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Pollen count

Katharina Bastl, Markus Berger, Karl-Christian Bergmann, Maximilian Kmenta, Uwe Berger
Pollen information as such is highly valuable and was considered so far as a self-evident good free for the public. The foundation for reliable and serious pollen information is the careful, scientific evaluation of pollen content in the air. However, it is essential to state and define now the requirements for pollen data and qualifications needed for institutions working with pollen data in the light of technical developments such as automated pollen counting and various political interests in aerobiology including attempts to finally acknowledge pollen and spores as relevant biological particles in the air worth being considered for pollution and health directives...
October 19, 2016: Wiener Klinische Wochenschrift
Eric Lavigne, Antonio Gasparrini, David M Stieb, Hong Chen, Abdool S Yasseen, Eric Crighton, Teresa To, Scott Weichenthal, Paul J Villeneuve, Sabit Cakmak, Frances Coates, Mark Walker
BACKGROUND: Daily changes in aeroallergens during pregnancy could trigger early labor, but few investigations have evaluated this issue. This study aimed to investigate the association between exposure to aeroallergens during the week preceding birth and the risk of early delivery among preterm and term pregnancies. METHODS: We identified data on 225,234 singleton births that occurred in six large cities in the province of Ontario, Canada, from 2004 to 2011 (April to October) from a birth registry...
September 28, 2016: Epidemiology
Samir Moura Kadri, Rodrigo Zaluski, Ricardo de Oliveira Orsi
In this study, wild honey samples extracted by two different methods (centrifugation and pressed processing) were characterized and compared based on their physicochemical, and nutritional properties, macro- and micro-mineral contents, and pollen counts. Twelve colonies of Africanized Apis mellifera were used; six honey samples were obtained by centrifugation and six by honeycomb press. All physicochemical parameters of honey samples (moisture, pH, total acidity, ash, dry matter, and qualitative absence of hydroxymethylfurfural) were within the limits established by EU legislation, and all parameters in pressed honey were superior (p<0...
March 1, 2017: Food Chemistry
(no author information available yet)
Back to school misery could be compounded for schoolchildren in future as numbers suffering from hay fever caused by ragweed pollen is expected to double in Europe within 35 years.
October 7, 2016: Nursing Children and Young People
Marissa Shams, Stanley Fineman
No abstract text is available yet for this article.
September 13, 2016: Annals of Allergy, Asthma & Immunology
Jakub Nowosad, Alfred Stach, Idalia Kasprzyk, Elżbieta Weryszko-Chmielewska, Krystyna Piotrowska-Weryszko, Małgorzata Puc, Łukasz Grewling, Anna Pędziszewska, Agnieszka Uruska, Dorota Myszkowska, Kazimiera Chłopek, Barbara Majkowska-Wojciechowska
The aim of the study was to create and evaluate models for predicting high levels of daily pollen concentration of Corylus, Alnus, and Betula using a spatiotemporal correlation of pollen count. For each taxon, a high pollen count level was established according to the first allergy symptoms during exposure. The dataset was divided into a training set and a test set, using a stratified random split. For each taxon and city, the model was built using a random forest method. Corylus models performed poorly. However, the study revealed the possibility of predicting with substantial accuracy the occurrence of days with high pollen concentrations of Alnus and Betula using past pollen count data from monitoring sites...
2016: Aerobiologia
Mayumi Fujii, Kiyoshi Makiyama, Kenji Okazaki, Kenichi Hisamatsu
BACKGROUND: Airborne pollen was examined in Ito City, Shizuoka for the purpose of treatment and prophylaxis pollen allergies because the patients with pollen allergy to herbaceous plants have recently increased. METHODS: Setting up a Durham's sampler, we measured airborne pollen identified and classified: Poaceae, Polygonaceae, Amaranthaceae, Urticaceae, Cannabaceae, Ambrosia and Artemisia indica.We studied whether each airborne pollen count has something to do with weather condition (2004-2015)...
August 2016: Arerugī, [Allergy]
Małgorzata Malkiewicz, Anetta Drzeniecka-Osiadacz, Justyna Krynicka
The changes in the main features of early spring tree or shrub pollen seasons are important due to the significant impact on the occurrence of pollen-related allergy symptoms. This study shows the results of pollen monitoring for a period of eleven years (2003-2013) using a Burkard volumetric spore trap. The main characteristics of the hazel, alder, and birch pollination season were studied in Wrocław (SW Poland). The statistical analyses do not show a significant trend of annual total pollen count or shift in timing of the pollen season in the period of analysis...
August 31, 2016: Science of the Total Environment
Florian Wölbing, Julia Kunz, Wolfgang Eberhard Kempf, Cornelia Grimmel, Jörg Fischer, Tilo Biedermann
BACKGROUND: Overlapping seasons and cross reactivity, especially to grass pollen profilin, can hamper the diagnosis of birch pollen allergy. To identify the primary sensitizing allergen and the clinical relevance of cross sensitization, we correlated sensitization profiles with in vitro and in vivo tests, symptom scores and pollen counts. METHODS: 433 patients with positive skin prick test (SPT) to birch pollen were analyzed regarding IgE to major birch and grass pollen allergens Bet v 1 and Phl p 1/p 5 and the profilins Bet v 2 and Phl p 12...
September 2, 2016: Allergy
Liying Sun, Yanhua Xu, Yiwei Wang, Yueyan Lou, Yiping Xu, Yinshi Guo
BACKGROUND: The prevalence of allergic diseases has markedly increased in the last decades. It is therefore important to assess the distribution of airborne pollen, the most important aeroallergen, for allergic disease prevention and control. OBJECTIVE: To identify the species and quantity of airborne pollens, and observe their distribution characteristics in Shanghai, simultaneously using gravitational (Durham Sampler) and volumetric (Rotorod Sampler 40) methods...
August 16, 2016: Asian Pacific Journal of Allergy and Immunology
Reyaz Ahmad Malik, Raghbir Chand Gupta, Vijay Singh, Santosh Bala, Santosh Kumari
Meiotic studies and chromosome data are imperative in order to have an overall germplasm evaluation of a taxon. In the present effort, the meiotic study is carried out in 48 populations belonging to 26 species of Lamiaceae collected from their natural habitats in Kashmir Himalaya, which forms an important part of Northwest Himalaya. Chromosome counts in the five species viz. Dracocephalum nutans (2n = 10), Lycopus europaeus (2n = 22), Marrubium vulgare (2n = 54), Nepeta nervosa (2n = 18) and Salvia sclarea (2n = 22) are first time reported from India...
August 15, 2016: Protoplasma
Rachel Tham, Don Vicendese, Shyamali Dharmage, Rob J Hyndman, Ed Newbigin, Emma Lewis, Molly O'Sullivan, Adrian J Lowe, Philip Taylor, Philip Bardin, Mimi L K Tang, Michael J Abramson, Bircan Erbas
BACKGROUND: Childhood asthma is a significant public health problem and severe exacerbations can result in diminished quality of life and hospitalisation. OBJECTIVE: To examine the contribution of outdoor fungi to childhood and adolescent asthma hospitalisations. METHODS: The Melbourne Air Pollen Children and Adolescent (MAPCAH) study is a case-crossover study of 644 children and adolescents (aged 2-17 years) hospitalised for asthma. MAPCAH collected individual data on human rhinovirus (HRV) infection and sensitisation to Alternaria and Cladosporium; and daily counts of ambient concentrations of fungal spores, pollen and air pollutants...
August 11, 2016: Journal of Allergy and Clinical Immunology
Taylor J Conroy, Evan C Palmer-Young, Rebecca E Irwin, Lynn S Adler
Bumble bees (genus Bombus) are globally important insect pollinators, and several species have experienced marked declines in recent years. Both nutritional limitation and pathogens may have contributed to these declines. While each of these factors may be individually important, there may also be synergisms where nutritional stress could decrease pathogen resistance. Understanding interactions between bumble bees, their parasites, and food availability may provide new insight into the causes of declines. In this study, we examined the combined impacts of pollen and nectar limitation on Crithidia, a common gut parasite in Bombus impatiens Cresson...
October 2016: Environmental Entomology
Kefei Chen, Gary Glonek, Alana Hansen, Susan Williams, Jonathan Tuke, Amy Salter, Peng Bi
BACKGROUND: Air pollution can have adverse health effects on asthma sufferers, but the effects vary with geographic, environmental and population characteristics. There has been no long time series study in Australia to quantify the effects of environmental factors including pollen on asthma hospitalisations. OBJECTIVES: This study aimed to assess the seasonal impact of air pollutants and aeroallergens on the risk of asthma hospital admissions for adults and children in Adelaide, South Australia...
August 11, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
V M Savchenko, S N Belyaeva, M I Govorun, M E Pirogova
AIM: The objective of the present study was to evaluate the influence of pollen of Mediterranean Cypress (Cupressus sempervirens) on the effectiveness of the spa and health resort-based treatment (SHRT) of the patients with broncho-pulmonary pathology at the southern coast of the Crimea (SCC). MATERIAL AND METHODS: This article presents the results of the analysis of the data on 122 patients presenting with broncho-pulmonary pathology who received SHRT under the conditions of the Southern Coast of the Crimea...
2016: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
Girish Vitalpur, Shaylar Padgett, Kirsten M Kloepfer, James Slaven, Frederick E Leickly
No abstract text is available yet for this article.
September 2016: Annals of Allergy, Asthma & Immunology
Hoseob Kim, Yoonhyung Park, Kwanjun Park, Byoungin Yoo
OBJECTIVES: This study, different from the past researches, has been conducted in all age groups to understand the association between air pollutants, pollen risk indexes, and outpatients with allergic rhinitis (AR), asthma, and atopic dermatitis (AD). METHODS: Data on air pollutants, pollen risk indexes, and outpatients with each disease were collected from 2003 through 2011 to verify the association between them. All data are time-series materials that have been observed by time (day) and region, and are in a nonlinear shape...
June 2016: Osong Public Health and Research Perspectives
Hyun Jin Min, Young Ho Hong, Hoon Shik Yang, Kyung Soo Kim
BACKGROUND: Eosinophil cationic protein (ECP) is present in eosinophil granules. It has been associated with eosinophil-associated disorders. OBJECTIVE: We compared serum ECP levels in allergic and non-allergic rhinitis patients and evaluated the association with the eosinophil count and the total IgE level. METHOD: We retrospectively reviewed medical records and categorized enrolled patients into the allergic (AR) and non-allergic rhinitis (NAR) groups...
June 30, 2016: Asian Pacific Journal of Allergy and Immunology
Viviane Sinébou, Muriel Quinet, Bonaventure C Ahohuendo, Anne-Laure Jacquemart
Conservation strategies are urgently needed in Tropical areas for widely used tree species. Increasing numbers of species are threatened by overexploitation and their recovery might be poor due to low reproductive success and poor regeneration rates. One of the first steps in developing any conservation policy should be an assessment of the reproductive biology of species that are threatened by overexploitation. This work aimed to study the flowering biology, pollination and breeding system of V. doniana, a multipurpose threatened African tree, as one step in assessing the development of successful conservation strategies...
2016: AoB Plants
Damien M Hicks, Pierre Ouvrard, Katherine C R Baldock, Mathilde Baude, Mark A Goddard, William E Kunin, Nadine Mitschunas, Jane Memmott, Helen Morse, Maria Nikolitsi, Lynne M Osgathorpe, Simon G Potts, Kirsty M Robertson, Anna V Scott, Frazer Sinclair, Duncan B Westbury, Graham N Stone
Planted meadows are increasingly used to improve the biodiversity and aesthetic amenity value of urban areas. Although many 'pollinator-friendly' seed mixes are available, the floral resources these provide to flower-visiting insects, and how these change through time, are largely unknown. Such data are necessary to compare the resources provided by alternative meadow seed mixes to each other and to other flowering habitats. We used quantitative surveys of over 2 million flowers to estimate the nectar and pollen resources offered by two exemplar commercial seed mixes (one annual, one perennial) and associated weeds grown as 300m2 meadows across four UK cities, sampled at six time points between May and September 2013...
2016: PloS One
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