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I have a very serious ragweed allergy and I am living in Hungary which is pretty much super infested. I started wondering which countries are affected by this lovely plant, because I don't want to have vacation in the season in these places.
So the question is: is there a map that shows its affected areas? If not, is there a publicly available international database of affected areas?
https://www.polleninfo.org/fileadmin/template/img/chartimages/currency/resized/POAC_06_1.gif
According to the little number on the lower left, this is from 2012. The situation is worse than I expected in Europe. Also, there is a map from the states:
http://www.allamericanallergy.com/images/Ragweed%20Pollen%20Map%2008-25-2014.jpg
It will be so cool to find a map from the whole globe though.
