Atmospheric conditions during high ragweed pollen concentrations in Zagreb, Croatia

2012 ◽  
Vol 56 (6) ◽  
pp. 1145-1158 ◽  
Author(s):  
Maja Telišman Prtenjak ◽  
Lidija Srnec ◽  
Renata Peternel ◽  
Valentina Madžarević ◽  
Ivana Hrga ◽  
...  
Keyword(s):  
Ragweed Pollen ◽  
Atmospheric Conditions ◽  
Pollen Concentrations

scholarly journals Erratum to: Atmospheric conditions during high ragweed pollen concentrations in Zagreb, Croatia

2012 ◽  
Vol 56 (6) ◽  
pp. 1159-1159
Author(s):  
Maja Telišman Prtenjak ◽  
Lidija Srnec ◽  
Renata Peternel ◽  
Valentina Madžarević ◽  
Ivana Hrga ◽  
...  
Keyword(s):  
Ragweed Pollen ◽  
Atmospheric Conditions ◽  
Pollen Concentrations

Post-Katrina Changes in Ragweed Pollen Concentrations and Sensitivity Levels

2009 ◽  
Vol 123 (2) ◽  
pp. S96-S96
Author(s):  
W.E. Davis ◽  
H. Weaver ◽  
E. Levetin
Keyword(s):  
Ragweed Pollen ◽  
Pollen Concentrations

Areas Within Isopleths of Ragweed Pollen Concentrations From Local Sources

1969 ◽  
Vol 19 (1) ◽  
pp. 92-98 ◽  
Author(s):  
Gilbert S. Raynor ◽  
Janet V. Hayes ◽  
Eugene C. Ogden
Keyword(s):  
Ragweed Pollen ◽  
Pollen Concentrations ◽  
Local Sources

scholarly journals Ragweed pollen production and dispersion modelling within a regional climate system, calibration and application over Europe

2016 ◽  
Vol 13 (9) ◽  
pp. 2769-2786 ◽  
Author(s):  
Li Liu ◽  
Fabien Solmon ◽  
Robert Vautard ◽  
Lynda Hamaoui-Laguel ◽  
Csaba Zsolt Torma ◽  
...  
Keyword(s):  
Exposure Time ◽  
Airborne Pollen ◽  
Regional Climate ◽  
Ambrosia Artemisiifolia ◽  
Plant Distribution ◽  
Ragweed Pollen ◽  
Pollen Production ◽  
Common Ragweed ◽  
Community Land Model ◽  
Pollen Concentrations

Abstract. Common ragweed (Ambrosia artemisiifolia L.) is a highly allergenic and invasive plant in Europe. Its pollen can be transported over large distances and has been recognized as a significant cause of hay fever and asthma (D'Amato et al., 2007; Burbach et al., 2009). To simulate production and dispersion of common ragweed pollen, we implement a pollen emission and transport module in the Regional Climate Model (RegCM) version 4 using the framework of the Community Land Model (CLM) version 4.5. In this online approach pollen emissions are calculated based on the modelling of plant distribution, pollen production, species-specific phenology, flowering probability, and flux response to meteorological conditions. A pollen tracer model is used to describe pollen advective transport, turbulent mixing, dry and wet deposition. The model is then applied and evaluated on a European domain for the period 2000–2010. To reduce the large uncertainties notably due to the lack of information on ragweed density distribution, a calibration based on airborne pollen observations is used. Accordingly a cross validation is conducted and shows reasonable error and sensitivity of the calibration. Resulting simulations show that the model captures the gross features of the pollen concentrations found in Europe, and reproduce reasonably both the spatial and temporal patterns of flowering season and associated pollen concentrations measured over Europe. The model can explain 68.6, 39.2, and 34.3 % of the observed variance in starting, central, and ending dates of the pollen season with associated root mean square error (RMSE) equal to 4.7, 3.9, and 7.0 days, respectively. The correlation between simulated and observed daily concentrations time series reaches 0.69. Statistical scores show that the model performs better over the central Europe source region where pollen loads are larger and the model is better constrained. From these simulations health risks associated to common ragweed pollen spread are evaluated through calculation of exposure time above health-relevant threshold levels. The total risk area with concentration above 5 grains m−3 takes up 29.5 % of domain. The longest exposure time occurs on Pannonian Plain, where the number of days per year with the daily concentration above 20 grains m−3 exceeds 30.

scholarly journals Predicting daily ragweed pollen concentrations using Computational Intelligence techniques over two heavily polluted areas in Europe

2014 ◽  
Vol 476-477 ◽  
pp. 542-552 ◽  
Author(s):  
Zoltán Csépe ◽  
László Makra ◽  
Dimitris Voukantsis ◽  
István Matyasovszky ◽  
Gábor Tusnády ◽  
...  
Keyword(s):  
Computational Intelligence ◽  
Ragweed Pollen ◽  
Pollen Concentrations

Biogeographical drivers of ragweed pollen concentrations in Europe

2017 ◽  
Vol 133 (1-2) ◽  
pp. 277-295 ◽  
Author(s):  
István Matyasovszky ◽  
László Makra ◽  
Gábor Tusnády ◽  
Zoltán Csépe ◽  
László G. Nyúl ◽  
...  
Keyword(s):  
Ragweed Pollen ◽  
Pollen Concentrations

Evolution of ragweed pollen concentrations, sensitization and related allergic clinical symptoms in Parma (northern Italy)

Aerobiologia ◽  
2011 ◽  
Vol 28 (3) ◽  
pp. 347-354 ◽  
Author(s):  
Roberto Albertini ◽  
Manuela Ugolotti ◽  
Silvia Peveri ◽  
Maria Teresa Valenti ◽  
Isabella Usberti ◽  
...  
Keyword(s):  
Clinical Symptoms ◽  
Northern Italy ◽  
Ragweed Pollen ◽  
Pollen Concentrations

scholarly journals Estimates of common ragweed pollen emission and dispersion over Europe using RegCM-pollen model

2015 ◽  
Vol 12 (21) ◽  
pp. 17595-17641 ◽  
Author(s):  
L. Liu ◽  
F. Solmon ◽  
R. Vautard ◽  
L. Hamaoui-Laguel ◽  
Cs. Zs. Torma ◽  
...  
Keyword(s):  
Exposure Time ◽  
Invasive Plant ◽  
Airborne Pollen ◽  
Ambrosia Artemisiifolia ◽  
Plant Distribution ◽  
Ragweed Pollen ◽  
Pollen Emission ◽  
Common Ragweed ◽  
Community Land Model ◽  
Pollen Concentrations

Abstract. Common ragweed (Ambrosia artemisiifolia L.) is a highly allergenic and invasive plant in Europe. Its pollen can be transported over large distances and has been recognized as a significant cause of hayfever and asthma (D'Amato et al., 2007; Burbach et al., 2009). To simulate production and dispersion of common ragweed pollen, we implement a pollen emission and transport module in the Regional Climate Model (RegCM) version 4 using the framework of the Community Land Model (CLM) version 4.5. In the online model environment where climate is integrated with dispersion and vegetation production, pollen emissions are calculated based on the modelling of plant distribution, pollen production, species-specific phenology, flowering probability, and flux response to meteorological conditions. A pollen tracer model is used to describe pollen advective transport, turbulent mixing, dry and wet deposition. The model is then applied and evaluated on a European domain for the period 2000–2010. To reduce the large uncertainties notably due to ragweed density distribution on pollen emission, a calibration based on airborne pollen observations is used. Resulting simulations show that the model captures the gross features of the pollen concentrations found in Europe, and reproduce reasonably both the spatial and temporal patterns of flowering season and associated pollen concentrations measured over Europe. The model can explain 68.6, 39.2, and 34.3 % of the observed variance in starting, central, and ending dates of the pollen season with associated root mean square error (RMSE) equal to 4.7, 3.9, and 7.0 days, respectively. The correlation between simulated and observed daily concentrations time series reaches 0.69. Statistical scores show that the model performs better over the central Europe source region where pollen loads are larger. From these simulations health risks associated common ragweed pollen spread are then evaluated through calculation of exposure time above health-relevant threshold levels. The total risk area with concentration above 5 grains m−3 takes up 29.5 % of domain. The longest exposure time occurs on Pannonian Plain, where the number of days per year with the daily concentration above 20 grains m−3 exceeds 30.

Sign in / Sign up

Export Citation Format

Share Document