ArticleEnvironmental health : a global access science source2022
Birch pollen, air pollution and their interactive effects on airway symptoms and peak expiratory flow in allergic asthma during pollen season - a panel study in Northern and Southern Sweden.
Article in Environmental health : a global access science source, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 31 citations in OpenAlex.
- Short-term exposure to ambient fine particulate pollution aggravates ventilator-associated pneumonia in pediatric intensive care patients undergoing cardiovascular surgeries.Environmental health : a global access science source · 2023Trial
- Hay Fever Symptom Burden From Grass Pollen: Implications for Public Health Warning Thresholds.GeoHealth · 2026Article
- Centrifugal microfluidics for rapid target analyte quantification in airborne bioaerosols.Lab on a chip · 2026Article
- Association of COVID-19 with hay fever symptoms and preventive behaviors using a digital cohort study with AllerSearch.Scientific reports · 2026Article
- The association of climate-induced stressors on risk of negative sentiment: An analysis from 462 million geotagged tweets in Europe.iScience · 2025Article
- Genetic mechanisms of pollinosis: interactions between genes and environmental factors.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025Review
- Chinese Expert Consensus on the Impact of Ambient Air Pollution on Allergic Rhinitis and Recommendations for Mitigation Strategies.Allergy, asthma & immunology research · 2025Review
- Association between climate indicators and hay fever incidence in children and adolescents in Freiburg, Germany.Frontiers in public health · 2025Article
- Article
- [Study on allergen components of birch pollen in Beijing area].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2024Article
- Smoking, Urban Housing and Work-Aggravated Asthma are Associated with Asthma Severity in a Cross-Sectional Observational Study.Journal of asthma and allergy · 2024Article
- The Effects of Wildfire Smoke on Asthma and Allergy.Current allergy and asthma reports · 2023Review
- The Concept of One Health for Allergic Diseases and Asthma.Allergy, asthma & immunology research · 2023Review
- Assessing the national burden of allergic asthma by web-search data, pollen counts, and drug prescriptions in Germany and Sweden.The World Allergy Organization journal · 2023Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEvidence of the role of interactions between air pollution and pollen exposure in subjects with allergic asthma is limited and need further exploration to promote adequate preventive measures. The objective of this study was to assess effects of exposure to ambient air pollution and birch pollen on exacerbation of respiratory symptoms in subjects with asthma and allergy to birch.
methodsThirty-seven subjects from two Swedish cities (Gothenburg and Umeå) with large variation in exposure to both birch-pollen and air pollutants, participated in the study. All subjects had confirmed allergy to birch and self-reported physician-diagnosed asthma. The subjects recorded respiratory symptoms such as rhinitis or eye irritation, dry cough, dyspnoea, the use of any asthma or allergy medication and peak respiratory flow (PEF), daily for five consecutive weeks during two separate pollen seasons and a control season without pollen. Nitrogen oxides (NO
resultsDuring pollen seasons all symptoms and medication use were higher, and PEF was reduced in the subjects. In regression analysis, exposure to pollen at lags 0 to 2 days, and lags 0 to 6 days was associated with increased ORs of symptoms and decreased RRs for PEF. Pollen and air pollution interacted in some cases; during low pollen exposure, there were no associations between air pollution and symptoms, but during high pollen exposure, O
conclusionsPollen and air pollutants interacted to increase the effect of air pollution on respiratory symptoms in allergic asthma. Implementing the results from this study, advisories for individuals with allergic asthma could be improved, minimizing the morbidities associated with the condition.
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