02 (0.01 to 0.02) | 0.03 (0.01 to 0.09) |
| Lead | 0.65 (0.55 to 0.75) | 0.70 (0.59 to 0.84) | 0.39 (0.30 to 0.49) | 0.72 (0.44 to 1.17) |
| 20–79 years old | ||||
| Total arsenic | 0.11 (0.10 to 0.11) | 0.13 (0.12 to 0.14) | 0.09 (0.08 to 0.10) | 0.13 (0.09 to 0.17) |
| Cadmium | 0.01 (0.01 to 0.01) | 0.01 (0.01 to 0.01) | 0.01 (0.01 to 0.01) | 0.01 (0.01 to 0.02) |
| Lead | 0.25 (0.23 to 0.27) | 0.25 (0.23 to 0.27) | 0.17 (0.14 to 0.20) | 0.19 (0.14 to 0.24) |
Values presented in the parentheses are the 95% CI.
NSMA, North Slave Métis Alliance; YKHEMP, Yellowknife Health Effects Monitoring Program.