Fluctuations in grass-pollen counts in relation to nightly inversion and air pollution potential of the atmosphere

1983 ◽  
Vol 27 (2) ◽  
pp. 107-116 ◽  
Author(s):  
Frits Th. M. Spieksma
Keyword(s):  
Air Pollution ◽  
Grass Pollen ◽  
Pollution Potential ◽  
Pollen Counts ◽  
Grass Pollen Counts

Grass Pollen Counts, Air Pollution Levels and Allergic Rhinitis Severity

PEDIATRICS ◽  
2013 ◽  
Vol 132 (Supplement) ◽  
pp. S29-S29 ◽  
Author(s):  
D. A. Andreae ◽  
J. Wang
Keyword(s):  
Air Pollution ◽  
Allergic Rhinitis ◽  
Grass Pollen ◽  
Pollen Counts ◽  
Pollution Levels ◽  
Grass Pollen Counts

Grass Pollen Counts, Air Pollution Levels and Allergic Rhinitis Severity

2012 ◽  
Vol 158 (4) ◽  
pp. 397-404 ◽  
Author(s):  
Isabella Annesi-Maesano ◽  
Sarah Rouve ◽  
Hélène Desqueyroux ◽  
Roger Jankovski ◽  
Jean-Michel Klossek ◽  
...  
Keyword(s):  
Air Pollution ◽  
Allergic Rhinitis ◽  
Grass Pollen ◽  
Pollen Counts ◽  
Pollution Levels ◽  
Grass Pollen Counts

scholarly journals Personalized Pollen Monitoring and Symptom Scores: A Feasibility Study in Grass Pollen Allergic Patients

2021 ◽  
Vol 2 ◽  
Author(s):  
Letty A. de Weger ◽  
Peter Th. W. van Hal ◽  
Bernadette Bos ◽  
Frank Molster ◽  
Marijke Mostert ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Grass Pollen ◽  
Airborne Pollen ◽  
Mobile App ◽  
Pollen Monitoring ◽  
Pollen Counts ◽  
Pollen Concentrations ◽  
Symptom Scores ◽  
Pollen Exposure ◽  
Grass Pollen Counts

Background: Pollen is a major trigger for allergic symptoms in sensitized individuals. Airborne pollen is usually monitored by Hirst type pollen samplers located at rooftop level, providing a general overview of the pollen distribution in the larger surroundings. In this feasibility study, grass pollen-sensitized subjects monitored the pollen in their direct environment using a portable pollen sampler (Pollensniffer) and scored their symptoms, to study the relation between symptom severity and personal grass pollen exposure. For comparison the symptoms were also correlated with pollen collected by the rooftop sampler.Methods: After recruitment 18 participants were screened for grass pollen specific (GP-sIgE) of which 12 were eligible. Nine participants completed the study (May, 2018). They were asked to monitor personal pollen exposure using a Pollensniffer on their way to school, work or other destination, and to score their symptoms via a mobile app on a scale from 0 to 10. Daily pollen concentrations were collected by a Hirst type sampler at rooftop level. Pollen grains were analyzed using a microscope.Results: Three of the four participants with high GP-sIgE (≥9.6 kU/l) reported high symptom scores (>4) and an analysis showed a significant correlation (CC) between eye, nose, and lung symptoms and the grass pollen counts collected by the Pollensniffer, as well as the daily grass pollen concentrations monitored by the rooftop sampler (CC≥0.54). In contrast, the participants with low GP-sIgE levels (<9.6 kU/l) reported low symptom scores (≤4) and often other sensitizations were present. For these subjects, no significant positive correlations (CC<0.3) of symptoms with either grass pollen collected by the personal or the rooftop sampler were found.Conclusion: The results of this feasibility study suggest that correlations between the severity of clinical symptoms of grass pollen allergic patients, and grass pollen counts as determined by the Pollensniffer or a rooftop sampler, is restricted to patients with high GP-sIgE levels, high symptom scores, and no relevant other sensitizations. Based on the low numbers of subjects with severe symptoms included in this feasibility study, no conclusions can be drawn on the performance of the Pollensniffer in relating symptoms and pollen exposure in comparison with the rooftop sampler.Trial Registration: The study was approved by the Committee Medical Ethics of the LUMC (approval numbers: NL63953.058.17/ P17.304).

Influence of the North Atlantic Oscillation on grass pollen counts in Europe

Aerobiologia ◽  
2009 ◽  
Vol 25 (4) ◽  
pp. 321-332 ◽  
Author(s):  
Matt Smith ◽  
Jean Emberlin ◽  
Alicja Stach ◽  
Auli Rantio-Lehtimäki ◽  
Eric Caulton ◽  
...  
Keyword(s):  
North Atlantic Oscillation ◽  
North Atlantic ◽  
Grass Pollen ◽  
Pollen Counts ◽  
The North ◽  
The North Atlantic ◽  
The North Atlantic Oscillation ◽  
Grass Pollen Counts

scholarly journals Grass Pollen Counts in Bahia Blanca, Argentina, during Ten Consecutive Years (2005-2014)

2016 ◽  
Vol 137 (2) ◽  
pp. AB122
Author(s):  
Fabian M. Ramon ◽  
Nadia Arango ◽  
Laura B. Barrionuevo ◽  
Adrian M. Kahn ◽  
Julieta Ribas ◽  
...  
Keyword(s):  
Grass Pollen ◽  
Pollen Counts ◽  
Grass Pollen Counts

Temporal Association Between Nonfatal Self-Directed Violence and Tree and Grass Pollen Counts

2016 ◽  
Vol 77 (09) ◽  
pp. 1160-1167 ◽  
Author(s):  
Haekyung Jeon-Slaughter ◽  
Cynthia A. Claassen ◽  
David A. Khan ◽  
Perry Mihalakos ◽  
Kevin B. Lee ◽  
...  
Keyword(s):  
Grass Pollen ◽  
Temporal Association ◽  
Pollen Counts ◽  
Grass Pollen Counts

Grassland Phenology and Meteorology Co-Influence Grass Pollen Counts in Victoria, Australia

2018 ◽  
Vol 2018 (1) ◽  
Author(s):  
Ha Thanh Nguyen ◽  
Xuanlong Ma ◽  
Ed Newbigin ◽  
Paul Beggs ◽  
Janet Davies ◽  
...  
Keyword(s):  
Grass Pollen ◽  
Pollen Counts ◽  
Grass Pollen Counts

scholarly journals Personalized pollen monitoring and hay fever symptom scores: a feasibility study

2020 ◽  
Author(s):  
Letty de Weger ◽  
Peter TH.W van Hal ◽  
Bernadette Bos ◽  
Frank Molster ◽  
Marijke Mostert ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Grass Pollen ◽  
Airborne Pollen ◽  
Mobile App ◽  
Pollen Monitoring ◽  
Pollen Counts ◽  
Pollen Concentrations ◽  
Symptom Scores ◽  
Pollen Exposure ◽  
Grass Pollen Counts

Abstract Background. Pollen is a major trigger for allergic symptoms in sensitized individuals. Airborne pollen is usually monitored by Hirst type pollen samplers located at rooftop level, providing a general overview of the pollen distribution in the larger surroundings. In this feasibility study, grass pollen-sensitized subjects monitored the pollen in their direct environment using a portable pollen sampler (Pollensniffer) and scored their symptoms, to study the relation between symptom severity and personal grass pollen exposure. For comparison the symptoms were also correlated with pollen collected by the rooftop sampler. Methods. Nine grass pollen-sensitized individuals were enrolled in this study (May 2018) and asked to monitor personal pollen exposure using a Pollensniffer on their way to school, work or other destination, and to score their symptoms via a mobile app on a scale from 0 to 10. Daily pollen concentrations were collected by a Hirst type sampler at rooftop level. Pollen grains were analysed using a microscope. Results. Three of the four participants with high grass pollen-specific (GPS) IgE (>9.6 kU/l) reported high symptom scores (>4) and an analysis showed a significant correlation (CC) between eye, nose and lung symptoms and the grass pollen counts collected by the Pollensniffer, as well as the daily grass pollen concentrations monitored by the rooftop sampler (CC>0.54). In contrast, the participants with low GPS IgE levels (<9.6 kU/l) reported low symptom scores (<4) and often other sensitizations were present. For these subjects, no significant positive correlations (CC<0.3) of symptoms with either grass pollen collected by the personal or the rooftop sampler were found. Conclusion. Our results show that correlations between the severity of clinical symptoms of grass pollen allergic patients, and airborne grass pollen counts as determined by a personal pollen sampler (Pollensniffer) or a rooftop sampler, is restricted to patients with high GPS IgE levels, high symptom scores and no relevant other sensitizations. Based on the number of subjects included in this feasibility study, no conclusions can be drawn on the performance of the personal pollen sampler in relating symptoms and pollen exposure in comparison with the rooftop sampler.Trial registrationThe study was approved by the Committee Medical Ethics of the LUMC (approval numbers: NL63953.058.17/ P17.304).

scholarly journals EVALUASI EFEKTIVITAS TANAMAN DALAM MEREDUKSI POLUSI BERDASARKAN KARAKTER FISIK POHON PADA JALUR HIJAU JALAN PAJAJARAN BOGOR

2019 ◽  
Author(s):  
ABDUL HAFIZH AL-HAKIM
Keyword(s):  
Air Pollution ◽  
Descriptive Analysis ◽  
Economic Value ◽  
Economic Benefits ◽  
Ecological Function ◽  
Tree Planting ◽  
Quality Analysis ◽  
Function Evaluation ◽  
Pollution Potential ◽  
The Road

Pajajaran street is one of the main street in Bogor city which has been famous with a high density of vehicle so it has a of high levels of air pollution potential because of the vehicle emissions. This study was conducted to analysis the effectiveness of plants to absorb pollutants in the road side trees based on an assessment of the physical characteristics of the trees to support the surrounding environment and provide recommendations for increase the ecological function of Pajajaran Bogor road side trees in reducing the air pollution. The method of this study used descriptive analysis, spatial analysis, and air quality analysis used the CITYgreen 5.4. The ecological function evaluation of Pajajaran Bogor road side trees in reducing the air pollution shows there are 958 trees which very appropriate to absorb the air pollution, 238 trees which appropriate to absorb the air pollution, 70 trees which less appropriate to absorb the air pollution, and there is no tree which not appropriate to absorb the air pollution. While the function of absorbing particles evaluation shows there is one tree which very appropriate in absorbing the particles, 1136 trees which appropriate in absorbing the particles, 101 trees which less appropriate in absorbing the particles, and 73 trees which not appropriate in absorbing the particles. The result of analysis used CITYgreen 5.4 shows Pajajaran Street Bogor can reduce pollutants in the amount of 2544 lbs (1,298 ton/year) with economic benefits value by $ 6.268 (Rp75.167.175,12). Pajajaran Street Bogor need to add as many as 485 trees in an area that does not have a tree planting so as to optimally reduce the amount of pollution as much as 1.66 ton/year, equivalent to the economic value of Rp 121 095 216.

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