Table 2.

Physicochemical properties and their impact on chemical fate

Physicochemical property	Impact on fate
Molecular weight, water and octanol solubility, steric hindrance, ionizability, adsorptive properties, chemical form (e.g., liquid, solid, particle, etc.)	Bioavailability
Henry's constant in water, vapor pressure, K oa	Air/water partitioning
Ionizability, adsorptive properties, water solubility	Soil or sediment/water partitioning
Hydrolyzable groups	Potential modulation of degradation by environmental pH
Photochemical reactivity	Potential modulation of degradation by sunlight