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

Use of face masks and allergic rhinitis from ragweed: why mention only total pollen count and not air pollution levels?

2021 ◽  
Author(s):  
Gennaro Liccardi ◽  
Matteo Martini ◽  
Maria Beatrice Bilò ◽  
Manlio Milanese ◽  
Paola Rogliani
Keyword(s):  
Air Pollution ◽  
Allergic Rhinitis ◽  
Pollen Count ◽  
Pollution Levels ◽  
Total Pollen

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

Boys With Allergic Rhinitis Who Were Sensitized to Blomia tropicalis Are the Most Vulnerable to Air Pollutants

2019 ◽  
Vol 33 (6) ◽  
pp. 730-736 ◽  
Author(s):  
Yeak-Wun Quek ◽  
Chun-Yi Chuang ◽  
Hui-Hsien Pan ◽  
Hai-Lun Sun ◽  
Ko-Huang Lue ◽  
...  
Keyword(s):  
Air Pollution ◽  
Allergic Rhinitis ◽  
Clinical Study ◽  
Epidemiological Study ◽  
Air Pollutants ◽  
Drug Prescriptions ◽  
House Dust Mites ◽  
National Database ◽  
Blomia Tropicalis ◽  
Pollution Levels

Background Studies have confirmed the detrimental effects of air pollutants on allergic disease patients. However, individuals who are most vulnerable have not been completely identified. Methods Clinical study: During 2007 to 2011, 225 children aged 6 to 15 years with allergic rhinitis (AR) were recruited from a hospital in Taichung City, Taiwan. They were classified based on sensitivity to house dust mites, such as Dermatophagoides pteronyssinus, Blomia tropicalis (Bt), or Dermatophagoides microceras. Correlations between Pediatric Rhinoconjunctivitis Quality of Life Questionnaire (PRQLQ) scores, allergen-specific immunoglobulin E levels, and air pollution levels were evaluated. Epidemiological study: Records of 9868 children with AR who were matched for study years, age, and city of the clinical study were obtained from a national database. Correlations between clinic visits for AR, topical AR drug prescriptions, and air pollution levels were evaluated. The air pollutants included sulfur dioxide (SO2), carbon monoxide (CO), ozone (O3), particles <10 μm in diameter (PM10), particles <2.5 μm in diameter (PM2.5), nitric oxide (NO), nitrogen dioxide (NO2), nonmethane hydrocarbon (NMHC), and methane (CH4). Results Epidemiological study: CO, NO, NO2, and CH4 levels were significantly correlated with topical AR drug prescriptions in boys. However, in girls, only CH4 level was significantly correlated. Clinical study: Positive correlations between the PRQLQ score and air pollutants were noted in boys but not in girls. After adjusting for confounders, correlations between CO, PM2.5, and NO2 levels were noted in boys sensitized to Bt but not in those sensitized to other mites. Conclusion Boys with AR were more vulnerable to air pollutants than girls. Bt-sensitized boys with AR were more vulnerable to air pollutants than girls and those sensitized to other mites.

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