Variations in airborne pollen and spores in urban Guangzhou and their relationships with meteorological variables

Airborne pollen causes various types of allergies in humans, and the extent of allergic infection is related to the presence of different types of sporo–pollen and existing meteorological conditions in a certain area. Therefore, an aeropalynological study of 72 airborne samples with a hydrofluoric a...

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Autores principales:	Ananna Rahman, Md Hafijur Rahaman Khan, Chuanxiu Luo, Zijie Yang, Jinzhao Ke, Weiming Jiang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Aeropalynology Seasonal variation Climate Bioaerosol Airborne pollen and spore concentration Science (General) Q1-390 Social sciences (General) H1-99
Acceso en línea:	https://doaj.org/article/32f324d33993401b8d7bef698b6d5860
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spelling	oai:doaj.org-article:32f324d33993401b8d7bef698b6d58602021-12-02T05:02:56ZVariations in airborne pollen and spores in urban Guangzhou and their relationships with meteorological variables2405-844010.1016/j.heliyon.2021.e08379https://doaj.org/article/32f324d33993401b8d7bef698b6d58602021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2405844021024828https://doaj.org/toc/2405-8440Airborne pollen causes various types of allergies in humans, and the extent of allergic infection is related to the presence of different types of sporo–pollen and existing meteorological conditions in a certain area. Therefore, an aeropalynological study of 72 airborne samples with a hydrofluoric acid (HF) treatment was conducted in the Haizhu district of Guangzhou, China, in 2016, to identify the temporal variations in airborne sporo–pollen and the relationship between airborne sporo–pollen concentrations and different meteorological variables in Guangzhou, China. Forty-five types of airborne pollen, seven types of airborne spores, and some undetermined sporo–pollen taxa were identified with two separate plant habitats occurring during this period (from January to December 2016): arboreal pollen (tree-based) and non-arboreal pollen (herb, shrub, aquatic, liane, etc.). Furthermore, the daily records of four key meteorological variables (temperature, precipitation, relative humidity, and wind speed) were acquired to distinguish the pollen seasons and correlated with Spearman's rho test to establish a pollen-weather data book with the seasonal variations. The two leading seasons were identified based on pollen abundance: spring and autumn. Among them, the primary dominant sporo–pollen families during the spring season were Poaceae, Pinaceae, Euphorbiaceae, Moraceae, Microlepia sp., and Polypodiaceae. Conversely, Artemisia sp., Asteraceae, Cyperaceae, Poaceae, Alnus sp., Corylus sp., Myrtaceae, and Rosaceae were the dominant pollen species during autumn. However, few pollen grains were identified in January, May–July, and December. The statistical analysis revealed that temperature had both positive and negative correlations with sporo–pollen concentrations. However, precipitation and relative humidity had a strong impact on the sporo–pollen dispersion and exhibited a negative correlation with the sporo–pollen concentrations. The wind speed had a positive but strong correlation with the sporo–pollen concentration during the study period. Some inconsistent results were found due to environmental variations, vegetation type, and climate change around the study area. This study will facilitate the identification of pollen seasons to prevent the occurrence of pollen-related allergies in the Guangzhou city area.Ananna RahmanMd Hafijur Rahaman KhanChuanxiu LuoZijie YangJinzhao KeWeiming JiangElsevierarticleAeropalynologySeasonal variationClimateBioaerosolAirborne pollen and spore concentrationScience (General)Q1-390Social sciences (General)H1-99ENHeliyon, Vol 7, Iss 11, Pp e08379- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aeropalynology Seasonal variation Climate Bioaerosol Airborne pollen and spore concentration Science (General) Q1-390 Social sciences (General) H1-99
spellingShingle	Aeropalynology Seasonal variation Climate Bioaerosol Airborne pollen and spore concentration Science (General) Q1-390 Social sciences (General) H1-99 Ananna Rahman Md Hafijur Rahaman Khan Chuanxiu Luo Zijie Yang Jinzhao Ke Weiming Jiang Variations in airborne pollen and spores in urban Guangzhou and their relationships with meteorological variables
description	Airborne pollen causes various types of allergies in humans, and the extent of allergic infection is related to the presence of different types of sporo–pollen and existing meteorological conditions in a certain area. Therefore, an aeropalynological study of 72 airborne samples with a hydrofluoric acid (HF) treatment was conducted in the Haizhu district of Guangzhou, China, in 2016, to identify the temporal variations in airborne sporo–pollen and the relationship between airborne sporo–pollen concentrations and different meteorological variables in Guangzhou, China. Forty-five types of airborne pollen, seven types of airborne spores, and some undetermined sporo–pollen taxa were identified with two separate plant habitats occurring during this period (from January to December 2016): arboreal pollen (tree-based) and non-arboreal pollen (herb, shrub, aquatic, liane, etc.). Furthermore, the daily records of four key meteorological variables (temperature, precipitation, relative humidity, and wind speed) were acquired to distinguish the pollen seasons and correlated with Spearman's rho test to establish a pollen-weather data book with the seasonal variations. The two leading seasons were identified based on pollen abundance: spring and autumn. Among them, the primary dominant sporo–pollen families during the spring season were Poaceae, Pinaceae, Euphorbiaceae, Moraceae, Microlepia sp., and Polypodiaceae. Conversely, Artemisia sp., Asteraceae, Cyperaceae, Poaceae, Alnus sp., Corylus sp., Myrtaceae, and Rosaceae were the dominant pollen species during autumn. However, few pollen grains were identified in January, May–July, and December. The statistical analysis revealed that temperature had both positive and negative correlations with sporo–pollen concentrations. However, precipitation and relative humidity had a strong impact on the sporo–pollen dispersion and exhibited a negative correlation with the sporo–pollen concentrations. The wind speed had a positive but strong correlation with the sporo–pollen concentration during the study period. Some inconsistent results were found due to environmental variations, vegetation type, and climate change around the study area. This study will facilitate the identification of pollen seasons to prevent the occurrence of pollen-related allergies in the Guangzhou city area.
format	article
author	Ananna Rahman Md Hafijur Rahaman Khan Chuanxiu Luo Zijie Yang Jinzhao Ke Weiming Jiang
author_facet	Ananna Rahman Md Hafijur Rahaman Khan Chuanxiu Luo Zijie Yang Jinzhao Ke Weiming Jiang
author_sort	Ananna Rahman
title	Variations in airborne pollen and spores in urban Guangzhou and their relationships with meteorological variables
title_short	Variations in airborne pollen and spores in urban Guangzhou and their relationships with meteorological variables
title_full	Variations in airborne pollen and spores in urban Guangzhou and their relationships with meteorological variables
title_fullStr	Variations in airborne pollen and spores in urban Guangzhou and their relationships with meteorological variables
title_full_unstemmed	Variations in airborne pollen and spores in urban Guangzhou and their relationships with meteorological variables
title_sort	variations in airborne pollen and spores in urban guangzhou and their relationships with meteorological variables
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/32f324d33993401b8d7bef698b6d5860
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_version_	1718400702242357248

Variations in airborne pollen and spores in urban Guangzhou and their relationships with meteorological variables

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