Long-term pollen trends and associations between pollen phenology and seasonal climate in Atlanta, Georgia (1992-2018)

Manangan, Arie; Brown, Claudia; Saha, Shubhayu; Bell, Jesse E.; Hess, Jeremy; Uejio, Chris K; Fineman, Stanley; Schramm, Paul

doi:10.1016/j.anai.2021.07.012

Cited by 22 publications

(25 citation statements)

References 28 publications

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“…A recent study in Georgia, USA, showed that the concentration of several tree pollen taxa increased over the last 27 years, and multiple species started to release their pollens earlier. The authors have concluded that early pollen discharge of some species could be associated with warmer temperatures 65 . In a retrospective analysis of datasets lasting 20 years or longer from 17 locations in the northern hemisphere showed that increases in daily minimum and maximum temperatures over time were associated with increases in both pollen load and duration of pollen season 66 .…”

Section: Effects Of Climate Change On Asthma and Allergic Rhinitismentioning

confidence: 99%

“…The authors have concluded that early pollen discharge of some species could be associated with warmer temperatures. 65 In a retrospective analysis of datasets lasting 20 years or longer from 17 locations in the northern hemisphere showed that increases in daily minimum and maximum temperatures over time were associated with increases in both pollen load and duration of pollen season. 66 In another study, an approximately twenty days earlier start date in pollen season, lengthening of the pollen season by about eight days over the same period and an increase of pollen concentration by twenty‐one percent across North America were found and those findings were associated with increased temperatures.…”

Section: Effects Of Climate Change On Asthma and Allergic Rhinitismentioning

confidence: 99%

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Epithelial barrier hypothesis: Effect of the external exposome on the microbiome and epithelial barriers in allergic disease

Sözener

Öztürk

Çerçi

et al. 2022

Allergy

221

166

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Environmental exposure plays a major role in the development of allergic diseases.The exposome can be classified into internal (e.g., aging, hormones, and metabolic processes), specific external (e.g., chemical pollutants or lifestyle factors), and general external (e.g., broader socioeconomic and psychological contexts) domains, all of which are interrelated. All the factors we are exposed to, from the moment of conception to death, are part of the external exposome. Several hundreds of thousands of new chemicals have been introduced in modern life without our having a full understanding of their toxic health effects and ways to mitigate these effects.Climate change, air pollution, microplastics, tobacco smoke, changes and loss of biodiversity, alterations in dietary habits, and the microbiome due to modernization, urbanization, and globalization constitute our surrounding environment and external exposome. Some of these factors disrupt the epithelial barriers of the skin and mucosal surfaces, and these disruptions have been linked in the last few decades to the increasing prevalence and severity of allergic and inflammatory diseases such as atopic dermatitis, food allergy, allergic rhinitis, chronic rhinosinusitis, eosinophilic

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Section: Effects Of Climate Change On Asthma and Allergic Rhinitismentioning

confidence: 99%

Section: Effects Of Climate Change On Asthma and Allergic Rhinitismentioning

confidence: 99%

Epithelial barrier hypothesis: Effect of the external exposome on the microbiome and epithelial barriers in allergic disease

Sözener

Öztürk

Çerçi

et al. 2022

Allergy

221

166

View full text Add to dashboard Cite

show abstract

“…Additionally, climate change was identified to alter the aeroallergen season length and timing. 71,72 As we observed that aeroallergens played a crucial role in pediatric asthma exacerbations, future studies evaluating asthma exacerbations in the context of climate change could minimize unmeasured biases.…”

Section: Discussionmentioning

confidence: 95%

Joint association between ambient air pollutant mixture and pediatric asthma exacerbations

Puvvula

Poole

González

et al. 2022

Environmental Epidemiology

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Background: Exposure to air pollutants is known to exacerbate asthma, with prior studies focused on associations between single pollutant exposure and asthma exacerbations. As air pollutants often exist as a complex mixture, there is a gap in understanding the association between complex air pollutant mixtures and asthma exacerbations. We evaluated the association between the air pollutant mixture (52 pollutants) and pediatric asthma exacerbations. Method: This study focused on children (age ≤ 19 years) who lived in Douglas County, Nebraska, during 2016-2019. A seasonal-scale joint association between the outdoor air pollutant mixture adjusting for potential confounders (temperature, precipitation, wind speed, and wind direction) in relation to pediatric asthma exacerbation-related emergency department (ED) visits was evaluated using the generalized weighted quantile sum (qWQS) regression with repeated holdout validation. Results: We observed associations between air pollutant mixture and pediatric asthma exacerbations during spring (lagged by 5 days), summer (lag 0-5 days), and fall (lag 1-3 days) seasons. The estimate of the joint outdoor air pollutant mixture effect was higher during the summer season (adjusted-β WQS = 1.11, 95% confidence interval [CI]: 0.66, 1.55), followed by spring (adjusted-β WQS = 0.40, 95% CI: 0.16, 0.62) and fall (adjusted-β WQS = 0.20, 95% CI: 0.06, 0.33) seasons. Among the air pollutants, PM 2.5 , pollen, and mold contributed higher weight to the air pollutant mixture. Conclusion: There were associations between outdoor air pollutant mixture and pediatric asthma exacerbations during the spring, summer, and fall seasons. Among the 52 outdoor air pollutant metrics investigated, PM 2.5 , pollen (sycamore, grass, cedar), and mold (Helminthosporium, Peronospora, and Erysiphe) contributed the highest weight to the air pollutant mixture.

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“…As for the hazard of plant allergen, due to the global warming observed over the past 70 years, there have been significant changes in regional species composition ( 52 ), phenological dates ( 20 ), and ecological functions ( 53 ). These changes have subsequently affected the start, duration, and intensity of regional pollen season ( 21 – 23 ). A recent study estimated that under a warming scenario of SSP5 8.5, the increasing concentration of atmospheric CO 2 would increase the likelihood of seasonal allergies throughout the continental USA, with end-of-century emissions being increased up to 200% ( 54 ).…”

Section: Discussionmentioning

confidence: 99%

“…As for the pollen allergy, the flowering dates of Morus, Robinia and Cerasus yedoensis across many regions have already advanced ( 19 , 20 ), the pollen seasons of Tilia sp. L., Quercus and Platanus have prolonged ( 21 – 23 ), and the allergenicities of Betula and Juniperus have increased ( 22 , 23 ). How to properly handle the pollen allergy risk, has become more and more important.…”

Section: Introductionmentioning

confidence: 99%

Tourist risk assessment of pollen allergy in tourism attractions: A case study in the Summer Palace, Beijing, China

Zhou

Dai

Liu

et al. 2022

Front. Public Health

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Pollen allergy has already been an increasingly prominent ecosystem disservice in tourism attractions. However, few studies have assessed the tourist risk of pollen allergy through integrating multidisciplinary knowledge of ecology, medicine, phenology, and risk management. Basing on the conceptual framework of risk assessment proposed by UNISDR, we first established an index system of pollen-allergy risk for tourists in attractions and outlined assessment methods 18 available indexes were put forward to cover three aspects: hazard of plant allergen, tourist vulnerability, and resilience of assessment units. Subsequently, taking the Summer Palace as the case study area, we conducted a tourist risk assessment of pollen allergy. Values of nine available indexes were obtained via ecological investigation, phenological observation, and data mining of visitors' logs on Sina Weibo. Risk levels of spring pollen allergy for tourists in different assessment units were revealed by combining the green zone allergenicity index model and three-dimensional risk assessment matrix. The results showed that: (1) There were seven primary pollen-allergenic plants in the Summer Palace, including Platycladus orientalis, Sabina chinensis, Salix babylonica, Pinus tabulaeformis, Populus tomentosa Carr, Morus alba L. and Fraxinus chinesis, among which Platycladus orientalis and Salix babylonica were the highest allergenic. (2) Among 18 spots, tourists faced the highest risk level of pollen allergy in spring at three spots, namely the Hall of Serenity, Hall of Benevolence and Longevity, and Gallery of Literary and Prosperity. (3) The two routes of the Long Corridor and Longevity Hill scored high on the risk level. (4) Among four areas, risk levels of the Front-hill and Rear-hill areas were high. Given the increasing spatial-temporal uncertainty of pollen allergy and tourist behaviors under global warming and urbanization, the related monitoring should be strengthened in the future. Furthermore, the dynamic and improved assessment of pollen-allergy risk should be institutionalized and be integrated into the evaluation of tourism experience quality. Tourism administration should make full use of relevant assessment results and conduct more effective risk communication.

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Long-term pollen trends and associations between pollen phenology and seasonal climate in Atlanta, Georgia (1992-2018)

Cited by 22 publications

References 28 publications

Epithelial barrier hypothesis: Effect of the external exposome on the microbiome and epithelial barriers in allergic disease

Epithelial barrier hypothesis: Effect of the external exposome on the microbiome and epithelial barriers in allergic disease

Joint association between ambient air pollutant mixture and pediatric asthma exacerbations

Tourist risk assessment of pollen allergy in tourism attractions: A case study in the Summer Palace, Beijing, China

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