Pollen data
2022
![](https://internationalragweedsociety.org/wp-content/uploads/2022/11/RagweedChart-Brussels.jpg)
Brussels
![](https://internationalragweedsociety.org/wp-content/uploads/2022/11/Legnano-2022-vs-2021.png)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2022/11/Legnano-2022-vs-average-2012-2021.png)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2022/11/Lyon-1.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2022/11/Magenta-2022-vs-2021.png)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2022/11/Magenta-2022-vs-average-2012-2021.png)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2022/11/Rho-2022-vs-2021.png)
Rho
![](https://internationalragweedsociety.org/wp-content/uploads/2022/11/Rho-2022-vs-average-2012-2021.png)
Rho
![](https://internationalragweedsociety.org/wp-content/uploads/2022/11/Image1-1.png)
Roussillon
2021
![](https://internationalragweedsociety.org/wp-content/uploads/2021/12/Legnano-2021-vs-2020.jpg)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2021/12/Legnano-2021-vs-average-2011-2020.jpg)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2021/12/Magenta-2021-vs-2020.jpg)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2021/12/Magenta-2021-vs-average-2011-2020.jpg)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2021/12/Rho-2021-vs-2020.jpg)
Rho
![](https://internationalragweedsociety.org/wp-content/uploads/2021/12/Rho-2021-vs-average-2011-2020.jpg)
Rho
2020
![](https://internationalragweedsociety.org/wp-content/uploads/2020/12/Sciensano-Ragweed-Brussels2020-1024x572.jpg)
Brussels
![](https://internationalragweedsociety.org/wp-content/uploads/2020/11/pollen_pollclim_2020_khambrd0_PGE.png)
Geneva
![](https://internationalragweedsociety.org/wp-content/uploads/2020/11/Legnano-2020-vs-2019.jpg)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2020/11/Legnano-2020-vs-average-2010-2019.jpg)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2020/11/pollen_pollclim_2020_khambrd0_PLU.png)
Lugano
![](https://internationalragweedsociety.org/wp-content/uploads/2020/11/Magenta-2020-vs-2019.jpg)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2020/11/Magenta-2020-vs-average-2010-2019.jpg)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2020/11/Rho-2020-vs-2019.jpg)
Rho
![](https://internationalragweedsociety.org/wp-content/uploads/2020/11/Rho-2020-vs-average-2010-2019.jpg)
Rho
2019
![](https://internationalragweedsociety.org/wp-content/uploads/2020/12/Sciensano-Ragweed-Brussels2019-1024x566.jpg)
Brussels
![](https://internationalragweedsociety.org/wp-content/uploads/2020/05/Legnano2019vs2018.jpg)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2020/05/Legnano2019vsaverage2009-2018.jpg)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2020/05/Lyon2019-1024x515.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2020/05/Magenta2019vs2018.jpg)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2020/05/Magenta2019vsaverage2009-2018.jpg)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2020/05/Rho2019vs2018.jpg)
Rho
![](https://internationalragweedsociety.org/wp-content/uploads/2020/05/Rho2019vsaverage2009-2018.jpg)
Rho
![](https://internationalragweedsociety.org/wp-content/uploads/2020/05/Roussillon-1024x533.png)
Roussillon
2018
![](https://internationalragweedsociety.org/wp-content/uploads/2019/03/Brussels-2008-2018-1024x588.jpg)
Brussels
![](https://internationalragweedsociety.org/wp-content/uploads/2019/01/Geneve1996-2018.png)
Geneva
![](https://internationalragweedsociety.org/wp-content/uploads/2019/04/Legnano-2018-vs-2017.jpg)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/04/Legnano-2018-vs-average-2008-2017.jpg)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/01/Lugano1996-2018.png)
Lugano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lyon2018-1024x457.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/04/Magenta-2018-vs-2017.jpg)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2019/04/Magenta-2018-vs-average-2008-2017.jpg)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2019/03/Munich-2018.png)
Munich
![](https://internationalragweedsociety.org/wp-content/uploads/2019/03/Munich-2006-2018.png)
Munich
![](https://internationalragweedsociety.org/wp-content/uploads/2019/04/Rho-2018-vs-average-2008-2017.jpg)
Rho
![](https://internationalragweedsociety.org/wp-content/uploads/2019/04/Rho-2018-vs-2017.jpg)
Rho
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Roussillon2018-1024x531.png)
Roussillon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/03/Ambrosia_Vinnytsia_2018_versus_2017-1024x683.png)
Vinnytsia
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Ambrosia_Vinnytsia_2018_versus_2009_2017-1024x683.png)
Vinnytsia
2017
![](https://internationalragweedsociety.org/wp-content/uploads/2019/01/Geneve1996-2017.png)
Geneva
![](https://internationalragweedsociety.org/wp-content/uploads/2018/09/Legnano_2017-1024x512.png)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2018/09/Legnano_2017_vs_2007-2016-1024x512.png)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/01/Lugano1996-2017.png)
Lugano
![](https://internationalragweedsociety.org/wp-content/uploads/2018/07/Lyon2017-1024x555.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2018/07/Lyon2007-2017-1024x458.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2018/09/Magenta_2017-1024x512.png)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2018/09/Magenta_2017_vs_2007-2016-1024x512.png)
Magenta
![](https://internationalragweedsociety.org/wp-content/uploads/2018/09/Rho_2017-1024x512.png)
Rho
![](https://internationalragweedsociety.org/wp-content/uploads/2018/09/Rho_2017_vs_2007-2016-1024x512.png)
Rho
![](https://internationalragweedsociety.org/wp-content/uploads/2018/07/Roussillon2017-1024x554.png)
Roussillon
![](https://internationalragweedsociety.org/wp-content/uploads/2018/07/Roussillon2007-2017-1024x567.png)
Roussillon
2016
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Geneva2015vs2016-1024x508.png)
Geneva
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Geneva1996-2016.png)
Geneva
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/HU_2016_vs_2015-1024x518.png)
Hungary
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/HU_2016_vs_av2006-2015-1024x514.png)
Hungary
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Legnano_2016_vs_2015-1024x512.png)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Legnano_2016_vs_2006-2015-1024x512.png)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lugano2015vs2016-1024x509.png)
Lugano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lugano1996-2016.png)
Lugano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lyon-2016vs2015-1024x459.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lyon-2006-2016-1024x458.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Po_Valley_2016_vs_2015-1024x512.png)
Po valley
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Po_Valley_2016_vs_2006-2015-1024x512.png)
Po valley
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Roussillon-2016vs2015-1024x449.png)
Roussillon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Roussillon-2006-2015-1024x450.png)
Roussillon
2015
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/busto_arsizio-2015vs2014-1024x512.png)
Busto Arsizio
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/busto_arsizio-2005-2015-1024x512.png)
Busto Arsizio
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Geneva-2014vs2015.png)
Geneva
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Geneva-1997-2015-1024x718.png)
Geneva
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/2015vs2014_Hungary.png)
Hungary
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/2015vs2005-2014_Hungary.png)
Hungary
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Istanbul_2014vs2015-1024x567.png)
Istanbul
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/alps_2015_vs_2014-1024x512.png)
Italy-Alps
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/alps_2015_vs_average_2005-2014-1024x506.png)
Italy-Alps
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Legnano_2015_vs_2014-1024x512.png)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Legnano_2015_vs_2005-2014-1024x512.png)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lugano-2014vs2015-1024x564.png)
Lugano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lugano-1997-2015-1024x717.png)
Lugano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lyon-2015vs2014.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lyon-2005-2015.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/po_valley_2015_vs_2014-1024x512.png)
Po valley
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/po_valley_2015_vs_average_2005-2014-1024x512.png)
Po valley
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Roussillon-2015vs2014.png)
Roussillon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Roussillon-2005-2015.png)
Roussillon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Zagreb_2014-2015.png)
Zagreb
2014
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/alps_2014_vs_2013-1024x512.png)
Alps-Italy
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/alps_2014_vs_average_2004-2013-1024x512.png)
Alps-Italy
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/busto_arsizio-2014vs2013-1024x512.png)
Busto Arsizio
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/busto_arsizio-2004-2014-1024x512.png)
Busto Arsizio
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Geneva-2014vs2013.png)
Geneva
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Geneva-2004-2014-1024x691.png)
Geneva
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/2014vs2013_Hungary_new-1024x674.png)
Hungary
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/2014vs2004-2013_Hungary-1024x674.png)
Hungary
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/2014_vs_2013.png)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/2014_vs_2004-2013.png)
Legnano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lugano-2014vs2013.png)
Lugano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lugano-2004-2014-1024x688.png)
Lugano
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lyon-2014vs2013.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Lyon-2014vsAVG2004-2013.png)
Lyon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/po_valley_2014_vs_2013-1024x512.png)
Po valley
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/po_valley_2014_vs_average_2004-2013-1024x512.png)
Po valley
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Roussillon-2014vs2013.png)
Roussillon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Roussillon-2014vsAVG2004-2013.png)
Roussillon
![](https://internationalragweedsociety.org/wp-content/uploads/2019/05/Samaria2014.png)
Samaria