| Completed | Development and Validation of the Air Quality Awareness Scale (AQAS) for Parents NCT07283250 | Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization | — |
| Active Not Recruiting | The Effect of Environmental Factors on Gastric Cancer Based on Macrogenome NCT06854146 | Dong Peng | — |
| Not Yet Recruiting | Study to Determine the Difference in Reduction of Bioaerosols in a Long-term Care Facility NCT06506890 | C-Polar Innovations | N/A |
| Recruiting | Awareness of Individuals with Chronic Lung Disease About Climate Change, Heat Waves, Air Pollution and Physica NCT06592235 | Hacettepe University | — |
| Recruiting | The Influence of Climate and Air Pollution on Physical Activity of Chinese People in Shenyang and Shenzhen NCT07523659 | Shenzhen Institutes of Advanced Technology ,Chinese Academy of Sciences | — |
| Recruiting | Modelling of Correlation Between Emergency Department Admissions and Location-specific Air Quality and Weather NCT06491290 | Azienda Ospedaliero-Universitaria Careggi | — |
| Enrolling By Invitation | Modification of Ambient Air Pollution Exposure and Cardiopulmonary Outcomes by Socioeconomic Status and Nutrit NCT05843370 | Environmental Protection Agency (EPA) | — |
| Recruiting | Using Indoor Air Filtration to Slow Atherothrombosis Progression in Adults With Ischemic Heart Disease History NCT05867381 | University of Southern California | N/A |
| Recruiting | Speckle Tracking Echocardiography as a Tool for Early Diagnosis of Impaired Fetal Growth Twin Pregnancies NCT05423665 | University Hospital, Ghent | — |
| Recruiting | 1/2- Bangladesh Center for Global Environmental and Occupational Health- Bangladesh NCT05570552 | International Centre for Diarrhoeal Disease Research, Bangladesh | N/A |
| Recruiting | HEPA, PM2.5, and Cardiometabolic Health NCT05718245 | University of Southern California | N/A |
| Recruiting | The Role of Macrophage Activation in Lung Injury Following Ozone Exposure NCT05794087 | Rutgers, The State University of New Jersey | N/A |
| Unknown | Health Effects of Repeated Exposure to Low Levels of Concentrated Ambient Particles in Healthy Young Volunteer NCT05323240 | U.S. EPA Human Studies Facility | N/A |
| Unknown | Air Pollution and Daily Mobility of Pregnant Women Identification of Critical Windows of Exposure NCT04725734 | University Hospital, Strasbourg, France | — |
| Unknown | The Impact of Air Pollution on the Consumption of Antimicrobials in the General Population NCT04662047 | Hospital Universitari de Bellvitge | — |
| Completed | The Joint Effect of Air Pollution and Exercise on Cognitive Function NCT04830059 | Tsinghua University | N/A |
| Completed | Immune Tolerance Dysfunction in Pregnancy Due to Ambient Air Pollution Exposure NCT04549142 | Stanford University | — |
| Completed | Air Pollution Exposure on Acute Coronary Syndrome in Two Cohorts of Industrial and Non-industrial Areas NCT04539925 | Medical University of Silesia | — |
| Completed | Air Pollution: Strategies for Personalized Intervention to Reduce Exposure NCT03744871 | University Hospitals Cleveland Medical Center | N/A |
| Completed | Reducing Traffic Pollution Exposure Improves Blood Pressure NCT04029129 | UConn Health | N/A |
| Completed | Particulate Matter, Blood Pressure, and the Sympathetic Nervous System NCT03079843 | University of Michigan | N/A |
| Completed | Salvational Intervention for Reducing AECOPD Under Severe Air Pollution NCT03083067 | Peking University First Hospital | N/A |
| Completed | Air Pollution Study: The Effect of Ozone on the Lung NCT02673775 | Rutgers, The State University of New Jersey | N/A |
| Unknown | Short-term Air Pollution Exposure and In-hospital Outcomes in Patients With Acute Myocardial Infraction NCT02652182 | Nanjing Medical University | — |
| Completed | Exercise in Air Pollution and Lung Health in Asthmatics NCT02252302 | University of British Columbia | N/A |
| Completed | The Effect of Juice Types on the Responses to Air Pollution NCT02027415 | Rutgers, The State University of New Jersey | N/A |
| Completed | The Risk of Adverse Pregnancy Outcomes for Long-term Exposure to Air Pollution in Pregnant Patients With Pulmo NCT07164157 | Wei Huang | — |
| Completed | Boston Puerto Rican Health Study NCT03187704 | Tufts University | N/A |
| Completed | Does Sildenafil Increase Exercise Performance in Air Pollution? NCT00808912 | Marywood University | N/A |
| Completed | Lung Mucus Hypersecretion and NQO1 NCT00729352 | National Institute of Environmental Health Sciences (NIEHS) | — |
| Completed | Genetics of Beta Cell Failure in Mexican Americans NCT03301519 | University of Southern California | — |