This issue of Clinics in Chest Medicine, guest-edited by Drs. Carrie A. Redlich, Kristin J. Cummings, and Peggy Lai, is focused on Advances in Occupational and Environmental Lung Diseases. Topics discussed in this issue include but are not limited to: Master Clinician - selected occupational and environmental pulmonary cases; Chest imaging in the Diagnosis of Occupational Lung Diseases; Harnessing electronic medical records to enhance the diagnosis of work-related lung diseases; The impact of health disparities on lung disease; Respiratory health effects of exposure to cleaning products; Occupational upper airways disorders, including laryngeal dysfunction; Occupational bronchiolitis - including flavoring-related lung disease, deployment; Coal workers pneumoconiosis and other mining-related lung disease: the re-emergence of an old disease (including COPD in miners); Occupational contributions to ILD (including asbestos, overlap HP and ILD); Silicosis - Persistence of an old disease, old and new exposure settings and prevention; Occupational respiratory cancer: Chest CT screening; Occupational respiratory Infections: pneumonia, healthcare workers; Update on climate change: its impact on respiratory health at work, home, and at play; The changing nature of wildfires: update on the respiratory health of first responders and communities; The microbiome and damp Indoor environments; The on-going impact of World Trade Center exposures on respiratory health; The impact of Electronic cigarettes and smoking cessation; The respiratory risks of ambient /outdoor air pollution; and Indoor air pollution and respiratory health.

The National Institute for Occupational Safety and Health (NIOSH) received a confidential request to conduct a health hazard evaluation (HHE) at the General Mills bakery mix production facility in Los Angeles, CA. Requesters were concerned about exposure to respiratory health hazards including flavorings containing diacetyl. NIOSH findings and recommendations are detailed.