From: Environmental assessment of pediatric Lead exposure in Tehran; a prospective cross-sectional study
Lead level | Median (IQR) | Standard limit | p-value |
---|---|---|---|
Scratched paint (ppm) | 105.6 (71.1–123.7) | 90 (CPSCa) | 0.28 |
House floor dust (μg/ft2) | 77.4 (66.5–84) | 10 (EPAb) | < 0.001 |
Interior window-sills dust (μg/ft2) | 291 (231.2–345.2) | 100 (EPAb) | < 0.001 |
Tap water (μg/kg) | 63.5 (36–78.9) | 15 (EPAb) | < 0.001 |
Spice (μg/kg) | 56.7 (20.6–98.5) | 300 (WHOc) | < 0.001 |