A new UK Biobank study of over 300,000 participants shows that reducing air pollution could prevent nearly 16% of late-life eczema cases. Researchers found that people living in polluted areas are more likely to develop eczema as they age. The study highlighted black carbon from diesel vehicles, wood-burning stoves, and forest fires as major sources of harmful pollution.
Dr. Minxue Shen from China’s Central South University explained, “The best way to reduce the risk of eczema and other diseases is to use clean energy and cut emissions.” Megan Park from the University of Toronto agreed, saying this research should be a wake-up call for policymakers to take stronger action on air quality.
Atopic eczema causes inflammation and itching that can affect daily life and sleep. Although it is often considered a childhood disease, more adults are being diagnosed later in life. Treatment can be difficult because many eczema medicines suppress the immune system, which can be risky for older people. Researchers estimate that reducing pollution could prevent thousands of eczema cases, while cutting genetic risk might only prevent around 6%.
Air Pollution’s Hidden Impact
Black carbon particles are especially concerning because they are tiny enough to enter the body through the lungs. Dr. Shen said there is no safe level of air pollution for eczema prevention. The study found a strong connection between air pollution and skin inflammation. Tests on mice showed that pollution may trigger eczema through the respiratory system rather than direct skin contact.
The Path to Cleaner Air
Experts believe cleaner air policies can make a major difference. Using air purifiers or wearing masks in polluted areas can help temporarily. However, long-term progress requires cleaner fuels and stricter environmental regulations. As Dr. Park noted, cleaner air means healthier skin and stronger communities.
