Table 1 Exposure parameters in the non-oncogenic health risk assessment model.
Parameter | Unit | Adult | Children | Probability distribution |
|---|---|---|---|---|
Concentration of F−in groundwater (C) | mg·L−1 | Actual measurement | Actual measurement | - |
Daily groundwater consumption rate (IR) | L·d−1 | 1.8 | 0.7 | Triangular |
Exposure frequency (EF) | d·a−1 | 350 | 350 | Triangular |
Exposure duration (ED) | a | 24 | 6 | Triangular |
Body weight (BW) | kg | 56.8 | 15.9 | Normal |
Average exposure time (AT) | d | 8400 | 2100 | Fixed value |
Oral reference dose (RfD) | Mg·(kg·d)−1 | 0.06 | 0.06 | - |
Groundwater allocation factor (WAF) | - | 0.5 | 0.5 | - |
