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Frisk CA, Apangu GP, Petch GM, et al. Atmospheric transport reveals grass pollen dispersion distances. Sci Total Environ. 2022;814:152806doi: 10.1016/j.scitotenv.2021.152806.
Frisk, C. A., Apangu, G. P., Petch, G. M., Adams-Groom, B., & Skjøth, C. A. (2022). Atmospheric transport reveals grass pollen dispersion distances. The Science of the total environment, 814152806. https://doi.org/10.1016/j.scitotenv.2021.152806
Frisk, Carl A, et al. "Atmospheric transport reveals grass pollen dispersion distances." The Science of the total environment vol. 814 (2022): 152806. doi: https://doi.org/10.1016/j.scitotenv.2021.152806
Frisk CA, Apangu GP, Petch GM, Adams-Groom B, Skjøth CA. Atmospheric transport reveals grass pollen dispersion distances. Sci Total Environ. 2022 Jan 01;814:152806. doi: 10.1016/j.scitotenv.2021.152806. Epub 2022 Jan 01. PMID: 34982985.
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Sci Total Environ. 2022 Jan 01;814:152806. doi: 10.1016/j.scitotenv.2021.152806. Epub 2022 Jan 01.

Atmospheric transport reveals grass pollen dispersion distances.

The Science of the total environment

Carl A Frisk, Godfrey P Apangu, Geoffrey M Petch, Beverley Adams-Groom, Carsten A Skjøth

Affiliations

  1. National Pollen and Aerobiological Research Unit, School of Science and the Environment, University of Worcester, Henwick Grove, WR2 6AJ Worcester, UK.; School of Biology and Environmental Sciences, University College Dublin, Belfield, Dublin 4, Ireland. Electronic address: [email protected].
  2. National Pollen and Aerobiological Research Unit, School of Science and the Environment, University of Worcester, Henwick Grove, WR2 6AJ Worcester, UK.; Department of Biointeractions & Crop Protection, Rothamsted Research, West Common, AL5 2JQ Harpenden, UK.
  3. National Pollen and Aerobiological Research Unit, School of Science and the Environment, University of Worcester, Henwick Grove, WR2 6AJ Worcester, UK.

PMID: 34982985 DOI: 10.1016/j.scitotenv.2021.152806

Abstract

Identifying the origin of bioaerosols is of central importance in many biological disciplines, such as human health, agriculture, forestry, aerobiology and conservation. Modelling sources, transportation pathways and sinks can reveal how bioaerosols vary in the atmosphere and their environmental impact. Grass pollen are particularly important due to their widely distributed source areas, relatively high abundance in the atmosphere and high allergenicity. Currently, studies are uncertain regarding sampler representability between distance and sources for grass pollen. Using generalized linear modelling, this study aimed to analyse this relationship further by answering the question of distance-to-source area contribution. Grass pollen concentrations were compared between urban and rural locations, located 6.4 km apart, during two years in Worcestershire, UK. We isolated and refined vegetation areas at 100 m × 100 m using the 2017 CEH Crop Map and conducted atmospheric modelling using HYSPLIT to identify which source areas could contribute pollen. Pollen concentrations were then modelled with source areas and meteorology using generalized linear mixed-models with three temporal variables as random variation. We found that the Seasonal Pollen Integral for grass pollen varied between both years and location, with the urban location having higher levels. Day of year showed higher temporal variation than the diurnal or annual variables. For the urban location, grass source areas within 30 km had positive significant effects in predicting grass pollen concentrations, while source areas within 2-10 km were important for the rural one. The source area differential was likely influenced by an urban-rural gradient that caused differences in the source area contribution. Temperature had positive highly significant effects on both locations while precipitation affected only the rural location. Combining atmospheric modelling, vegetation source maps and generalized linear modelling was found to be a highly accurate tool to identify transportation pathways of bioaerosols in landscape environments.

Copyright © 2022. Published by Elsevier B.V.

Keywords: Bioaerosol; HYSPLIT; Improved grassland; Poaceae; Source Area; Urban-rural gradient

Conflict of interest statement

Declaration of competing interest The authors declare that they do not have any inappropriate financial or personal relationships would bias or influence the research in this paper.

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