Parameters | Description | Units | Values | Reference | |
Adult | Children | ||||
IRs | Ingestion rate of water | L·d−1 | 2.2 | 1.2 | |
EF | Exposure frequency | d·a−1 | 350 | 320 |
|
ED | Exposure duration | a | 70 | 6 |
|
BW | Average body weight | kg | 70 | 15.9 | |
AT | Average exposure time | d | 365 × ED (non-carcinogenic) | | |
365 × 70 (carcinogenic) | |||||
SA | Surface area of skin | cm2 | 18,000 | 6600 | |
AF | Skin adherence factor | mg·(cm2·d)−1 | 0.58 | 1 | |
ABS | Dermal absorption factor | unitless | 0.001 (non-carcinogenic) | | |
0.004-(non-carcinogenic for Pb) | |||||
0.01 (carcinogenic) |