WHO reports stagnating global air‑pollution reduction and health risks

The World Health Organization released data showing that progress in reducing fine particulate matter worldwide has stalled since 2020. While overall levels fell before that year, they have remained essentially flat thereafter. People in low‑ and middle‑income countries are exposed to concentrations up to 13 times higher than those in high‑income nations, affecting an estimated 6.5 billion individuals. About 2 billion people still rely on inefficient stoves that emit harmful pollutants indoors. The agency links these exposures to chronic non‑communicable diseases such as heart disease, stroke, chronic obstructive lung disease and lung cancer, noting that 90 % of the health burden falls on poorer nations.

Regional trends vary: Asia records the highest pollution levels but also the greatest recent declines, whereas Africa, West Asia and North Africa have seen little change in the past decade. The WHO urges stronger multilateral monitoring, alignment of national standards with its air‑quality guidelines, and multisector collaboration to ensure universal access to clean air.

In a related discussion, allergology experts highlight that indoor environments are not automatically safe from pollutants. Pollen, dust‑mite allergens, pet dander, mold spores and particles from cooking or traffic can infiltrate homes, aggravating respiratory symptoms, disrupting sleep and even affecting skin health. While air‑purifying devices—such as Dyson’s HushJet Compact purifier, which claims 99.97 % removal of particles down to 0.3 µm—can improve indoor air quality, specialists stress they complement rather than replace medical treatment and broader environmental controls.