Do not go gentle into that good night, old age should burn and rave at close of day; Rage, rage against the dying of the light, though wise men at their end know dark is right, because their words had forked no lightning they, do not go gentle into that good night.
Fine dust is damaging our skin, new study finds
Smog shrouds downtown Seoul’s Jongno District as a thick layer of fine dust blankets the capital, Nov. 22, 2024. Korea Times file
By Jhoo Dong-chan
While the hazardous effects of air pollution on the human respiratory and cardiovascular systems have long been documented, groundbreaking new research indicates that the threat extends far beyond the lungs, penetrating the body’s largest organ: the skin.
In the largest Asia-based population study of its kind, researchers at the Korea Disease Control and Prevention Agency (KDCA) and the National Institute of Health discovered a powerful link between ambient particulate matter and psoriasis, a debilitating chronic inflammatory skin condition. Analyzing a massive national health database of approximately 8.4 million adults over an average of 13.6 years, the study underscores how deeply environmental degradation is rewriting human pathology.
The numbers paint a troubling portrait of urban exposure.
According to the findings published in The Journal of Dermatology, long-term exposure to fine particulate matter, known as PM2.5, increases the risk of developing psoriasis by 19 percent for every incremental rise of 10 micrograms per cubic meter in annual concentration. For coarser particles, or PM10, the risk spikes even more dramatically, jumping by 27 percent per 10-microgram increase.
The danger is not confined to the initial onset of the disease.
For the 68,000 individuals within the cohort who already suffered from psoriasis, sudden spikes in daily pollution levels triggered immediate medical deterioration. Short-term spikes of 10 micrograms per cubic meter in daily PM2.5 and PM10 concentrations were associated with a 3 percent and 1 percent increase, respectively, in acute symptom exacerbations — forcing patients to escalate their medical treatments to systemic drugs or light therapies.
“This study demonstrates that reducing ambient pollution is a matter of dermatological urgency,” said Kim Won-ho, director of the Chronic Disease Convergence Research Department at KDCA.
Experts note that microscopic toxins disrupt skin barriers, induce severe oxidative stress and trigger systemic inflammatory cascades.
The risk was particularly pronounced among city dwellers, individuals under 60, smokers and those with preexisting allergies. As smog thickens globally, public health officials are now urging vulnerable populations to implement rigorous skin care regimens, including thorough cleansing and barrier-repair moisturizing immediately after spending time outdoors.
This article was published with the assistance of generative AI and edited by The Korea Times.