Note: Single-source report; awaiting corroboration.
Most air pollution is invisible and often odorless, yet it can significantly affect health. Lung specialist Dr. Stavros Garantziotis from the NIH explains that polluted air enters the lungs and then the bloodstream, causing inflammation that increases the risk of asthma, heart disease, stroke, brain disorders, and certain cancers. The effects of pollution exposure vary among individuals and can worsen conditions like asthma. Children, older adults, and those with heart disease or diabetes may experience more serious impacts from polluted air.
Research indicates that days with high pollution levels lead to more asthma attacks in children and increased hospital visits for heart attacks and strokes in older adults. While regulations have reduced some harmful emissions such as lead and sulfur dioxide, other pollutants remain a concern. Particulate matter, which consists of tiny particles from vehicles, power plants, and industries, can penetrate deep into the lungs. Ozone, a gas formed when sunlight reacts with pollutants, can irritate and damage airways.
The frequency and intensity of wildfires have also risen, releasing smoke that carries tiny particles, metals, and chemicals over long distances. This smoke spreads wherever the wind blows. Outdoor air pollution can infiltrate indoor environments, where air quality may be further affected by gas stoves, fireplaces, cigarette smoke, mold, dust, pet dander, and pests. According to Garantziotis, improving indoor air quality is often overlooked but can be addressed by taking simple steps.
Garantziotis and his research team are studying lung cell repair after pollution exposure and have found that air pollutants can disrupt the supportive structures around lung cells, potentially impairing healing processes. These findings highlight the widespread health implications of air pollution and the importance of minimizing exposure both indoors and outdoors.