Association between yellow dust, PM2.5, and hay fever: A large-scale crowdsourced observational study using the AllerSearch smartphone application.
What's New
Fine particulate matter (PM2.5) and yellow dust were independently associated with worsened hay fever symptoms and lower quality of life, even on days when pollen levels were low.
Detailed Summary
Researchers used a smartphone app called AllerSearch to collect symptom data from 6,468 people with hay fever. Participants were grouped by combinations of high or low pollen and high or low PM2.5/yellow dust levels. Nearly all hay fever symptom scores and quality-of-life scores were significantly worse in the group exposed to moderate-to-high PM2.5/yellow dust, even when pollen counts were low.
Study Population
6,468 adults with hay fever who used the AllerSearch smartphone app
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