Fig. 5

Error in cloud condensation nuclei, CCN, and particle deposition efficiency, F in the human respiratory tract. In a, green, red, blue and black filled circles represent environmental supersaturation, S ranges of 0.05–0.15, 0.2–0.3 0.35–0.5 and 0.55–1% respectively. In b, red, blue and gray filled circles indicate alveolar interstitium (AI), extrathoracic airway (ET) and tracheobronchial airway (TB) of the respiratory tract where the particles deposit respectively. Solid and dashed line indicate the mean and mean plus one standard deviation