Pollen count for the region Boulogne-sur-Mer
birch
oak
hornbeam
cypress
poplar
ash
mugwort
ragweed
hazel
grasses
plantain
alder
birch
oak
hornbeam
cypress
poplar
ash
mugwort
ragweed
hazel
grasses
plantain
alder
birch
oak
hornbeam
cypress
poplar
ash
mugwort
ragweed
hazel
grasses
plantain
alder
birch
oak
hornbeam
cypress
poplar
ash
mugwort
ragweed
hazel
grasses
plantain
alder
birch
oak
hornbeam
cypress
poplar
ash
mugwort
ragweed
hazel
grasses
plantain
alder
birch
oak
cypress
poplar
hornbeam
ash
mugwort
ragweed
hazel
grasses
plantain
alder
birch
oak
cypress
hornbeam
poplar
ash
mugwort
ragweed
hazel
grasses
plantain
alder
