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According to a Mackay Level I model calculation, the main target compartment for decamethylenediamine will be the hydrosphere (99.95 %). The calculated Henry’s Law constant of 0.00058 Pa m³/mol at 20 °C indicates low volatility of decamethylenediamine from surface waters. With a Koc of 158489 a very high sorption potential is expected (Blume scale).