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