Pollen count for the region Preston
willow
alder
hazel
yew
poplar
ash
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
willow
alder
plantain
oak
nettle
mugwort
hazel
grasses
elm
birch
yew
rumex
poplar
ash
hazel
yew
willow
poplar
ash
alder
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
willow
poplar
alder
hazel
yew
ash
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
willow
poplar
alder
plantain
oak
nettle
mugwort
hazel
grasses
elm
birch
yew
rumex
ash
hazel
yew
willow
poplar
ash
alder
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
willow
poplar
hazel
yew
ash
alder
plantain
oak
nettle
mugwort
grasses
elm
birch
rumex
