The dynamic partitioning of airborne phthalates in indoor environment: effects of ventilation

Low energy consumption buildings with strong air tightness such as passive are the development trend in world. However, ventilation directly affects emission and dynamic transport of indoor phthalates. A transient partition model considering behavior size-resolved particle was utilized to investigate influence on airborne Di-2-ethylhexyl phthalate (DEHP). The exchange rate ( a ) set 0.15 h -1 , 0.3 0.6 2h for different conditions. predicted gas-phase concentration DEHP initial 70 days is unaffected constant ms whereas it raises until increases 2 . equilibrium decreases from 0.257 0.203 μg/m 3 Meanwhile, higher also reduced particle-phase DEHP. Furthermore, changes were analyzed by impact caused ventilation. results indicates that more leads whole stage. at 0.237 0.440 total (gas-phase + particle-phase) ventitation rate, which has positive effect