Table 3 Estimated daily doses through dermal contact and ingestion of water and consumption of P. annectens
Indices | Group | Sampling point | Fe | Mn | Cu | Zn | Cr | Cd | Pb |
|---|---|---|---|---|---|---|---|---|---|
ADDIng (mg/L/day) | Adults | Ruliba station | 3.64E−07 | 1.86E−07 | 8.40E−08 | NA | NA | 3.71E−08 | 1.79E−08 |
Kirinda bridge | 2.21E−07 | 7.00E−09 | NA | 3.15E−08 | 2.10E−08 | NA | 2.63E−07 | ||
Giticyinyoni | 5.50E−07 | 1.72E−07 | 1.02E−07 | 1.51E−07 | 5.25E−08 | NA | 2.07E−07 | ||
Children | Ruliba station | 1.93E−07 | 6.36E−08 | 2.88E−08 | NA | NA | 1.27E−08 | 6.12E−09 | |
Kirinda bridge | 7.56E−08 | 2.40E−09 | NA | 1.08E−08 | 7.2E−09 | NA | 9.00E−08 | ||
Giticyinyoni | 1.88E−07 | 5.88E−08 | 3.48E−08 | 5.16E−08 | 1.8E−08 | NA | 7.08E−08 | ||
ADD Derm (mg/L/day) | Adults | Ruliba station | 8.17E−05 | 2.69E−05 | 1.23E−05 | NA | NA | 5.38E−06 | 2.59E−06 |
Kirinda bridge | 3.20E−04 | 1.02E−06 | NA | 4.57E−06 | 3.05E−06 | NA | 3.81E−05 | ||
Giticyinyoni | 7.97E−05 | 2.49E−05 | 1.47E−05 | 2.18E−05 | 7.61E−06 | NA | 3.0E−05 | ||
Children | Ruliba station | 6.01E−05 | 1.98E−05 | 8.94E−06 | NA | NA | 3.96E−06 | 1.87E−06 | |
Kirinda bridge | 2.35E−05 | 7.46E−07 | NA | 3.36E−06 | 2.24E−06 | NA | 2.80E−05 | ||
Giticyinyoni | 5.86E−05 | 1.83E−05 | 1.08E−05 | 1.61E−05 | 5.60E−05 | NA | 2.20E−05 | ||
EDI (mg/kg/day) | Adults | Ruliba station | 4.54E−01 | 4.86E−01 | 1.50E−02 | 2.25E−01 | 2.46E−01 | NA | 7.19E−01 |
Kirinda bridge | 5.59E−01 | 5.04E−01 | 1.10E−02 | 7.4E−02 | 2.30E−01 | NA | 5.03E−01 | ||
Children | Ruliba station | 1.816E0 | 1.945E0 | 5.90E−02 | 9.00E−01 | 9.85E−01 | NA | 2.88E0 | |
Kirinda bridge | 2.236E0 | 2.014E0 | 4.30E−02 | 2.98E−01 | 9.20E−01 | NA | 2.01E0 | ||
Dermal reference dose (mg/L/day) [12] | 1.4E2 | 9.6E−01 | 1.2E−02 | 6.0E−02 | 6.0E−05 | 6.0E−05 | 5.25E−04 | ||
Oral reference dose (mg/kg/day) [11] | 7.0E−01 | 3.0E−01 | 4.0E−02 | 3.0E−01 | 1.5E0 | 1.0E−03 | 1.4E−01 | ||