Pollen seasons are becoming longer and more intense in many places studied
Average annual
change to pollen
concentrations,
%
Change to
pollen season
length, days
5.0
10.0
0%
0
1
Fairbanks, US
0.9
12.2%
Minneapolis, US
11.5%
1.9
Thessaloniki, Greece
11.2%
0.9
Turku, Finland
10.4%
0.8
Krakow, Poland
9.0%
1.5
Moscow, Russia
7.7%
1.0
Reykjavik, Iceland
7.4%
1.2
Amiens, France
3.8%
0.9
Winnipeg, Canada
3.7%
1.2
Kevo, Finland
3.1%
0.8
Papillion, US
3.1%
0.6
Brussels, Belgium
2.8%
0.8
Geneva, Switzerland
2.3%
1.6
Saskatoon, Canada
1.7%
0.7
Legnano, Italy
−0.3%
−0.4
Busan, Korea
−1.0%
1.1
Seoul, Korea
−1.3%
0.7
Average annual
change to pollen
concentrations, %
Change to pollen
season length, days
5.0
10.0
0%
0
0.5
1
1.5
Fairbanks, US
0.9
12.2%
Minneapolis, US
11.5%
1.9
Thessaloniki, Greece
11.2%
0.9
Turku, Finland
10.4%
0.8
Krakow, Poland
9.0%
1.5
Moscow, Russia
7.7%
1.0
Reykjavik, Iceland
7.4%
1.2
Amiens, France
3.8%
0.9
Winnipeg, Canada
3.7%
1.2
Kevo, Finland
3.1%
0.8
Papillion, US
3.1%
0.6
Brussels, Belgium
2.8%
0.8
Geneva, Switzerland
2.3%
1.6
Saskatoon, Canada
1.7%
0.7
Legnano, Italy
−0.3%
−0.4
Busan, Korea
−1.0%
1.1
Seoul, Korea
−1.3%
0.7
Average annual change to
pollen concentrations, %
Change to pollen
season length, days
5.0
10.0
0%
0
0.5
1
1.5
Fairbanks, US
0.9
12.2%
Minneapolis, US
11.5%
1.9
Thessaloniki, Greece
11.2%
0.9
Turku, Finland
10.4%
0.8
Krakow, Poland
9.0%
1.5
Moscow, Russia
7.7%
1.0
Reykjavik, Iceland
7.4%
1.2
Amiens, France
3.8%
0.9
Winnipeg, Canada
3.7%
1.2
Kevo, Finland
3.1%
0.8
Papillion, US
3.1%
0.6
Brussels, Belgium
2.8%
0.8
Geneva, Switzerland
2.3%
1.6
Saskatoon, Canada
1.7%
0.7
Legnano, Italy
−0.3%
−0.4
Busan, Korea
−1.0%
1.1
Seoul, Korea
−1.3%
0.7
Average annual change to
pollen concentrations, %
Change to pollen season length, days
5.0
10.0
0%
0
0.5
1
1.5
Fairbanks, US
0.9
12.2%
Minneapolis, US
11.5%
1.9
Thessaloniki, Greece
11.2%
0.9
Turku, Finland
10.4%
0.8
Krakow, Poland
9.0%
1.5
Moscow, Russia
7.7%
1.0
Reykjavik, Iceland
7.4%
1.2
Amiens, France
3.8%
0.9
Winnipeg, Canada
3.7%
1.2
Kevo, Finland
3.1%
0.8
Papillion, US
3.1%
0.6
Brussels, Belgium
2.8%
0.8
Geneva, Switzerland
2.3%
1.6
Saskatoon, Canada
1.7%
0.7
Legnano, Italy
−0.3%
−0.4
Busan, Korea
−1.0%
1.1
Seoul, Korea
−1.3%
0.7
Average annual
change to pollen
concentrations,
%
Change to
pollen season
length, days
5.0
10.0
0%
0
1
Fairbanks, US
0.9
12.2%
Minneapolis, US
11.5%
1.9
Thessaloniki, Greece
11.2%
0.9
Turku, Finland
10.4%
0.8
Krakow, Poland
9.0%
1.5
Moscow, Russia
7.7%
1.0
Reykjavik, Iceland
7.4%
1.2
Amiens, France
3.8%
0.9
Winnipeg, Canada
3.7%
1.2
Kevo, Finland
3.1%
0.8
Papillion, US
3.1%
0.6
Brussels, Belgium
2.8%
0.8
Geneva, Switzerland
2.3%
1.6
Saskatoon, Canada
1.7%
0.7
Legnano, Italy
−0.3%
−0.4
Busan, Korea
−1.0%
1.1
Seoul, Korea
−1.3%
0.7
Change to pollen
season length, days
Average annual
change to pollen
concentrations, %
5.0
10.0
0%
0
0.5
1
1.5
Fairbanks, US
0.9
12.2%
Minneapolis, US
11.5%
1.9
Thessaloniki, Greece
11.2%
0.9
Turku, Finland
10.4%
0.8
Krakow, Poland
9.0%
1.5
Moscow, Russia
7.7%
1.0
Reykjavik, Iceland
7.4%
1.2
Amiens, France
3.8%
0.9
Winnipeg, Canada
3.7%
1.2
Kevo, Finland
3.1%
0.8
Papillion, US
3.1%
0.6
Brussels, Belgium
2.8%
0.8
Geneva, Switzerland
2.3%
1.6
Saskatoon, Canada
1.7%
0.7
Legnano, Italy
−0.3%
−0.4
Busan, Korea
−1.0%
1.1
Seoul, Korea
−1.3%
0.7
Average annual change to
pollen concentrations, %
Change to pollen
season length, days
5.0
10.0
0%
0
0.5
1
1.5
Fairbanks, US
0.9
12.2%
Minneapolis, US
11.5%
1.9
Thessaloniki, Greece
11.2%
0.9
Turku, Finland
10.4%
0.8
Krakow, Poland
9.0%
1.5
Moscow, Russia
7.7%
1.0
Reykjavik, Iceland
7.4%
1.2
Amiens, France
3.8%
0.9
Winnipeg, Canada
3.7%
1.2
Kevo, Finland
3.1%
0.8
Papillion, US
3.1%
0.6
Brussels, Belgium
2.8%
0.8
Geneva, Switzerland
2.3%
1.6
Saskatoon, Canada
1.7%
0.7
Legnano, Italy
−0.3%
−0.4
Busan, Korea
−1.0%
1.1
Seoul, Korea
−1.3%
0.7
Average annual change to
pollen concentrations, %
Change to pollen season length, days
5.0
10.0
0%
0
0.5
1
1.5
Fairbanks, US
0.9
12.2%
Minneapolis, US
11.5%
1.9
Thessaloniki, Greece
11.2%
0.9
Turku, Finland
10.4%
0.8
Krakow, Poland
9.0%
1.5
Moscow, Russia
7.7%
1.0
Reykjavik, Iceland
7.4%
1.2
Amiens, France
3.8%
0.9
Winnipeg, Canada
3.7%
1.2
Kevo, Finland
3.1%
0.8
Papillion, US
3.1%
0.6
Brussels, Belgium
2.8%
0.8
Geneva, Switzerland
2.3%
1.6
Saskatoon, Canada
1.7%
0.7
Legnano, Italy
−0.3%
−0.4
Busan, Korea
−1.0%
1.1
Seoul, Korea
−1.3%
0.7