Cadmium Compounds; Lung Injury/chemically induced; Lung/drug effects; Pneumonia/chemically induced; Quantum Dots; Selenium Compounds; Sulfides; Zinc Compounds; Animals; Bronchoalveolar Lavage Fluid/cytology; Cadmium Compounds/chemistry; Cadmium Compounds/pharmacokinetics; Cadmium Compounds/toxicity; Dose-Response Relationship, Drug; Inhalation Exposure; Lung/metabolism; Lung Injury/metabolism; Lung Injury/pathology; Male; Microscopy, Confocal; Microscopy, Electron, Transmission; Particle Size; Pneumonia/immunology; Pneumonia/metabolism; Pneumonia/pathology; Rats; Rats, Sprague-Dawley; Selenium Compounds/chemistry; Selenium Compounds/pharmacokinetics; Selenium Compounds/toxicity; Sulfides/chemistry; Sulfides/pharmacokinetics; Sulfides/toxicity; Surface Properties; Tissue Distribution; Zinc Compounds/chemistry; Zinc Compounds/pharmacokinetics; Zinc Compounds/toxicity