Investigation of MP Pollution in the Human Respiratory System and Its Relationship to Lung Cancer

Inclusion Criteria: * English or Spanish-speaking patients scheduled for bronchoscopy/bronchoalveolar lavage (BAL) in thoracic clinics at Moffitt. Exclusion Criteria: * Patients with a known prior history of lung cancer or that have undergone a Bronchoalveolar Lavage (BAL) procedure at any time in the past in the involved lung targeted for BAL. * Patients that have had any prior lung or thoracic or surgeries or procedures (examples: removal of lung or portions of the involved lung (lobectomy, pneumonectomy, wedge resection/segmentectomy). * Patients with specimens that are considered to be non-adequate as true Bronchoalveolar Lavage Fluid (BALF) (i.e., absence of alveolar macrophages) after pathologist's evaluation will be excluded from the study.