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Fig. 1 | Respiratory Research

Fig. 1

From: Potential role of polycyclic aromatic hydrocarbons in air pollution-induced non-malignant respiratory diseases

Fig. 1

Possible mechanisms linking polycyclic aromatic hydrocarbons (PAHs) with non-malignant respiratory diseases. Three general lines of causality are suggested: (i) Distortion of autonomic nerve endings in the lungs causing loss of vascular and smooth muscle control reflexes via the autonomic nervous system (ANS; red), (ii) Pulmonary inflammation (green) and (iii) direct effects of detached PAHs from particles or PAHs from gas phase affecting lung/circulation directly (blue)

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