Work

The impact of ecosystem nitrogen enrichment on pollen allergy: a cross-sectional paired comparison study

Year: 2025

Type: article

Abstract: BACKGROUND: The prevalence of allergy to aeroallergens is rising, driven by both environmental and lifestyle changes. However, the role of ubiquitous nitrogen enrichment in exacerbating pollen allergy remains unclear. This study aimed to investigate the impact of nitrogen on pollen allergenicity by connecting the resulting ecological changes with allergic outcomes. METHODS: ), and effective concentration eliciting 50% basophil activation. FINDINGS: /L). INTERPRETATION: Nitrogen enrichment substantially increased pollen abundance and allergenicity, indicating a heightened allergy burden in nitrogen-rich environments. These findings underscore the need for policies addressing nitrogen pollution to mitigate its public health impacts. FUNDING: Belgian Science Policy Office.

Source: The Lancet Planetary Health

DOI: 10.1016/s2542-5196(25)00060-9