Parameters | Unit | Values for adult | References |
---|---|---|---|
Rate of ingestion (RI) | mg/day | 100.00 | USEPA (2011) |
Exposed skin area (ESA) | cm2day | 3300.00 | Hue et al. (2014) |
Skin adherence factor (SAF) | mg/cm2 | 0.20 | Man et al (2013) |
Frequency of exposure (FE) | Days/year | 312.00 | Man et al (2013) |
Duration of exposure (DE) | Year | 30.00 | Cao et al. (2019) |
Time of exposure (ET) | h/day | 8.00 | Man et al (2013) |
Averaging time (AT) | Day | (70 yr \(\times \hspace{0.17em}\)365 days/yr) = 25, 550 | USEPA (2009) |
Averaging time (ATx) | h/day | 70Â yr \(\times\) 365Â days/yr \(\times\) 24Â h | USEPA (2009) |
Oral slope factor (OSF) | (mg/kg day)−1 | 7.30 | USEPA (2012) |
Gastrointestinal absorption factor (GIAF) \(\times\) (OSF) | (mg/kg day)−1 | 7.30 | USEPA (2012) |
Dermal absorption factor DAF | (mg/kg day)−1 | 0.13 | Man et al (2013) |
Inhalation unit risk (IUR) | (mg/kg day)−1 | 1.1 \(\times\) 10–6 | USEPA (2012) |
Body weight (BW) | kg | 60 | Onyedikachi et al (2019) |
Particle emission factor (PEF) | m3/kg | 1.36 × 109 | Wang et al. (2018) |
Conversion factor (CF) | kg/mg | 1 \(\times\) 10–6 | Man et al (2013) |