Size distribution of allergenic Cry j 2 released from airborne Cryptomeria japonica pollen grains during the pollen scattering seasons

Gong, Xiumin; Wang, Qingyue; Lu, Shengyong; Suzuki, Miho; Nakajima, Daisuke; Sekiguchi, Kazuhiko; Miwa, Makoto

doi:10.1007/s10453-016-9450-6

Cited by 11 publications

(14 citation statements)

References 21 publications

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“…Atmospheric pollutants discharged from anthropogenic sources as emissions of the gaseous substance and ambient fine particles of PM 2.5 (particulate matter with a 50% cut-off aerodynamic diameter < 2.5 μm) [1], the radioactive materials released by the accidents of the nuclear power plants and the chemical plants. Moreover, pollen grains [2], yellow sand dust, volcanic explosion, and a brush fire are also the origins of air pollution. Atmospheric pollutants that emitted from natural and anthropogenic sources can change the composition of ambient air affecting air quality and human health [3].…”

Section: Introductionmentioning

confidence: 99%

Real-Time Atmospheric Monitoring of Urban Air Pollution Using Unmanned Aerial Vehicles

Wang

2019

WIT Transactions on Ecology and the Environment

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Unmanned aerial vehicles (UAVs), or Drones, have recently begun to appear frequently in the television, newspapers and social media for their applicability in various fields of science. Although UAVs have been used in a wide range of atmospheric science, there are few reports of using UAVs for lower layer atmospheric observation available. In my laboratory, harmful black carbon (BC) in ambient particulates was determined based on the observation results of harmful chemicals in the lower boundary layer and atmospheric conditions using UAVs. The ambient particulates in the lower layer atmosphere based on heights can be measured by UAVs at the optional location. In this paper, I want to report the lower layer atmospheric observation of ambient particulates with their chemical species for the first time in Japan. The data transfer devices were loaded into UAVs for the transformation of the results measured at different heights during 2018 in order to develop real-time observations of PM2.5 and PM10 in the lower layer atmosphere of the suburban and urban areas of Saitama city, Japan. Air pollutants transported from the urban areas of metropolitan Tokyo were determined from the real-time results of measurements in the vanity in the morning, noon and afternoon. High concentrations of PM2.5 and PM10 were observed around noon in the rural area of Yorii-machi, Saitama prefecture on December 5, 2017 which might be influenced by the polluted air mass from the urban atmosphere. It is clear that different air pollution phenomena can be observed easily by using UAVs real-time atmospheric monitoring.

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Section: Introductionmentioning

confidence: 99%

Real-Time Atmospheric Monitoring of Urban Air Pollution Using Unmanned Aerial Vehicles

Wang

2019

WIT Transactions on Ecology and the Environment

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“…For example, inhalation of allergenic pollen can induce IgE-mediated hypersensitive reactions in sensitized individuals . Globally, atmospheric pollen influences climate by reflecting and absorbing solar and terrestrial radiation (Spänkuch et al, 2000;Guyon et al, 2004), and/or by serving as ice nuclei (IN) and cloud condensation nuclei (CCN) (Pöschl et al, 2010;Pope, 2010). Finally, atmospheric pollen is involved in global cycling of substances (Després et al, 2012) by long-range transport and subsequent settlement to the planetary surface (pedosphere) by dry or wet deposition, i.e., sedimentation or precipitation, respectively.…”

Section: Introductionmentioning

confidence: 99%

Plant assemblages in atmospheric deposition

Woo

Yamamoto

2019

Atmos. Chem. Phys.

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Abstract. Plants disperse spores, pollen, and fragments into the atmosphere. The emitted plant particles return to the pedosphere by sedimentation (dry deposition) and/or by precipitation (wet deposition) and constitute part of the global cycle of substances. However, little is known regarding the taxonomic diversities and flux densities of plant particles deposited from the atmosphere. Here, plant assemblages were examined in atmospheric deposits collected in Seoul in South Korea. A custom-made automatic sampler was used to collect dry and wet deposition samples for which plant assemblages and quantities were determined using high-throughput sequencing and quantitative polymerase chain reaction (PCR) with universal plant-specific primers targeting the internal transcribed spacer 2 (ITS2) region. Dry deposition was dominant for atmospheric deposition of plant particles (87 %). The remaining 13 % was deposited by precipitation, i.e., wet deposition, via rainout (in-cloud scavenging) and/or washout (below-cloud scavenging). Plant assemblage structures did not differ significantly between dry and wet deposition, indicating a possibility that washout, which is possibly taxon-independent, predominated rainout, which is possibly taxon-dependent, for wet deposition of atmospheric plant particles. A small number of plant genera were detected only in wet deposition, indicating that they might be specifically involved in precipitation through acting as nucleation sites in the atmosphere. Future interannual monitoring will control for the seasonality of atmospheric plant assemblages observed at our sampling site. Future global monitoring is also proposed to investigate geographical differences and investigate whether endemic species are involved in plant-mediated bioprecipitation in regional ecological systems.

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“…Alan et al (2020), Á lvarez-López et al (2020,Beck et al (2013),Brito et al (2011), Buters et al (2008), De Linares et al (2010, 2019), Fernández-González et al (2013, 2019a,Galan et al (2013),Gong et al (2017), Jochner et al (2015,Plaza et al (2016), Rodríguez-Rajo et al (2011), Schäppi et al (1997b, Wang et al (2013a, b) Meteorological factors are not associated with potency Alcazar et al (2015) Altitude affects pollen potency Jochner et al (2015) Proximity to ocean affects pollen potency Fernández-González et al (2019a) Long distance dispersal of pollen can affect pollen potency because potency varies in pollen from different locations Alan et al (2020), Á lvarez-López et al (2020), Buters et al (2012), Fernández-González et al (2019a), Galan et al (2013) and Jochner et al (2015)Ozone exposure increases pollen potencyBeck et al (2013) …”

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confidence: 99%

‘Pollen potency’: the relationship between atmospheric pollen counts and allergen exposure

et al. 2021

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Pollen allergies are responsible for a considerable global public health burden, and understanding exposure is critical to addressing the health impacts. Atmospheric pollen counts are routinely used as a predictor of risk; however, immune responses are triggered by specific proteins known as allergens, which occur both within and on the surface of the pollen grain. The ratio between atmospheric pollen counts and allergen concentrations (‘pollen potency’) has been shown to be inconsistent, with potentially important implications for pollen monitoring practice. Despite this, there has been no previous synthesis of the literature and our understanding of the factors that influence pollen potency remains poor. We conducted a scoping review with the aim of deriving a current understanding of: (a) the factors that influence pollen potency; (b) its variation through time, between taxa and by location; and (c) the implications for pollen monitoring practice. Our synthesis found that pollen potency is highly variable within and between seasons, and between locations; however, much of this variability remains unexplained and has not been deeply investigated. We found no predictable pollen potency patterns relating to taxon, geography or time, and inconclusive evidence regarding possible driving factors. With respect to human health, the studies in our synthesis generally reported larger associations between atmospheric allergen loads and allergy symptoms than whole pollen counts. This suggests that pollen potency influences public health risk; however, the evidence base remains limited. Further research is needed to better understand both pollen potency variability and its implications for health.

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Size distribution of allergenic Cry j 2 released from airborne Cryptomeria japonica pollen grains during the pollen scattering seasons

Cited by 11 publications

References 21 publications

Real-Time Atmospheric Monitoring of Urban Air Pollution Using Unmanned Aerial Vehicles

Real-Time Atmospheric Monitoring of Urban Air Pollution Using Unmanned Aerial Vehicles

Plant assemblages in atmospheric deposition

‘Pollen potency’: the relationship between atmospheric pollen counts and allergen exposure

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