EDI_toddler = [ (IR_dust × C_dust) + (ER_toy × Hrs_mouthing) ] × Modifiers / BW
Calculates intake from house dust and toy leaching. Modifiers account for particle size. Final dose is normalized by Body Weight.
1. Toddler Biometrics
Body Weight (BW) [kg]
Source: [WHO Child Growth Standards]Normalization Metric
Source: [Standard RA Practice vs. Particle-Specific]Using Body Weight is standard but may be less relevant for particle toxicology. 'None' provides the absolute particle flux.
2. Direct Dust/Soil Ingestion
Dust Ingestion Rate (IR_dust) [mg/day]
Source: [EPA ExpoBox - General Population]Dust Concentration (C_dust) [p/mg]
Source: [Zhang et al. 2021]3. Plastic Toy Mouthing
Toy Emission Rate (ER_toy) [p/hr]
Source: [Plastic Leaching Estimation]Mouthing Duration (Hrs_mouthing) [hr/day]
Source: [Xue et al. 2007 - Mouthing Data]4. Hazard Characterization
Note: Defaults are set for a high-concern scenario (mouthing of high-priority polymer toys). Adjust the Polymer Toxicity score for safer toy materials.
Polymer & Chemical Profile
Source: [Lithner et al. 2011]Morphology & Size
Source: [Vethaak & Legler 2021]5. Risk Matrix Options