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ClinicalTrials.gov public records Last synced Sep 25, 2026, 5:46 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Pollution; Exposure Clear all
Not listed No phase listed Observational Accepts healthy volunteers

Cardiovascular Effects of Exposure to Ozone

NCT01487005
View directory record Official record
Conditions
Cardiovascular Injury
Interventions
Not listed
Lead sponsor
Health Effects Institute
Other
Eligibility
55 Years to 70 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
4
States / cities
San Francisco, California • Watertown, Massachusetts • Rochester, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2012 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Sequential Exposure to Nitrogen Dioxide and Ozone in Healthy Adult Human Volunteers.

NCT02133586
View directory record Official record
Conditions
Respiratory Depression
Interventions
Ozone, Nitrogen dioxide
Other
Lead sponsor
Environmental Protection Agency (EPA)
Federal
Eligibility
18 Years to 40 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 16, 2020 · Synced Sep 25, 2026, 5:46 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Voices Illuminating Solutions for Outdoor Workers' Needs and Safety

NCT07713264
View directory record Official record
Conditions
Air Pollution Exposure
Interventions
Receive education on heat and air quality health risks, Participate in Photovoice and climate health risk education
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Rural Appalachia Pilot Water Treatment Trial

NCT06120985
View directory record Official record
Conditions
Water-Related Diseases, Enteric Pathogens, Exposure to Chemical Pollution
Interventions
Countertop pitcher water filter
Device
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
6 Months and older
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
2
States / cities
Johnson City, Tennessee • Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Sep 25, 2026, 5:46 AM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Environmental Toxicants Avoidance Study

NCT04821752
View directory record Official record
Conditions
Pollution; Exposure, Glucose Intolerance, Glycemic Control
Interventions
Avoidance Education
Behavioral
Lead sponsor
Bastyr University
Other
Eligibility
18 Years to 100 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Kenmore, Washington
Source: ClinicalTrials.gov public record
Updated Sep 26, 2024 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional

Residential Ventilation Systems and Filtration for Asthma Control in Adults

NCT06098287
View directory record Official record
Conditions
Asthma, Pollution; Exposure
Interventions
Residential mechanical ventilation system (Exhaust), Residential mechanical ventilation system (CFIS) and air filtration upgrades, Residential mechanical ventilation system (ERV) and air filtration upgrades
Device
Lead sponsor
Illinois Institute of Technology
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 23, 2023 · Synced Sep 25, 2026, 5:46 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Omega-3 Fatty Acids in Ambient Air Pollution Exposure in Healthy Adults

NCT02921048
View directory record Official record
Conditions
Health Effects of Ambient Air Pollution
Interventions
omega-3 fatty acids
Dietary Supplement
Lead sponsor
U.S. EPA Human Studies Facility
Federal
Eligibility
25 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 9, 2022 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Wildfire Related Air Pollution Exposure and Cognitive Function Pilot Study

NCT07151235
View directory record Official record
Conditions
Healthy Participants
Interventions
Simulated wildfire smoke exposure, Clean Air exposure
Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 40 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Piscataway, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 25, 2026, 5:46 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Transportation Choices on Commuter Health

NCT05758714
View directory record Official record
Conditions
Pollution; Exposure
Interventions
Not listed
Lead sponsor
UConn Health
Other
Eligibility
18 Years to 99 Years
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 10, 2025 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Air Pollution and Physical Activity Study

NCT06386055
View directory record Official record
Conditions
Physical Inactivity, Pollution; Exposure
Interventions
Active exercise
Behavioral
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
35 Years to 55 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigating the Effect of Daily CARDIO® Capsules Supplementation on Improved Sleep in Healthy, Urban-Dwelling Adults

NCT06768970
View directory record Official record
Conditions
Sleep, Pollution; Exposure, Cough
Interventions
CARDIO® salmon oil
Dietary Supplement
Lead sponsor
Hofseth Biocare ASA
Industry
Eligibility
18 Years to 70 Years
Enrollment
131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 9, 2025 · Synced Sep 25, 2026, 5:46 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cardiopulmonary Effects of Particulate Exposure

NCT00011310
View directory record Official record
Conditions
Respiratory Tract Diseases, Cardiac Diseases, Bronchitis
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2002
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 3, 2006 · Synced Sep 25, 2026, 5:46 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Melanin and Dermal Uptake of Thirdhand Cigarette Smoke

NCT06020248
View directory record Official record
Conditions
Healthy
Interventions
Wear clothing that has been exposed to cigarette smoke for 3 hours.
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 25, 2026, 5:46 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The Role of Macrophage Activation in Lung Injury Following Ozone Exposure

NCT05794087
View directory record Official record
Conditions
Air Pollution
Interventions
Clean Air, Ozone
Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 40 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Piscataway, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 25, 2026, 5:46 AM EDT
Completed No phase listed Observational Results available

Change in Knowledge After Receiving Personal Air Pollution Results

NCT05160948
View directory record Official record
Conditions
Environmental Exposure
Interventions
Informational Report
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
15 Years to 99 Years
Enrollment
105 participants
Timeline
2021 – 2022
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 25, 2026, 5:46 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Savannah Environmental Nutrition Study (SENS): Nutrition Intervention to Reduce Air Pollution-Related Airway Inflammation and Oxidative Stress

NCT07797413
View directory record Official record
Conditions
Air Pollution Exposure, Oxidative Stress, Airway Inflammation
Interventions
Antioxidant- and Nutrient-Rich Food-Based Nutrition Intervention
Other
Lead sponsor
Georgia Southern University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Savannah, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional Results available

AIM to Improve Asthma: Airflow Improvements During Meal-Prep

NCT04464720
View directory record Official record
Conditions
Asthma in Children, Pollution; Exposure
Interventions
Cooking Ventilation Intervention
Behavioral
Lead sponsor
University of California, Berkeley
Other
Eligibility
6 Years to 12 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Sep 25, 2026, 5:46 AM EDT
Not listed Phase 2 Interventional

Healthy Outcomes of Pregnancy Education

NCT00381823
View directory record Official record
Conditions
Environmental Tobacco Smoke Exposure, Depression, Partner Abuse, Tobacco Smoking
Interventions
Cognitive Behavioral Therapy
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years and older · Female only
Enrollment
1,750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 28, 2006 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Milwaukee Day Cares Indoor Air Quality Assessment and Educational Response Study

NCT03675009
View directory record Official record
Conditions
Pollution; Exposure
Interventions
Educational Programming
Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 21, 2019 · Synced Sep 25, 2026, 5:46 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Immune Tolerance Dysfunction in Pregnancy Due to Ambient Air Pollution Exposure

NCT04549142
View directory record Official record
Conditions
Air Pollution, Pregnancy
Interventions
There is no intervention
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2023 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Reducing Traffic Pollution Exposure Improves Blood Pressure

NCT04029129
View directory record Official record
Conditions
Air Pollution
Interventions
Air filtration and building envelop modifications
Other
Lead sponsor
UConn Health
Other
Eligibility
40 Years to 75 Years
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ozone Cardiovascular Effects in Genetically Susceptible People

NCT01192477
View directory record Official record
Conditions
Healthy
Interventions
Ozone
Other
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 40 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 3, 2013 · Synced Sep 25, 2026, 5:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

PRIDE: Preventing Respiratory Illnesses During Childhood Study

NCT00927264
View directory record Official record
Conditions
Tobacco Smoke Pollution
Interventions
Motivational Interviewing Intervention for ETS Reduction, Educational Program for ETS Reduction
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
6 Months to 6 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 23, 2017 · Synced Sep 25, 2026, 5:46 AM EDT
Recruiting Not applicable Interventional

Reducing AIR Pollution Exposure to Lower Blood PRESSURE Among New York City Public Housing Residents

NCT05874479
View directory record Official record
Conditions
Blood Pressure
Interventions
Active PAC, Sham PAC
Device
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 100 Years
Enrollment
440 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 25, 2026, 5:46 AM EDT