O-COPD	Occupational chronic obstructive pulmonary disease
SiNPs	Silica nanoparticles
MNPs	Magnetic nanoparticles
CAT	COPD assessment test
FEV1	Forced expiratory volume in 1 s
FVC	Forced vital capacity
DLco	Lung diffusion capacity for carbon monoxide
CT	Computed tomography
TEOS	Tetraethoxysilane
RMST	Restricted mean survival time
ECM	Extracellular matrix
ICP-AES	Inductively coupled plasma atomic emission microscopy
LAA	Low attenuation area
HAA	High attenuation area
mPAP	Mean pulmonary artery pressure
AMs	Alveolar macrophages
AECs	Alveolar epithelial cells